Special full screen Nubia Z17S detailed evaluation
Special full screen Nubia Z17S detailed evaluation

Full screen is an unstoppable trend in 2017. Almost all brands are upgraded at the end of the year, and Nubia's answer is Nubia Z17S. The combination of 5.73 inch 17:9 full screen and frameless, maintain the Snapdragon 835 and 1200W+2300W dual camera, add NeoCharge 2.5 fast charge, and provide 2999 yuan 6+64 black gold version and 3999 yuan 8+128 aurora blue version. The truly popular 6+64 version, with the price of one plus 5T and Glory V10 released a month later at the same price, how will Nubia perform in front of fierce competitors?

Appearance and workmanship

The packaging of Nubia Z17S has not changed, and the red and black kraft paper boxes are matched. Accessories include NeoCharge 2.5 flash charger, special Type-C charging cable, clip, manual and warranty.


The NeoCharge 2.5 fast charging head has a volume one full turn larger than the common charging head. The charging head and data line have more contacts than the common Type-A port. It supports 5V/5.2A output and the maximum power is 26W. What's more impressive is that the Z17S is also downward compatible with Qualcomm's QC fast charging.


Nubia Z17S tries to reduce the thickness of the upper and lower borders on the basis of no borders. Because of the introduction of the 17:9 screen, the fuselage will not be as chunky as Mate10. The most obvious part of the forehead is the dual 5 megapixel front camera. The light and distance sensors are located on both sides of the earpiece. The earpiece is relatively deep, which is easy to accumulate dust. After the chin narrows, the small red dot of the logo becomes a virtual button.


The Nubia Z17S is the only full screen mobile phone without a border. The border is much narrower than similar products, and the effect is very good.


The Nubia Z17S has changed from the all metal integrated body of the Z17 to a 3D glass rear cover, with a faint gloss under the black gold coating.


The rear cover glass has large area radians in four directions, the dual camera part has familiar red circle decoration, and the flash is set below the rear cover glass.


Nubia Z17S adopts the conventional settings of the left card slot, the right volume and the power button. It supports dual nano SIM cards and does not support micro SD card expansion.


The top and bottom are the main microphone and auxiliary microphone in a symmetrical position. The Type-C connector is not centered, which is a pity. The card slot of the tester we got is slightly lower than the border, but it fits closely. The springback of the keys is relatively clear, the virtual position is very small, and the overall workmanship of the machine is excellent.


Simple comparison with full screen mobile phones of the same generation. Left millet MIX 2, right hammer nut Pro 2.

Screen

Nubia Z17S adopts 5.73 inch 17:9 LTPS screen, made by JDI, video panel. After the upper and lower frames of the fuselage are narrowed, plus the original frameless Nubia, the overall effect is better. The measured maximum brightness is 440 nits, and the four corner brightness is between 430 nits and 400 nits. The screen color and brightness uniformity are good. However, this extreme brightness is very low in the LCD panel, and there will be slight pressure when you look directly at it in daylight.

The exclusive frameless design further thins the glass in this generation, but the thickness is still larger than that of ordinary mobile phones, and the screen brightness will change due to the angle. The biggest advantage of the Z17S screen is actually the LTPS itself. After all, it is IPS. The overall look and feel is good. It has crushed a large number of 18:9 AMOLED full screens in row P.


DCI-P3 color gamut covers 98.4%


SRGB color standard



DCI-P3 color standard

Nubia Z17S provides two display modes: "dazzle" and "nature". In developer mode, there is also sRGB mode. However, there is no difference between the two modes with the naked eye, and the sRGB mode cannot be opened. This bug, like the Z17, has not yet been fixed. The actual test results are also consistent with the naked eye. The gap between the two modes is so small that it can be considered as an error in the test process. I hope the official can repair it as soon as possible.

The color temperature is about 8500K at a brightness close to 100 nits in daily use, which is a typical cold screen. The system has its own temperature adjustment and eye protection mode. The contrast is about 1854:1, covering 98.4% of the P3 color gamut:

  • In sRGB color gamut, the average deltaE of 104 colors is 3.8, and the maximum is 6.5;

  • Under P3 color gamut, the average deltaE of 104 colors is 4.1, and the maximum deltaE is 7.1

The color accuracy performance is OK. As a contrast, in the sRGB color gamut, the average deltaE of iPhone 7 is 1.6, Note5 is 1.8, S6 edge+is 2.6, and S7 edge is 2.9.

The 17:9 screen ratio used by Z17S is a relatively compromise and conservative painless scheme. At first glance, it is no different from the traditional 16:9 screen. The extra area is just for the virtual key bar, so there is no adaptation problem such as 18:9 screen stretching and scaling.

System

Nubia Z17S is equipped with Nubia UI 5.1 based on Android 7.1.1. The system smoothness is close to Z17, and the response speed is still among the fastest. It's just that the consistency and delicacy of the transition animation and the system UI are ordinary, and there is no quick and delicate feeling of "one plus five".

 

The main features of Nubia UI are a large number of advanced functions for fans, rich camera settings, convenient split screen and borderless edge gesture operations (adjusting brightness, fast switching applications, etc.). Despite the aesthetic problems of default icons, many peers have not noticed many details, such as the photos in portrait mode will be automatically placed in different folders, and the rare edge anti touch setting in domestic systems.


Search box and folder for Gravity Down

On the Nubia Z17S, the system has made many modifications for the full screen. The common search bar, icon sorting direction, and buttons are all downward placed, which is very "gravity". The notification bar is triggered by downward strokes anywhere on the desktop. The advantage is that most scenes do not need to touch the top area, which is convenient for single hand operation, and the logic and shape are very fresh; The disadvantage is that when the operation button is set down, it will be squeezed together with the three King Kong virtual keys, increasing the chance of false touch. However, the advantages outweigh the disadvantages. It is much friendlier than those domestic ROMs with 18:9 full screen but no optimization.

Performance

Nubia Z17S is equipped with Snapdragon 835, which provides 6+64/8+128 versions, corresponding to the black gold version of 2999 yuan and the aurora blue color matching of 3999 yuan. Everyone is familiar with Snapdragon 835. Samsung 10nm FinFET LPE process, Kryo 280 architecture, 4 * 1.9GHz+4 * 2.46GHz, GPU is full of 710MHz Adreno 540. Previously, the core control of the Z17 Pentium made it one of the 835 models with the strongest performance.

 

CPU operation performance test


GPU graphics performance test


Flash memory read/write performance test

Originally, Z17 was also one of the strongest players in Snapdragon 835, but the CPU performance of Z17S still rose. The actual CPU performance broke the record of Snapdragon 835, and the performance was amazing. Of course, it is also possible that our test body is of excellent quality; GPU performance is not as bold as Z17, slightly down, but also better than the general Snapdragon 835 model; In terms of storage performance, although it is only 64G, the continuous read/write performance and 128G model have each other's victory or defeat. However, random read-write performance is average, just the normal level of the 64G model, which is far away from the PRO 7 of the same capacity (Huawei and OnePlus have F2FS file systems, and the performance of this part will be higher). Specific details can be stamped Aiganji branch library


The thermal stability is good. The room temperature is 24 degrees. The GFLOPS 8-core full open toaster test was carried out. After the frequency reduction, the small core 1.9G+large core 1.88G can be maintained all the time. Occasionally, the small core 1.2+large core 2.2 moment occurs. This frequency allocation has been maintained for nearly 9 minutes without significant change. At this time, the fuselage is just at the temperature and heat level.

Take photos

For the camera part, the main shot of Nubia Z17S is IMX362+IMX3181200W+2300W megapixel, unit pixel 1.4 μ m (1/2.55 ', full pixel dual core focusing)+1.0 μ m, aperture F1.8 (smaller than the F1.7 wide-angle often used by peers' IMX362)+F2.0, without optical anti shake and with iris algorithm. The front is double 5 million pixels, both of which are F2.2 aperture and 79.9 degrees wide angle. The sensor is a miniaturized OV5675, which is used by Xiaomi MIX and MIX 2.

In terms of photographing experience, the camera of Nubia Z17S has a very rich preset mode. The shutter button is equipped with a level gauge, and various parameter settings are very rich. There are automatic HDR and night view modes. The success rate of focusing is general, and it is a bit difficult to face the point light source. The focusing speed is fast, but it is slow in IMX362. The imaging speed is medium to low, and the film rate is medium to high in the machine without optical anti shake. The biggest slot in the experience is that manual focusing will still lead to overexposure.

PS: Click the picture to view the large picture

Daylight proof sheet


Bright HDR proof sheet


Light scene sample


Weak light proof sheet


Extremely weak light proof sheet

In fact, the Nubia Z17S automatic photometry and white balance are relatively accurate, which belongs to the relatively stable type of domestic machines. The contrast has been deliberately improved, the tolerance is good, the foundation of IMX362 is very stable, and the HDR effect is relatively natural. There is a certain degree of sharpening, and the extreme discrimination in the daytime is above the average, but after the light becomes worse, the application is too fierce, the light and weak light are weak, and the noise under the extremely weak light is not applied effectively, resulting in large-scale particle color patches, which have a general first impression.


In terms of dual camera, the Z17S rarely uses sub camera, which is a pity. The scheme is a bit similar to Huawei, but the sub shots that are both wide-angle are color, and the "zoom" is used for high pixel cutting. In terms of virtualization, the Z17S uses the main camera, and its performance is above average. The object matting is good, and the virtualization effect is good.

With the exception of a few models, the domestic flagship has experienced an overall regression after abandoning optical anti shake for dual photography this year. However, the photography of Nubia Z17S is slightly weaker than that of Xiaomi 6, Meizu PRO 6 and other domestic flagship ships. The detailed photography will be carried out in the subsequent photo comparison. Please pay attention.

Endurance&Charging

The Nubian Z17S is equipped with a 3100mAh battery, which is significantly smaller for mobile phones with 5.73 inch screens. After 30 minutes of large-scale tour (NBA 2K15), 30 minutes of wifi and 4G Internet access and 30 minutes of local video playback, a total of 2 hours of endurance test, the remaining power is 75%, slightly better than Meizu PRO 7 (mainly in the game part, the GPU energy efficiency ratio of Snapdragon 835 is much higher than that of MediaTek X30).

 

Charging node table


Charging capacity meter

Do you still remember that the Nubia Z17 was the first Qualcomm QC4/4+fast charging model, but until now, Qualcomm's charging head has not yet come out. The Nubia Z17S is replaced by NeoCharge 2.5 fast charge (26W). Its technical route is similar to OPPO VOOC/One Plus DASH flash charge/Huawei SuperCharge. The charging line and charging head are customized.

The actual charging speed is the highest in the whole field, 5% - 100% charging, 44% charging in 15 minutes, 76% charging in 30 minutes. More specifically, it starts to trickle down at about 80%, and it takes 1 hour and 8 minutes to fully charge. Although this has something to do with the small battery capacity, after conversion, the actual charging capacity still refreshed the record, and even the DASH flash charge was cut off.

 

In terms of heating, the room temperature is 25 degrees. After 20 minutes of NBA 2K15, the highest temperature on the front of the machine appears in the center near the top, which is about 41.1 degrees; The highest temperature on the back appears on the left side of the fingerprint identification button, which is about 40.1 degrees. The actual touch is warm, and the heating control is good.

Finally, we should mention the Z17S. The audio chip is still the WCD9335 of the previous generation Snapdragon 820/821 "official configuration", which does not break the curse of domestic 835 not upgrading WCD9341.

summary

Nubia Z17S is a very balanced product:

  • After narrowing the upper and lower borders, it works well with no borders. 17: Although the effect of the full screen is not as obvious as 18:9, there is no application adaptation problem;

  • Record breaking Snapdragon 835 CPU performance, active performance regulation and good heat control;

  • It does have a thoughtful overall screen optimization, a rare touch optimization in China, and the system bug lacks a sense of refinement;

  • In addition to Huawei/Glory, this year's photography of domestic flagship has gone backwards, and the photography has slightly improved, but only belongs to the domestic mainstream level;

  • The reduction of battery capacity leads to obviously weak endurance, but the fast charging speed is outstanding;

Nubia Z17S is a 6+64 version used for volume tracking, which is the same price as One Plus 5T and Glory V10. After one month's starting period, now it can only be regarded as having a win or lose relationship with the competitors and having different competition points. But this is really a mobile phone with intentions. At least it doesn't directly apply the appearance and components of the parent factory, and the hardware aesthetic has not regressed. Perhaps the biggest bottleneck is brand positioning and promotion.


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