The "world's lightest" Sony Xperia Z4 Tablet. Sony Xperia Z4 - Specifications BMW z4 specifications

The BMW Z4 Roadster is an open-air two-seater that replaces the Z3 Roadster. Compared to its predecessor, the Z4 has grown slightly in all directions. Like its predecessor, the BMW Z4 is produced in the USA at the Spartanburg plant. The roadster went on sale in the United States in October 2002, and did not appear in Europe until March 2003.

The BMW Z4 is a classic roadster with a sporty character. Shark features are manifested in the design of the car: the toothy "jaws" of the false radiator grille, the heavy gaze of the headlights, the faceted long "muzzle". Convex and concave surfaces create a magnificent play of light and shadow. The BMW Z4 has a waist. It is formed by "sunken" doors, behind which the body seems to expand. The notch on the door from above is limited by a clear edge of the belt line, and from below - by an equally sharply outlined "stiffening rib" of a high threshold. The picture is completed by a slash, boldly drawn from the bottom up from the front wheel to the windshield frame. And in the middle of this slanted rib there is a blue and white BMW emblem, under which an orange repeater "turn signals" is hidden. The distinctive BMW radiator grille, surrounded by shining chrome and optional dual xenon headlights with integrated fog lights, gives the Z4 an elegant and assertive look. The Z4 2.5i comes standard with an elegant, power-operated fabric tarpaulin. Electric tarpaulin (optional on 2.5i and standard on 3.0i) opens in just 10 seconds.

The main "forming surface" of the interior is the "curved-concave" front panel. All the information you need is right in front of your eyes thanks to the chronograph style instruments. Enhanced Navigation System with 16x9 display - non-glare TFT monitor (optional) - slides out of the instrument panel by pressing a dedicated button. The steering wheel is small, okay, with a leather rim and incredibly stylish metallic spokes. The design of the BMW Z4 is at a height, every detail has been worked out - whether it be the protective arches behind the seats, the handbrake handle or the door panels, "crossed out" by special "twisted" handles. The interior of the sports version with "metallic" trim is especially good. "Sport" seats for the driver and passenger are standard on the Z4. In the Comfort version, only natural wood inserts create some warmth, replacing the silvery plastic panels for aluminum. Otherwise, everything is extremely restrained, technologically advanced and “sterile”. Not a single superfluous, pretentious detail, but each of the available ones is perfect in its completeness and functionality.

The advantage of the new body is the relatively large trunk (up to 260 liters) with a convertible tarpaulin compartment, which is enough to carry two large bags. The fabric tarpaulin folds up in a Z-shape and has a heated rear window.

Additional options include a Hi-Fi audio system with Carver bass booster and a dedicated telephone. The new Z4 comes standard with a sporty leather steering wheel, roll-over protection system and tires that allow you to get to the tire shop on your own in the event of a puncture.

A high-octane blend of impeccable quality and state-of-the-art technology forms the basis of the six-cylinder BMW Z4 engines, made from a special lightweight alloy. Combining the unique Double Vanos system for optimal valve control, a dedicated air intake module and BMW four-valve technology, the highest torque and lightning-fast response are achieved. When activated in Sport mode, the optional Driving Dynamic Control boosts engine power to an even higher level. The Z4 models are equipped with the 3.0i engine (170 kW / 231 hp / top speed 250 km / h) and the Z4 2.5i (141 kW / 192 hp / 235 km / h). The Z4 3.0i comes with a six-speed manual transmission and a five-speed for the Z4 2.5i, or a five-speed automatic transmission (optional).

Thanks to its wide track, low center of gravity, optimal weight distribution along the axles in a 50:50 ratio, and precise steering (Electric Power Steering), the BMW Z4 provides good dynamics and controllability. In addition, durable, high-performance brakes and Dynamic Stability Control (DSC III) with traction control mode ensure maximum driving safety in all driving situations.

On the Z4, for the first time in the history of BMW vehicles, the conventional power steering has been replaced by an electric power steering. This arrangement is much simpler. The electric power steering only consumes energy when you turn the steering wheel and is very easy to control according to the speed or the level of lateral acceleration. But if behind the shoulders of BMW engineers and the company ZF, which traditionally supplies steering gears to the Bavarians, there are decades of experience in tuning the reactive action of hydraulic boosters, then with electric motors everything will have to be comprehended anew. The Z4 Sport version is extremely responsive to the slightest steering movements. And pressing the "sport" button on the console to the left of the gear lever changes not only the characteristics of the "electronic" gas pedal, but also the algorithm of the electric power steering. It's better to ride in "sport", but not much. The steering effort is higher, but there is still no "transparency". The reactions are immediate, but not accurate - you have to correct the trajectory in high-speed turns with fast impulsive movements. But in turns, the BMW Z4 is no slower than the Speedster. First, the power unit here fully justifies this definition: it really is power. The traction "at the bottom" is powerful, and after 3000 rpm pressing the gas pedal instantly causes a jet push in any gear! The chassis here, whatever you say, is excellent. The tires have a death grip on the asphalt, the geometry of the suspensions allows the roadster to follow the wheel with ease and willingly dive into high-speed turns. Gradually you get used to the reactions of the car, and the only annoying thing is the need to rest your knee on the door handle in a left turn.

The brakes are great. The effort on the pedals and its stroke are selected so that they make it easy to brake just on the verge of blocking - that is, you squeeze the maximum deceleration out of the car without activating the ABS! And how is the "driver" electronics set up ... The DSC stabilization system prevents slipping unobtrusively, but imperiously and confidently. Contrary to all motorsport canons, the BMW Z4 can safely press on the gas or slow down in a corner - the computer will instantly remove excess traction or recalculate the required balance of braking forces on each wheel. In this case, a single press of the DSC button does not turn off the stabilization system, as usual, but activates DTC - Dynamic Traction Control. As the Bavarians say, this is some kind of compensation for the lack of a limited-slip differential on the Z4 - activation of the DTC allows some "controlled" wheel slip. But with the development of a skid, the electronics immediately "wake up" and pulls back the driver. The "asphalt" roadster is not designed for rally driving techniques!

The Sport version has a very stiff suspension. The bass sound of an in-line "six" fills the interior - even an open one with a folded roof. If the voice of the engine was a little louder, you could call it annoying ... A ride in the "comfortable" version evokes more pleasant emotions. On 16-inch wheels instead of 17-inch, without the "sport" button. The roadster reacts more calmly to steering turns, the exhaust sound is not so aggressive, the suspension “swallows” bumps noticeably softer. Such a car is more predictable and understandable!

Perhaps the flaws in the behavior of the "sports" roadster are largely due to the other wheels. For example, on longitudinal waves of asphalt, the steering wheel of a car with a "sports" suspension begins to tilt towards the inclination - this happens when, due to the installation of wheels with a different offset, the so-called run-in shoulder of the steered wheels changes. A "comfortable" roadster on the same slope calmly drives straight, not reacting to the road profile. And the BMW Z4 3.0i Comfort is hardly slower than the "sports" version.

By the way, despite the "fast" rack and pinion steering gear with a very low gear ratio (14.2), the steering wheel on the Z4 makes more than three turns from lock to lock. As a result, the front wheels turn at a very large angle. The turning circle, respectively, of the roadster is less than ten meters - excellent maneuverability!

on the most powerful platform Snapdragon 810

At MWC 2015, Sony presented only two new products in the segment of mobile devices - the M4 Aqua smartphone and the Z4 Tablet, which we immediately got to know better. A detailed study of the presented smartphone is still ahead, and in this article we will talk about the fourth tablet in the Xperia series. It is noticed that in mobile devices Sony alternates the output of large and small devices, so after the Z3 Tablet Compact a large ten-inch tablet saw the light.

Technical specifications Sony Xperia Z4 Tablet (SGP771)

Model Number: SGP771
Single chip: Qualcomm Snapdragon 810
Central processing unit: 4 cores Cortex-A57 @ 2 GHz + 4 cores Cortex-A53
GPU: Adreno 430 @ 600 MHz
Display: IPS, 10.1 ″, 2560 × 1600, 299 ppi
RAM: 3 GB
Internal memory: 32 GB
MicroSD card support (up to 128GB)
Mobile networks GSM, WCDMA, LTE Cat 6 (optional)
Wi-Fi 802.11a / b / g / n / ac with MIMO (2.4 + 5 GHz)
Bluetooth 4.1, GPS / A-GPS / Glonass / BDS
Cameras: 5.1 megapixel front, 8.1 megapixel rear
Micro-USB (supports MHL 3.0), Nano-SIM (optional), 3.5mm headphone jack
Battery capacity: 6000 mAh
Operating system: Google Android 5.0.2
Size: 254 x 167 x 6.1mm
Weight: 389g / 393g (Wi-Fi / LTE versions)

Sony Xperia tablets have always been among the most expensive tablets on the market, and the Z4 Tablet's specs reflect exactly why this is.

	Sony Xperia Z4 Tablet	Sony Xperia Z2 Tablet	Samsung Galaxy Tab S 10.5	Samsung Galaxy Note 10.1 (2014)	iPad Air 2
Screen	IPS, 10.1 ″, 2560 × 1600, 299 ppi	IPS, 10.1 ″, 1920 × 1200 (218 ppi)	SuperAMOLED, 10.5 ″, 2560 × 1600 (287 ppi)	PLS, 10.1 ″, 2560 × 1600 (299 ppi)	IPS, 9.7 ″, 2048 × 1536 (264 ppi)
SoC (processor)	Qualcomm Snapdragon 810 (4x Cortex-A57 @ 2GHz & 4x Cortex-A53)	Qualcomm Snapdragon 801 @ 2.3 GHz (4 core Krait 400)		Samsung Exynos 5 Octa (4 cores @ 1.9 GHz and 4 cores @ 1.3 GHz)	Apple A8X @ 1.5 GHz 64 bits (3 Cyclone cores) + M8 coprocessor
GPU	Adreno 430	Adreno 330	Mali-T628 MP6	Mali-T628 MP6	PowerVR GX6650
RAM	3 GB	3 GB	3 GB	3 GB	2 GB
Flash memory	32 GB	from 16 to 32 GB	16 GB	from 16 to 64 GB	from 16 to 128 GB
Memory card support	microSD (up to 128GB)	microSD (up to 128GB)	microSD (up to 128GB)	microSD (up to 64 GB)	-
Connectors	Micro-USB (with MHL support), 3.5mm headphone jack	dock connector,	Micro-USB (with OTG and MHL support), 3.5mm headphone jack	Micro-USB (with OTG and MHL support), 3.5mm headphone jack	Lightning dock connector, 3.5mm headphone jack
Cameras	front (5.1 megapixel; video 1080p) and rear (8.1 megapixel; video 1080p)	front (2.2 Mp; video 1080p) and rear (8.1 Mp; video 1080p)	front (2.1 Mp; video 1080p) and rear (8 Mp; video 1080p)	front (1.2 Mp), rear (8 Mp, 1080p video shooting)	front (1.2 Mp, 720p video) and rear (8 Mp, 1080p video)
Internet		Wi-Fi 802.11a / b / g / n / ac MIMO (optional 3G and LTE)	Wi-Fi 802.11a / b / g / n / ac MIMO (optional 3G and LTE)	Wi-Fi, 3G (optional LTE)	Wi-Fi (optional 3G and LTE)
Wireless Modules	Bluetooth, GPS / Glonass / BDS, NFC	Bluetooth, GPS / Glonass, IrDA, NFC	Bluetooth, GPS / Glonass / BDS, IrDA, NFC	Bluetooth, GPS. Glonass	Bluetooth, GPS
Battery capacity (mAh)	6000	6000	7900	8220	7340
Operating system*	Google Android 5.0.2	Google Android 4.4	Google Android 4.4	Google Android 4.3	Apple iOS 8.1
Dimensions ** (mm)	254 x 167 x 6.1	266 x 172 x 6.4	247 × 177 × 6.6	243 × 171 × 7.9	240 x 170 x 6.1
Weight (g)	393	424	467	544	451
average price	T-12260248	T-10729481	T-10964274	T-10498126	T-11153496
Sony Xperia Z4 Tablet Retail Offers (Wi-Fi Version)	L-12260248-5
Retail offerings for Sony Xperia Z4 Tablet (LTE version)	L-12260250-5

* at the time of preparation of the corresponding article
** according to the manufacturer's information

Sony's large-format tablet is not much different from its predecessor, released a year ago. Increased to the current display resolution. The asset is still the most powerful SoC of the Snapdragon line, which has replaced several generations since then. The infrared port and the proprietary dock connector were eliminated as unnecessary, thanks to which the tablet's weight began to fit into 400 g, which is very small for a ten-inch device. The rest of the characteristics remained unchanged.

Design

The Sony Xperia Z4 Tablet comes with a charger only. We got the tablet without it, in a regular white box, so let's get straight to the exterior. We got a black version for testing, there is also a white version on sale.

The Xperia Z4 Tablet can at first glance be distinguished from the Z2 Tablet by the size of the display bezels. The previous version was recognizable for its pronounced landscape orientation, which made it look somewhat disproportionate. The Z4 Tablet has become a little shorter and wider and, accordingly, more attractive.

With the new field sizes, the device can be comfortably gripped with one hand on either side, which is facilitated by its low weight. Other large tablets are not as well thought out in this regard. The manufacturer's logo and the placement of the front camera make it clear that the device, after all, is designed more for landscape orientation.

The front camera is in the center, which is convenient. At the same time, the manufacturer's logo is neatly aligned along the edge of the display. On the opposite side is the charging LED indicator. Such an interesting arrangement of the front panel elements distinguishes only large Xperia tablets, in the Z3 Tablet Compact everything is less original.

With the latest Sony Xperia devices, the tablet has other structural elements in common - contrasting glossy shock-resistant plastic corners. In addition, the Z2 Tablet had silver side edges perpendicular to the body, and now the tablet's profile is slightly convex on all sides.

The back panel of the device is made of soft-touch plastic. This material provides excellent grip and good fingerprint resistance. But if greasy marks do appear, it will take longer than usual to wipe them off.

In the left corner is the rear camera lens. Flash is not provided. Nearby is the NFC pairing zone. On the upper edge, the headphone jack barely fits into the body.

On the left, a silver power button contrasts with the dark body. It protrudes slightly more than the adjacent volume buttons, so it is more convenient to use it. But the rocker is also quite embossed, there are no complaints about it either.

The microphone was brought up. In principle, this is correct, since no one will hold a ten-inch tablet to their ear for conversation, and when communicating via video chats, the upper edge is not obscured.

Behind the long flap are the microSD and Nano-SIM slots (in the LTE version). Pulling on the plastic tip sticking out of the slot removes the sticker from the device. It contains the serial number and other information about the device. Thus, Sony provides the necessary information and does not spoil the appearance. In the Xperia Z2 Tablet, all this information has been stretched out on a silver edge, and the new solution looks more elegant.

There is also a small yellow button hidden here for forced shutdown of the device. The SIM card is inserted into a removable tray.

On the right side is the Micro-USB connector, and next to it is the hole for one of the two stereo speakers. They provide high quality sound and a decent headroom, on par with expensive mobile devices.

The implementation of speakers is far from the only advantage of the Sony Xperia Z4 Tablet. This device has incorporated all the successful changes made to the design of the line over the past couple of generations. The result is a lightweight, comfortable and beautiful tablet. And besides, it is protected from external influences in accordance with IP65 and IP68 standards, which implies full protection from dust, sea waves, strong jets and the possibility of prolonged immersion to a depth of 1 m. Will further testing make the same pleasant experience?

Screen

The front surface of the screen is made in the form of a glass plate with a mirror-smooth surface, resistant to scratches. Judging by the reflection of objects, the anti-glare properties of the screen may be slightly worse than that of Google Nexus 7 (2013) (hereinafter simply Nexus 7). For clarity, here is a photo in which a white surface is reflected in the turned off screens of both devices (Sony Xperia Z4 is on the right, then they can be distinguished by their size):

Both screens are dark, but Sony's screen is still slightly lighter (its brightness in the photo is 115 versus 109 for the Nexus 7). The tripling of reflected objects in the Sony Xperia Z4 screen is very weak, which indicates that there is no air gap between the outer glass (aka the touch sensor) and the matrix surface ( screen type OGS - One Glass Solution). Due to the smaller number of boundaries (such as glass / air) with very different refractive indices, such screens look better in strong ambient light, but their repair in the case of cracked outer glass is much more expensive, since the entire screen has to be changed. On the outside of the screen has a special oleophobic (grease-repellent) coating (very effective, slightly better than the Nexus 7), therefore, fingerprints are removed much more easily, and appear at a slower speed than in the case of ordinary glass.

With manual brightness control, its maximum value was about 450 cd / m², and the minimum is 3.8 cd / m²... The maximum value is quite high, and given the good anti-glare properties, the image on the screen should be clearly visible in bright daylight. In complete darkness, the brightness can be lowered to a comfortable level. However, Sony has promised a 40% increase in brightness over the Xperia Z2, but in reality it is only 50 cd / m², or 12.5%. That is, the fact of deception of the consumer takes place. Automatic brightness control works according to the light sensor (it is located to the left of the front camera). In automatic mode, when the ambient light conditions change, the screen brightness both increases and decreases. The operation of this function depends on the position of the brightness adjustment. If it is at the maximum, then in complete darkness the auto-brightness function reduces the brightness to 14 cd / m2 (normal), in an office illuminated with artificial light (about 400 lux) it sets to 260 cd / m2 (a bit too much), in a very bright environment (corresponds to the lighting outdoors on a clear day, but without direct sunlight - 20,000 lux or slightly more) increases to 450 cd / m² (up to the maximum, which is needed). If the brightness slider is at half the scale (it is very non-linear - after 50% the brightness goes up sharply with an increase in the setting value), then the screen brightness for the three conditions indicated above is as follows: 12, 170 and 450 cd / m² (suitable values). If the dimmer is set to minimum - 6.8, 80, 450 cd / m². Eventually the automatic brightness control function works absolutely adequately... Only at a very low brightness level there is a significant modulation of the backlight, but its frequency is very high, about 10 kHz, so no screen flickering is visible under any conditions.

This screen uses matrix type IPS... The micrographs show the typical IPS subpixel structure:

For comparison, you can see the gallery of photomicrographs of screens used in mobile technology.

The screen has good viewing angles without tint inversion and no significant color shift even with large deviations from the perpendicular to the screen. For comparison, here is a photo in which the screens of Nexus 7 and Sony Xperia Z4 display the same images, while the brightness of the screens was initially set to about 200 cd / m² (along the white field in the entire screen), and the color balance on the camera was forced to 6500 K . White field perpendicular to the plane of the screens:

Note the good uniformity of brightness and color tone of the white field. And the test picture:

The colors on the Sony Xperia Z4's screen are oversaturated, skin tones are strongly redshifted, and the color balance is noticeably different from standard. Now at an angle of approximately 45 degrees to the plane and to the side of the screen:

It can be seen that the colors did not change much on both screens, but on the Sony Xperia Z4 the contrast decreased to a large extent due to the strong black highlighting. And white box:

The brightness at an angle on both screens has noticeably decreased (at least 5 times, based on the difference in exposure), but in the case of the Sony Xperia Z4 Tablet, the drop in brightness is slightly less (brightness in photos is 233 versus 224 for Nexus 7). At the same time, the color tone changed slightly. The black field, when deviated along the diagonal, is lightened very strongly and acquires a violet or red-violet tint. The photos below demonstrate this (the brightness of the white areas in the direction perpendicular to the plane of the screens is the same for the screens!):

And from a different angle:

When viewed from a perpendicular view, the black field uniformity is very good:

Contrast (approximately in the center of the screen) high - about 900:1 ... The response time for the transition black-white-black is 21 ms (11 ms on + 10 ms off). The transition between gray tones of 25% and 75% (based on the numerical value of the color) and back takes 33 ms in total. Constructed from 32 points with equal intervals by the numerical value of the shade of gray, the gamma curve did not reveal a blockage in either highlights or shadows, and the exponent of the approximating power function turned out to be 2.15, which is close to the standard value, while the real gamma curve deviates slightly from power dependence:

The tablet does not have any dynamic adjustment of the backlight brightness depending on the nature of the displayed image, which is very good.

The color gamut is noticeably wider than sRGB:

We look at the spectra:

They are very atypical. As they say on the Sony website, in this screen (with the name Triluminos), LEDs with a blue emitter and a green and red phosphor (usually a blue emitter and a yellow phosphor) are used, which, in combination with special matrix light filters, allows obtaining a wide color gamut. Unfortunately, as a result, the colors of images - drawings, photographs and films - oriented to the sRGB space (and there are the overwhelming majority of them) have unnaturally high saturation. This is especially noticeable on recognizable shades, such as skin tones. The result is shown in the photo above.

The balance of shades on the gray scale is bad, since the color temperature is significantly higher than the standard 6500 K. The balance is distorted, of course, due to the excess of blue and green components, which at the same brightness reduces power consumption. True, the deviation from the blackbody spectrum (ΔE) is less than 10, which is considered an acceptable indicator for a consumer device. At the same time, the variation in color temperature and ΔE is small, which has a positive effect on the visual perception of color balance. (The darkest areas of the gray scale can be ignored, since the color balance there is not very important, and the error in measuring color characteristics at low brightness is large.)

This tablet has the ability to correct the color balance by adjusting the intensities of the three primary colors.

Which is what we tried to do. The result is data signed as Corr. in the graphs above. As a result, we significantly reduced ΔE and set the white point to 6500 K:

However, at the same time, the maximum brightness decreased to 316 cd / m², and the contrast decreased accordingly, and such a correction did not reduce the oversaturation of colors.

If the image on the screen of this tablet still seems insufficiently saturated and juicy to someone, then you can turn on the proprietary mode X-Reality for mobile... In this mode, the saturation and contour sharpness are programmatically increased, and there are fewer distinguishable gradations in the area of saturated colors. There is Extreme brightness mode in which the color contrast is further enhanced.

Let's show alternately (you need to click on the pictures) all three modes on the test image:

Turn off:

Let's summarize. The brightness adjustment range of this screen is wide, and with anti-glare properties everything is in order, which allows comfortably use the tablet both on a sunny day outside and in complete darkness... It is acceptable to use mode with automatic brightness adjustment, which works absolutely adequately... The advantages also include an effective oleophobic coating, no flicker and no air gap in the layers of the screen, good black field uniformity and high contrast. The disadvantages - strong lightening of black color when the gaze deviates from the perpendicular to the screen surface... The color rendition is bad, because oversaturated colors (especially skin tones) and the color temperature is very high... The presence of appropriate adjustments allows you to correct the balance to almost ideal, but at the expense of a significant decrease in brightness and contrast, and the problem with oversaturated colors still remains. Taking into account the importance of characteristics for this particular class of devices (and the most important thing is the distinguishability of information in a wide range of external conditions) the screen quality can be considered high... However, for those who want to watch movies and watch / show photos on a tablet, we advise you to refrain from buying devices with a Triluminos screen, at least until Sony introduces a mode with sRGB coverage (and judging by trends, it is more likely , will close the mobile unit, which will do everything right).

Operating system

Sony Xperia Z4 Tablet runs on Google Android 5.0.2 operating system. During testing, we used the base firmware build 28.0.A.267, for which no updates were received. Of the 32 GB of internal memory, only 22.2 GB is available to the user, that is, almost a third is consumed by the system. And this, apparently, is the "merit" of the firmware itself, since the set of preinstalled software is small.

Sony limited itself to working on a proprietary interface in accordance with the requirements of "material design". Otherwise, the manufacturer did not bring anything new to the interface, adopting standard Lollipop elements.

Among the interesting software is an exclusive version of the Garmin for Xperia navigator, FM radio and, of course, the proprietary Remote Play service, which allows you to wirelessly broadcast game content from the Playstation 4 directly to the tablet. We talked about its work in the review of the Xperia Z3 Tablet Compact.

The operation of the operating system deserves no comment. It takes approximately 35 seconds for the tablet to turn on.

Platform and performance

The Sony Xperia Z4 Tablet is powered by Qualcomm's most powerful SoC, the Snapdragon 810. It is popular among flagship mobile devices; we've already seen it on the HTC One M9 and the LG G Flex 2.

This single-chip system includes eight processor cores combined with ARM big.LITTLE technology. For demanding tasks, it uses four Cortex-A57 cores (ARMv8-A architecture), accelerating up to 2 GHz. In more benign scenarios, four energy-efficient Cortex-A53 cores (also ARMv8-A architecture) are used. There is support for a 64-bit instruction set. Responsible for the graphics is the Adreno 430, the most powerful of Qualcomm's GPUs. Snapdragon 810 was unveiled at CES 2015 in January, and you can also read more about it in the report from the exhibition.

The single-chip system is complemented by 3 GB of RAM and 32 GB of permanent memory - here Sony also did not save, but did not bring surprises either. Of course, the most interesting thing will be to compare the performance of the Z4 Tablet with the iPad Air 2, but the Samsung Galaxy tablets should not be written off in advance either.

In browser tests, the victory remains with the Z4 Tablet, although the lag behind the latest iPad Air 2 is negligible. Analogs on Android are far behind, the high frequency of their processors does not help out.

Strangely, MobileXPRT, which is generally credible, rated the Z4 Tablet's performance as the worst. In Antutu, the tablet confidently surpassed the mark of fifty thousand, being almost one and a half times faster than competitors. And in 64-bit mode it turned out even more - 56482 points.

In the multiplatform Geekbench 3, our hero also leaves the bulk of the competition far behind. But here the iPad Air 2 enters the competition, which is ahead of the Z4 Tablet by the same indicative lead. The line with the results of Geekbench 3 clearly demonstrates: happiness is not in megahertz.

Let's now turn to the gaming benchmarks.

	Sony Xperia Z4 Tablet (Qualcomm Snapdragon 810)	Sony Xperia Z2 Tablet (Qualcomm Snapdragon 801)	Samsung Galaxy Tab S 10.5 (Samsung Exynos 5 Octa)	(Samsung Exynos 5 Octa)	Apple iPad Air 2 (Apple A8X)
Epic Citadel (Ultra High Quality)	53.1 fps	53.4 fps	52.6 fps	26.0 fps	-
GFXBench T-Rex HD (Onscreen)	33.7 fps	27.3 fps	14 fps	14 fps	52.5 fps
GFXBench T-Rex HD (Offscreen)	48.6 fps	27.5 fps	22.9 fps	23 fps	70.6 fps
3DMark Ice Storm Extreme	Maxed out!	Maxed out!	9159	8732	Maxed out!
3DMark Ice Storm Unlimited	23919	19114	13451	13601	21768
Bonsai benchmark	4028 (57.5 fps)	3767 (53.8 fps)	-	-	-

Tests confirm the advantage of the novelty on the Snapdragon 810 “among its own”. This is especially noticeable when scenes are played at the same resolution. As for the iPad Air 2, here the victory remains with the Apple product: it more than compensates for a very slight lag in browser benchmarks and synthetic 3DMark due to Geekbench 3 and GFXBench, which are more credible.

Now let's start real games.

Modern Combat 5: Eclipse	works fine
Call of Duty: Strike Team	strongly slows down
Asphalt 8: Airborne	works fine
N.O.V.A. 3	works with artifacts
Dead trigger 2	works fine, high settings
GTA: San Andreas	works fine, maximum settings
Need for Speed: No Limits	works fine
Assassin's Creed: Pirates	does not work
Deux Ex: The Fall	works fine
World of Tanks: Blitz	works fine

We didn't expect to run into so many compatibility issues. Call of Duty not only takes a long time to load, but also slows down a lot, not allowing you to play normally. Assassin's Creed starts, but does not respond to pressing. N.O.V.A. 3 works very smoothly and the only issue is that the information about the current weapon is not displayed in the upper right corner. The Xperia Z4 Tablet could have shot like a powerful and lightweight gaming tablet, but alas it failed. Perhaps all these problems arose due to the fact that we had an engineering sample for testing.

Below is a thermal image of the rear surface taken after a 10 minute battery test in GFXBenchmark:

It can be seen that the heating is localized in the upper part of the device, approximately under the front camera, which, apparently, corresponds to the location of the SoC chip. Heating is not point-like, which indicates the use of elements that distribute heat. According to the heat chamber, the maximum heating was 44 degrees.

Video playback

Additionally, the MHL interface was tested. To test it, we used a monitor ViewSonic VX2363Smhl that supports direct MHL connection (in version 2.0) using a passive Micro-USB to HDMI adapter cable. In this case, the MHL output was carried out at a resolution of 1920 by 1080 pixels with a frequency of 60 fps. Regardless of the actual orientation of the tablet, the display of the image on the screens of the tablet and the monitor is carried out only in landscape orientation with the connector on the tablet to the right. In this case, the image on the monitor is exactly inscribed in the boundaries of the display area in height and repeats one to one the image on the tablet screen in the version of interpolation from 2560 × 1600 to 1728 × 1080 pixels, that is, with vertical black stripes on the sides:

Traditionally, in the case of Sony, the tablet connected via MHL can act as a remote control for the TV, if the latter supports this function. MHL audio is output and is of good quality. At the same time, sounds are not output through the loudspeaker of the tablet itself, and the volume is not regulated by the buttons on the tablet case, but is turned off. In our case, the tablet with the MHL adapter connected, judging by the charge indicator, was charging (but, in fact, it was rather discharged).

Then, using a set of test files with an arrow and a rectangle moving one division per frame (see "Testing methods for video playback and display devices. Version 1 (for mobile devices)"), we checked how the video is displayed on the tablet screen. Screenshots with an exposure of 1 s helped to determine the nature of the frame output of video files with various parameters: the resolution varied (1280 × 720 (720p), 1920 × 1080 (1080p) and 3840 × 2160 (4K) pixels) and the frame rate (24, 25, 30, 50 and 60 fps). In our tests, we used the MX Player video player in the "Hardware" mode. The results of this (block labeled "Tablet Screen") and the following test are tabulated:

File	Uniformity	Skips
Tablet screen
4K / 30p	Okay	No
4K / 25p	Okay	No
4K / 24p	Okay	No
1080 / 60p	Okay	few
1080 / 50p	Okay	No
1080 / 30p	Okay	No
1080 / 25p	Okay	No
1080 / 24p	Okay	No
720 / 60p	Okay	lot
720 / 50p	Okay	few
720 / 30p	Okay	No
720 / 25p	Okay	No
720 / 24p	Okay	No
MHL (monitor output)
4K / 30p	Okay	No
4K / 25p	Okay	No
4K / 24p	Okay	No
1080 / 60p	Great	No
720 / 24p	Okay	No

Note: If both columns Uniformity and Skips green ratings are set, this means that, most likely, when watching movies, artifacts caused by uneven alternation and skipping of frames will either not be visible at all, or their number and visibility will not affect the viewing comfort. Red marks indicate possible problems with the playback of the respective files.

According to the criterion for outputting frames, the quality of video playback on the screen of the tablet itself is good, since frames (or groups of frames) may output with a more or less uniform alternation of intervals and without skipping frames, with the exception of files with 50 and 60 fps, in which case, with a high probability, some frames will be skipped. In comparison with the same Sony Xperia Z3 Tablet Compact, we have a degradation of quality, apparently due to unoptimized software. The displayed range of brightness is equal to the standard range of 16-235, in shadows and highlights all gradations of shades are displayed. When playing video files with a resolution of 1920 by 1080 pixels (1080p), the image of the video file itself is displayed exactly along the wide border of the screen, with inevitable interpolation in this case.

With a monitor connected via MHL, during video playback, an exact copy of the tablet screen is displayed on the monitor, that is, again with black stripes on the sides. Full HD clarity is, alas, not achievable. The brightness range displayed on the monitor is the standard range of 16-235. The results of the monitor output tests are shown in the table above in the "MHL (monitor output)" block. Output quality is no better than on your own screen.

The conclusion is typical: an MHL connection can be used for games, watching movies, displaying web pages and other activities that benefit from an increase in screen size, but only with black bars on the sides from above, well, or the picture will have to be cropped by choosing the appropriate mode).

Wireless support and OTG mode

Sony Xperia Z4 Tablet is available in two versions with different support for mobile networks. We tested a more expensive modification (SGP771RU), where this support is present. Users have at their disposal the current GSM, WCDMA bands, as well as fast LTE Cat 6. Using the tablet, you can also make calls and send SMS using standard Xperia applications.

You can set up an answering machine through the operating system. The numeric keypad supports search by Smart Dial name, and the alphabetic keypad supports continuous entry.

Calls are made in speakerphone mode. The timbre of the interlocutor's voice remains recognizable, there are no problems with speech transmission.

Internet access is also possible via dual-band Wi-Fi 802.11a / b / g / n / ac (with MIMO). Sony Xperia Z4 Tablet, like other solutions based on Qualcomm Snapdragon, is distinguished by fast operation of GPS, Glonass and Chinese BDS. Positioning occurs in a matter of seconds after turning on the navigation. In addition, Bluetooth 4.1 is on the list of wireless modules.

Support for connecting external drives via USB OTG is declared on the official website, but for some reason it is not implemented on our copy. Perhaps because we were dealing with an engineering sample.

Cameras

The camera resolution of the Z4 Tablet is 8.1 and 5.1 megapixels. Their work was commented on by Anton Soloviev.

This camera allows you to take very good pictures, even by the standards of smartphones. Excellent sharpness and moderate software processing add up to a pleasing image. Also, one cannot fail to note good detail on different plans, despite the low resolution. Although the camera spoils the thin lines a little with software processing, it is noticeable only at high magnification.

As a result, the camera is well suited for various scenes, even if someone seriously decides to shoot with a tablet.

The camera can shoot video in Full HD format. An example video is shown below.

The video is of sufficient quality. Freezes are sharp despite the average frame rate.

Autonomous work

The Sony Xperia Z4 Tablet has a battery with the same capacity as the Sony Xperia Z2 Tablet. The advantage of the new tablet is that, unlike the Z2 Tablet, which had only four powerful cores, there are also four energy efficient ones. ARM big.LITTLE technology allows you to quickly switch between these quartets, based on the resource intensity of the tasks.

	Sony Xperia Z4 Tablet (Qualcomm Snapdragon 810)	Sony Xperia Z2 Tablet (Qualcomm Snapdragon 801)	Samsung Galaxy Tab S 10.5 (Exynos 5 Octa)	Samsung Galaxy Note 10.1 (2014) (Samsung Exynos 5 Octa)	iPad Air 2 (Apple A8X)
Battery capacity (mAh)	6000	6000	7900	8220	7340
Reading mode (brightness 100 cd / m²)	16 h 40 min (Moon + Reader, auto scrolling	14 h 30 min	about 12 hours	15 h	about 13 h
720p video playback (100 cd / m² brightness)	14h (MX Player over network)	10 h 30 min (Youtube)	about 9 h (Youtube)	9 h 50 min (Youtube)	about 11 h 20 min (Youtube)
Epic Citadel Guided Tour (100 cd / m² brightness)	6 h 34 min	7 h	6 h 40 min	4 h 30 min	a little over 6 hours

The battery life clearly shows in which scenario the Cortex-A57 worked and in which the Cortex-A53. The use of the latter allowed the Z4 Tablet to outperform all competitors in reading and playing videos. The battery life in the gaming test is also good - worse than the Z2 Tablet, but better than the iPad Air 2 (with a lower battery capacity).

The tablet came to us for testing without a charger, so we did not measure the charge recovery time.

conclusions

Sony Xperia Z4 Tablet did not disappoint expectations and turned out exactly as we are used to seeing Xperia tablets - with an excellent design, a quality screen and camera, as well as a powerful processor. But it was not without an unexpected fly in the ointment. Compatibility with games leaves much to be desired, and we hope that this flaw is associated with our specific sample or, in extreme cases, will be eliminated by firmware updates (as well as problems with video playback at high frame rates). Alas, software cannot be saved from the low stability of black color when the gaze deviates from the perpendicular to the screen. Also, the Z4 Tablet excelled in battery life, plugging all competitors into the belt.

Today we are dealing with the most perfect tablet (at least in the Android segment) in terms of the totality of all characteristics, and competitors will have to try to take over the palm. Although looking at the news feeds of the market, which are full of exclusively budget devices, you begin to doubt that there will be such competitors at all.

Sony Xperia Z4 (Z3 +) price:

Description of the smartphone Xperia Z4

Exactly a year ago, the Japanese company Sony introduced its new flagship under the non-standard name Xperia Z3 +, although for the international market, this model was consecrated as the Xperia Z4. In order not to be confused with these names, in our description we will call the smartphone in the international version.

One of the main features of a smartphone is the main camera. It has a built-in 20-megapixel sensor, a 2.0 aperture lens and a 1.12 µm pixel size on the matrix. The device can shoot video in 4K resolution at 30 frames per second. The front camera for video calls or selfies has 5.1 megapixels.

As for the screen, here the Japanese manufacturer installed its own IPS display with proprietary technologies such as Triluminos display and X-Reality Engine. It has a resolution of 1080x1920 pixels and a diagonal of 5.2 inches. It should be noted that the screen is protected by tempered glass.

The internal stuffing of the Xperia Z4 is the eight-core Snapdragon 810 processor, where two pairs of 4 cores work, 32 GB of internal memory for storing files and 3 GB of RAM. Also, this gadget has the ability to install additional memory in the form of a microSD card.

The company is positioning the smartphone as a flagship model. Accordingly, the price for this gadget will not be very low. All shops where you can buy this model can be found under the main picture.

Video review Sony Xperia Z4 (Z3 +):

Information about the brand, model and alternative names of a specific device, if any.

Design

Information about the dimensions and weight of the device, presented in different units of measurement. Used materials, offered colors, certificates.

Width Width information - refers to the horizontal side of the device in its standard orientation during use.	72 mm (millimeters) 7.2 cm (centimeters) 0.24 ft (feet) 2.83 in (inches)
Height Height information - refers to the vertical side of the device in its standard orientation during use.	146 mm (millimeters) 14.6 cm (centimeters) 0.48 ft (feet) 5.75 in (inches)
Thickness Information about the thickness of the device in different units of measurement.	6.9 mm (millimeters) 0.69 cm (centimeters) 0.02 ft (feet) 0.27 in (inches)
Weight Information about the weight of the device in different units of measurement.	144 g (grams) 0.32 lbs (pounds) 5.08 oz (ounces)
Volume The approximate volume of the device, calculated based on the dimensions provided by the manufacturer. Refers to devices with a rectangular parallelepiped shape.	72.53 cm³ (cubic centimeters) 4.4 in³ (cubic inches)
Colors Information about the colors in which this device is offered for sale.	Black White Green Copper
Materials for the manufacture of the case Materials used for the manufacture of the device body.	Aluminium alloy Glass
Certification Information about the standards by which this device is certified.	IP58 IP68

SIM card

A SIM card is used in mobile devices to store data that certifies the authenticity of mobile service subscribers.

Mobile networks

A mobile network is a radio system that allows multiple mobile devices to communicate with each other.

Gsm GSM (Global System for Mobile Communications) is designed to replace the analog mobile network (1G). For this reason, GSM is often referred to as a 2G mobile network. It is enhanced by the addition of GPRS (General Packet Radio Services) and later EDGE (Enhanced Data rates for GSM Evolution) technologies.	GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz
UMTS UMTS stands for Universal Mobile Telecommunications System. It is based on the GSM standard and refers to 3G mobile networks. Developed by 3GPP and its biggest advantage is to provide more speed and spectral efficiency thanks to W-CDMA technology.	UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz
LTE LTE (Long Term Evolution) is defined as a fourth generation (4G) technology. It is developed by 3GPP based on GSM / EDGE and UMTS / HSPA with the aim of increasing the capacity and speed of wireless mobile networks. The subsequent development of technologies is called LTE Advanced.	LTE 800 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE 700 MHz (B28)

Mobile technology and data rates

Communication between devices in mobile networks is carried out using technologies that provide different data transfer rates.

Operating system

An operating system is the system software that controls and coordinates the operation of hardware components in a device.

SoC (System on Chip)

A system on a chip (SoC) integrates all the major hardware components of a mobile device into a single chip.

SoC (System on Chip) A system on a chip (SoC) integrates various hardware components such as a processor, graphics processor, memory, peripherals, interfaces, etc., as well as the software required for their operation.	Qualcomm Snapdragon 810 MSM8994
Technological process Information about the technological process by which the chip is manufactured. The value in nanometers is half the distance between the elements in the processor.	20 nm (nanometers)
Processor (CPU) The main function of the processor (CPU) of a mobile device is to interpret and execute instructions contained in software applications.	4x 2.0 GHz ARM Cortex-A57, 4x 1.5 GHz ARM Cortex-A53
Processor size The capacity (bits) of the processor is determined by the size (in bits) of registers, address buses and buses for data. 64-bit processors offer better performance than 32-bit processors, which in turn are more efficient than 16-bit processors.	64 bit
Instruction set architecture Instructions are commands with which the software sets / controls the processor. Information about the instruction set (ISA) that the processor can execute.	ARMv8-A
Level 0 cache (L0) Some processors have L0 (level 0) cache memory, which can be accessed faster than L1, L2, L3, etc. The advantage of having such memory is not only higher performance, but also lower power consumption.	4KB + 4KB (kilobytes)
Level 1 cache (L1) The cache memory is used by the processor to reduce the time it takes to access more frequently used data and instructions. L1 (level 1) cache is small and much faster than both system memory and other levels of cache. If the processor does not find the requested data in L1, it continues to look for it in the L2 cache. On some processors, this search is performed simultaneously in L1 and L2.	16 KB + 16 KB (kilobytes)
L2 cache L2 (level 2) cache is slower than L1, but instead has a larger capacity to cache more data. It, like L1, is much faster than system memory (RAM). If the processor does not find the requested data in L2, it continues to look for them in L3 cache memory (if available) or in RAM memory.	2048 KB (kilobytes) 2 MB (megabytes)
Number of processor cores The processor core executes program instructions. There are processors with one, two or more cores. Having more cores increases performance by allowing multiple instructions to execute in parallel.	8
CPU clock speed The clock speed of a processor describes its speed in cycles per second. It is measured in megahertz (MHz) or gigahertz (GHz).	2000 MHz (megahertz)
Graphics processing unit (GPU) A graphics processing unit (GPU) handles computation for a variety of 2D / 3D graphics applications. In mobile devices, it is most commonly used by games, consumer interfaces, video applications, and more.	Qualcomm Adreno 430
GPU clock speed Speed is the clock speed of the GPU and is measured in megahertz (MHz) or gigahertz (GHz).	650 MHz (megahertz)
The amount of random access memory (RAM) Random access memory (RAM) is used by the operating system and all installed applications. The data that is saved in the RAM is lost after the device is turned off or restarted.	3 GB (gigabytes)
Memory type (RAM) Information about the type of random access memory (RAM) used by the device.	LPDDR4
Number of RAM channels Information about the number of RAM channels which are integrated into the SoC. More channels means higher data rates.	Two-channel
RAM frequency The frequency of the RAM determines its speed of operation, more specifically, the speed of reading / writing data.	1600 MHz (megahertz)

Built-in memory

Each mobile device has built-in (non-removable) fixed memory.

Memory cards

Memory cards are used in mobile devices to increase the storage space for data.

Screen

The screen of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type / technology One of the main characteristics of the screen is the technology by which it is made and on which the image quality of information directly depends.	IPS
Diagonal On mobile devices, screen size is expressed in terms of the length of its diagonal, measured in inches.	5.2 in (inches) 132.08 mm (millimeters) 13.21 cm (centimeters)
Width Approximate screen width	2.55 in (inches) 64.75 mm (millimeters) 6.48 cm (centimeters)
Height Approximate screen height	4.53 in (inches) 115.12 mm (millimeters) 11.51 cm (centimeters)
Aspect ratio The aspect ratio of the long side of the screen to its short side	1.778:1 16:9
Permission Screen resolution shows the number of pixels horizontally and vertically on the screen. Higher resolution means sharper image detail.	1080 x 1920 pixels
Pixel density Information about the number of pixels per centimeter or inch of the screen. Higher density allows information to be shown on the screen in clearer detail.	424 ppi (pixels per inch) 166 ppcm (pixels per centimeter)
Color depth Screen color depth reflects the total number of bits used for color components in one pixel. Information about the maximum number of colors that the screen can display.	24 bit 16777216 flowers
Screen footprint The approximate percentage of the display area on the front of the device.	71.14% (percent)
Other characteristics Information about other functions and features of the screen.	Capacitive Multitouch Scratch resistant

Sensors

Different sensors perform different quantitative measurements and convert physical metrics into signals that can be recognized by the mobile device.

Rear camera

The main camera of a mobile device is usually located on its rear panel and can be combined with one or more additional cameras.

Sensor model	Sony IMX220 Exmor RS
Sensor type Information about the type of camera sensor. Some of the most widely used sensor types in mobile cameras are CMOS, BSI, ISOCELL, and others.	CMOS (complementary metal-oxide semiconductor)
Sensor size Information about the dimensions of the photosensor used in the device. Typically, cameras with a larger sensor and lower pixel density offer higher image quality despite lower resolution.	6.17 x 4.55 mm (millimeters) 0.3 in (inches)
Pixel size Pixels are usually measured in microns. Larger pixels are capable of capturing more light and therefore provide better low-light performance and a wider dynamic range than smaller pixels. On the other hand, smaller pixels allow for higher resolution while maintaining the same sensor size.	1.176 μm (micrometers) 0.001176 mm (millimeters)
Crop factor The crop factor is the ratio between the size of a full-frame sensor (36 x 24 mm, equivalent to a frame of standard 35 mm film) and the size of the device's photo sensor. The number shown is the ratio of the diagonals of a full-frame sensor (43.3mm) to that of a specific device.	5.64
ISO (light sensitivity) The ISO value / speed indicates the sensor's sensitivity to light. Digital camera sensors operate within a specific ISO range. The higher the ISO speed, the higher the sensor's sensitivity to light.	50 - 12800
Light-strength Aperture (also known as aperture, aperture, or f-number) is a measure of the size of the lens aperture, which determines the amount of light entering the sensor. The lower the f-number, the larger the aperture and the more light reaches the sensor. Usually, the f-number is indicated, which corresponds to the largest possible aperture of the aperture.	f / 2
Flash type The rear (rear) cameras of mobile devices mainly use LED flashes. They can be configured with one, two or more light sources and vary in shape.	LED
Image Resolution	5248 x 3936 pixels 20.66 MP (megapixels)
Video resolution	3840 x 2160 pixels 8.29 MP (megapixels)
	30 frames / sec (frames per second)
Specifications Information about additional software and hardware features of the rear (rear) camera.	Autofocus Burst shooting Digital zoom Digital image stabilization Geographic tags Panoramic shooting HDR shooting Touch focus Face recognition Adjusting the white balance ISO setting Exposure compensation Self-timer Scene selection mode Macro mode
	1080p @ 60 fps 720p @ 120 fps

Front-camera

Smartphones have one or more front cameras of different designs - pop-up camera, PTZ camera, notch or hole in the display, camera under the display.

Sensor model Information about the make and model of the sensor used by the camera.	Sony Exmor R
Focal length The focal length indicates the distance in millimeters from the sensor to the optical center of the lens. Equivalent focal length (35mm) is the focal length of a mobile device camera, equated to the focal length of a 35mm full-frame sensor, at which the same angle of view will be achieved. It is calculated by multiplying the real focal length of the mobile device camera by the crop factor of its sensor. The crop factor can be defined as the ratio between the diagonals of a 35mm full-size sensor and a mobile device sensor.	25 mm (millimeters) * (35 mm / full frame)
Image Resolution Resolution is one of the main characteristics of cameras. It represents the number of horizontal and vertical pixels in the image. For convenience, smartphone manufacturers often quote resolutions in megapixels, indicating the approximate number of pixels in millions.	2592 x 1944 pixels 5.04 MP (megapixels)
Video resolution Information about the maximum video resolution that the camera can record.	1920 x 1080 pixels 2.07 MP (megapixels)
Video recording rate (frame rate) Information about the maximum recording rate (frames per second, fps) supported by the camera at maximum resolution. Some of the most basic video recording speeds are 24 fps, 25 fps, 30 fps, 60 fps.	30 frames / sec (frames per second)

Audio

Information about the type of speakers and audio technology supported by the device.

Radio

The radio of the mobile device is a built-in FM receiver.

Locating

Information about the navigation and positioning technologies supported by the device.

Wi-Fi

Wi-Fi is a technology that enables wireless communication for transferring data over short distances between various devices.

Bluetooth

Bluetooth is a standard for secure wireless transfer of data between different types of devices over short distances.

Version

There are several versions of Bluetooth, each of which improves communication speed, coverage, and makes it easier to find and connect devices. Information about the Bluetooth version of the device.

4.1

Specifications

Bluetooth uses different profiles and protocols to enable faster communication, energy savings, better device discovery, and more. Some of these profiles and protocols that the device supports are shown here.

A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio / Visual Remote Control Profile)
DIP (Device ID Profile)
GAP (Generic Access Profile)
GATT (Generic Attribute Profile)
HDP (Health Device Profile)
HFP (Hands-Free Profile)
HID (Human Interface Profile)
HSP (Headset Profile)
MAP (Message Access Profile)
OPP (Object Push Profile)
PAN (Personal Area Networking Profile)
PBAP / PAB (Phone Book Access Profile)
SPP (Serial Port Protocol)

USB

USB (Universal Serial Bus) is an industry standard that allows different electronic devices to exchange data.

HDMI

HDMI (High-Definition Multimedia Interface) is a digital audio / video interface that replaces older analog audio / video standards.

Headphone jack

This is an audio connector, which is also called an audio connector. The most widely used standard in mobile devices is the 3.5mm headphone jack.

Connecting devices

Information about other important connection technologies supported by the device.

Browser

A web browser is a software application for accessing and viewing information on the Internet.

Browser

Information about some of the main features and standards supported by the device browser.

Html
HTML5
Flash
CSS 3

Audio file formats / codecs

Mobile devices support different audio file formats and codecs, which respectively store and encode / decode digital audio data.

Video file formats / codecs

Mobile devices support different video file formats and codecs, which respectively store and encode / decode digital video data.

Battery

Mobile device batteries differ in their capacity and technology. They provide the electrical charge required for their function.

Capacity Battery capacity indicates the maximum charge it can store, measured in milliampere-hours.	2930 mAh (milliampere-hours)
A type The type of battery is determined by its structure and, more precisely, by the chemicals used. There are different types of batteries, with the most common mobile devices using lithium-ion and lithium-ion polymer batteries.	Li-polymer
Talk time 2G Talk time in 2G is the period of time during which the battery charge is completely discharged during continuous talk on a 2G network.	12 h (hours) 720 min (minutes) 0.5 days
Standby time 2G Standby time in 2G is the period of time during which the battery charge is completely discharged when the device is in stand-by mode and connected to a 2G network.	580 h (hours) 34800 min (minutes) 24.2 days
Talk time 3G Talk time in 3G is the period of time during which the battery charge is completely discharged during a continuous conversation on a 3G network.	17 h (hours) 1020 min (minutes) 0.7 days
3G standby time Standby time in 3G is the period of time during which the battery is completely discharged when the device is in stand-by mode and connected to a 3G network.	590 h (hours) 35400 min (minutes) 24.6 days
4G standby time 4G standby time is the period of time during which the battery is completely discharged when the device is in stand-by mode and connected to a 4G network.	540 h (hours) 32400 min (minutes) 22.5 days
Specifications Information about some additional characteristics of the device's battery.	Non-removable

The BMW company has been actively updating its old cars lately and is very active in the market. This is a very good position for both the business and the audience. Today we will discuss the new, third generation BMW Z4 2109 in the back of the G29.

The roadster was presented at the Pebble Beach Concours d'Elegance in California, and the world premiere for the automotive market took place in October in Paris. The release of the model just complements the line of most of the updated models, the roadster fits into it as it should.

Updated design

The visual part of the car has changed a lot compared to that. The car has become more aggressive and attracted to the new style of the Bavarian brand, especially it is similar to.

The long, sculpted front bonnet comes down to a new bumper. The body kit itself creates a catchy aggressive look due to massive air intakes with small fog lights integrated into them. The classic radiator grille has moved to the bumper, now it is much larger and has acquired point chrome elements like that of a Mercedes.

The new LED-based optics stand out. The headlights are large, but they add aggression. The side lights and high beam section of the Z4 are now vertical, which was not the case before.

From the side, the gaze immediately falls on the embossed line running from the lower part of the front arch of the BMW Z4 to the beginning of the taillights. A huge gill near the front arch adds a sporty style. Air from the front air intake passes through the gills, this removes turbulence, cools the braking system and reduces the drag coefficient.

The roof, unfortunately for the majority, is soft. Of course it is more convenient, it is better for speed, but visually, a roadster with a raised soft roof does not look very good. The lid can be raised and lowered in 10 seconds, and the maximum speed at which it can be done is 50 km / h.

The rear is rendered very cool, the bumper attracts special attention. The rear apron of the BMW Z4 G29 features massive vertical air outlets. Huge exhaust pipes are seen below. The shape of the trunk is made taking into account aerodynamics, a so-called spoiler is formed, on which a wide brake signal is duplicated. Thin optics look very stylish, similar to those installed on.

Body dimensions:

length - 4324 mm;
width - 1864 mm;
height - 1304 mm;
wheelbase - 2470 mm;
ground clearance - 117 mm.

Design customization

The car can be changed externally, there are many options for improvement, that is, it will be unrealistic to meet two completely similar Bavarian roadsters in the future. There are several classic design variations: Sport Line; M Sport; M40i. You can see the difference in the photo below.

You can make various elements of the body glossy black, the so-called Shadow Line, or it can be pulled over the radiator grill. The retractable roof can be painted optionally in a softer color rather than black.

There are also different body colors:

White;
orange metallic;
red metallic;
metallic blue;
black metallic;
gray metallic.

The coolest thing is that all the colors are still free, except for the last one, for which you will have to pay as much as 204,000 rubles.

Brand salon BMW Z4 2019

Why branded? Because its design is familiar to every owner of any new BMW model. If everything is clear with the fifth X, and with the 8-Series too, then exactly the same interior can be found in. This is a normal practice for the Bavarians and it is stupid to condemn it.

You will be seated on electrically adjustable leather sports seats. There are only two seats, it is not worth doing 4 for the sake of getting into another class, thanks to this there is enough free space for two, and we are talking about a roadster.

The pilot's hands will rest on a classic 3-spoke leather steering wheel with gear paddles and controls for the instrument cluster, media and head-up display. The instrument cluster is completely electronic - a 5.7-inch display that displays absolutely everything you want.

The BMW Live Cockpit is a mixture of two displays, namely the instrument cluster and an 8.8-inch display in the center console. All this works on the BMW 7.0 operating system, everything is touch-sensitive, there is voice control, gesture control and an iDrive controller.

On the center console of the BMW Z4, under the display, there is another small one, between the chrome air deflectors. This monitor shows data from a 2-zone climate control, which needs to be adjusted with a strip of stylish buttons under the deflectors. Difficult to describe? A glance at the photo will immediately make it clear what we are about.

The tunnel is partially made of aluminum with a carbon look. There is a niche with a cigarette lighter, a brand new gear selector, buttons for driving and engine start modes and an iDrive controller unit.

Salon customization

The salon is sheathed with Vernasca leather, the color of which you can choose, and free of charge:

Red;
white with black stitching;
black;
cognac color with black stitching;
black with blue stitching.

Ambient light with a choice of glow color will be installed throughout the cabin for additional money. There are 11 colors installed.

M Sport seats are also available as an option with integrated headrests that can be precisely adjusted to suit the body. This gives you perfect body retention for sporty riding.

The Harman Kardon Surround Sound system with 12 speakers throughout the cabin of the Z4 2019 and a 7-channel amplifier will also be installed as an option. The equalizer is automatic, it also adjusts the volume depending on the speed of movement.

Engines and gearbox

A type	Volume	Power	Torque	Overclocking	Maximum speed	Number of cylinders
Petrol	2.0 l	197 h.p.	320 H * m	6.6 sec.	240 km / h	4
Petrol	2.0 l	258 h.p.	400 H * m	5.4 sec.	250 km / h	4
Petrol	3.0 l	340 h.p.	500 H * m	4.5 sec.	250 km / h	6

The Roadster motor range consists of 3 petrol engines. The power is not as great as it might seem visually, but the dynamics will please.

The first 2-liter turbocharged unit provides 6.6-second acceleration to hundreds and 240 km / h top speed. The engine output is 197 horsepower at 4500 rpm and 320 H * m of torque at 1450 rpm.
The second installation is technically the same as the previous one, but there are some improvements. They allowed to squeeze out 258 horses and 400 H * m of torque. Due to this, the acceleration speed to hundreds was reduced to 5.8 seconds, and the maximum speed was electronically limited to 250 km / h.
Top-of-the-line for the M40i is the BMW TwinPower Turbo 3.0-liter inline-6 engine. The motor is equipped with the proprietary system Double-VANOS and Valvetronic due to which 340 horsepower and 500 H * m of torque were removed from it. It will be able to accelerate to a hundred with it in 4.5 seconds, the maximum speed of the BMW Z4 is also limited.

The only pair is the 8-speed Steptronic automatic transmission with close gear ratios. Torque is transmitted only to the rear axle via the M Sport differential, which is distributed to the rear wheels to optimize traction and vehicle stability.

Chassis

The car stands on a fully independent suspension from the CLAR platform, an optional adaptive M Sport suspension is installed with a lowering of 10 mm. Adaptive suspension implies additional buttons in the cabin to select the driving mode, along with this, the stiffness of the steering column changes. The steering is also adaptive with Servotronic.

The roadster is stopped by disc brakes with 4-piston fixed calipers. The discs on both axles are ventilated. Of course, the braking system is complemented by electronic assistants, for example, the classic ABS and EBD.

Price and configuration Z4 G29

Finally, the most interesting thing about such a car is its price tag. Three configurations are offered, which do not differ in internal equipment, you pay only for the engine.

Complete set:

SDrive20i - 3,190,000 rubles;
SDrive30i - 3,820,000 rubles;
M40i - 4,760,000 rubles.

In any configuration without options, you will have:

leather in the cabin;
Rear View Camera;
Cruise control;
front and rear parking sensors;
17-inch wheels;
heated front seats;
rain and light sensors;
LED optics without adaptation;
tire pressure sensor;
adaptive steering;
heated steering wheel.

You can also set a huge number of options with which the maximum roadster price tag will jump over 5.5 million rubles. List of options:

adaptive cruise control;
automatic parking system;
keyless entry to the salon;
18-inch wheels;
M Sport seats;
electrically adjustable seats with memory;
adaptive head optics;
automatic control of high beam headlights;
projection display;
wireless charger for smartphone;
Harman / Kardon audio system;
interior lighting system.

Conclusion from the review: the new BMW Z4 2019 turned out to be cool, like all the new products of the Bavarian manufacturer. The roadster is very cool, it will attract the eyes of passers-by, while it is relatively inexpensive. What do you think of the new product?