Overview&Specifications:
Android 4.4.4 system, 64 bit quad core processor, 13 million pixel optical anti shake, 5.5 inch IPS screen.
Well, I'm not talking about a flagship phone, but the "affordable version" of a flagship phone, and this is Lenovo VIBE Z2.
Lenovo released two new products of VIBE series on IFA: Z2 and Z2 PRO, the latter has the mainstream configuration of today's flagship smart phones and a sky high price (4799 yuan) for a domestic mobile phone, so when Baidu entered VIBE Z2, the search results were all VIBE Z2 PRO, and even Lenovo's official mall could not find Z2, and Lenovo itself did not announce the price of Z2 through official channels, What's the rhythm?
Z2 in this evaluation is still Engineering machine Bugs in software and hardware are inevitable. I hope Lenovo can fix these problems when Z2 is officially launched.
Appearance&Layout:
The front of the Z2 is a 5.5 inch 720p IPS screen. There are three touch buttons at the bottom of the screen, all of which have backlights. However, the backlight is not only weak, but also has a short duration. First time users may not adapt to it, but they don't care after getting used to it.
On the left side of the fuselage is the MicroSIM card slot. The Z2 sent for test is a mobile 4G version, which supports dual cards. The card slot 1 supports TD-LTE/WCDMA/GSM, and the card slot 2 supports GSM.
On the right side of the fuselage are the power button with metal wire drawing decoration and the metal volume button with the same pattern as the fuselage. It is very elastic and has excellent hand feel. The power button in the middle is very convenient for users to operate.
3.5mm headphone connector on the top of the body.
There are MicroUSB data/charging interface and dual speakers at the bottom of the body. The speaker volume is very high, and it is not easy to be blocked when placed in this position, so there is no need to worry about missed calls.
The back is a whole brushed stainless steel panel, which has excellent hand feel. The 13 million pixel optical anti shake lens is located in the upper left corner, which has a high projection and is easy to wear. There are double LED fill lights and noise reduction microphones beside the camera.
The front frame of the VIBE Z2 is slightly wider, which is similar to the HTC M8S previously evaluated. For a phone with such a large screen, the frame should be as narrow as possible to facilitate daily use.
Screen:
Z2 uses a 5.5 inch 720p IPS screen and built-in screen display adjustment function. Although the color temperature set by the original factory is relatively cold, the color temperature displayed on the screen can be changed through the free adjustment function. The interface is simple, intuitive and very easy to use. Even new users can easily adjust it. The only disadvantage is that the interface is hidden deeply, It's not so easy to find.
Visual angle test:
The viewing angle of the Z2 screen is very good. Even in a large angle, there is no whitening. In addition, the Z2 screen does not have many common 45 ° angle whitening problems on the IPS screen.
The screen light leakage of Z2 is controlled very well, there is no light leakage around, and the backlight is even. When the above picture is taken, Z2 and NEXUS 5 have been adjusted to the maximum brightness, while the black color of Z2 is still very natural, which can be said to be very rare.
System:
Z2 runs Android 4.4.4 system, and its UI is deeply customized by Lenovo, adding many functions suitable for domestic users, such as call blacklist.
Drag bubbles on the lock screen to directly enter the corresponding APP, but the speed is very slow.
The home page supports customization.
Z2 has built-in Lenovo's own security software and application store; NFC applications allow users to write NFC tags themselves. After the tags are written, the phone can be adjusted to mute mode, or the application can be started or the website can be accessed with a single touch; The built-in music assistant is a software developed by Lenovo for data transmission.
Z2's built-in calendar software can synchronize with the cloud; When many manufacturers gave up the radio function, the Z2 still retained the radio function.
Press and hold the HOME button of Z2 to open the multitasking interface. The multitasking interface of Z2 is similar to the card type multitasking interface of iOS 7. Swipe up to close the background, and press the button below to close non system programs in the background.
In addition, the Z2 also supports a series of gesture operations: double clicking the screen to light up the screen, double clicking the HOME key to quickly snap shots, shaking the phone when the screen is lit to lock the screen, etc. The functionality is very good, but the Z2 sent for testing has a large delay in double clicking the screen and snapping shots, and cannot focus when snapping shots. I hope the retail version does not have such a problem.
photograph:
The main camera of the Z2 is 13 million pixels, which supports optical anti shake. There are also a variety of photographing modes to choose from.
The video recording function of Z2 is very simple. Only resolution and focusing mode are available for selection.
The level display can be turned on in the camera setting, which is very practical.
Photo proof:
The comparison model is Nexus 5 running on Android L LPV79. Because Nexus has no night view mode, in the night view comparison, Nexus turns on HDR+and VIBE Z2 turns on artistic night view mode.
Since Z2 is rarely equipped with an optical anti shake lens set, this photo will focus on the night scene performance of Z2.
From the EXIF information of the Z2 sample, we can easily find that despite the optical anti shake support of Z2, in order to shorten the shutter time as much as possible, the sensitivity has been improved to ISO 1600, and the direct result of this is that there are too many noise points in the picture. Lenovo's remedy for noise points is to smear noise, so finally, despite the 13 million pixels of Z2, However, the preservation of still life details in the proof is on the same level or worse than that of the Nexus 5 with 8 million pixels, and Z2 is not like many other manufacturers that use multi frame synthesis for noise reduction. Although this ensures the imaging speed, the image quality is only average, but compared with the HTC M8S without optical anti shake lens, It's better.
The restoration of the white balance of the Z2 night scene sample is relatively accurate, and the glare is well controlled. However, the color (especially green) is not full enough, and the brightness of the picture is flat. The effect can still be worthy of its positioning without magnification. The author here also hopes that Z2 can further improve the quality of photography, After all, the 13 million pixel optical anti shake lens is a very big highlight in the same level. Don't waste it.
HDR sample comparison:
In the first group of daytime HDR samples, The image color of Z2 is cold. The saturation of green becomes very bright from the lack of saturation in the night shot. The overall picture brightness is also very high. The picture is more beautiful than the Nexus 5 in the case of smooth light, while the Nexus 5 appears obviously red in the sky, and the picture is yellow as a whole, which is not as good as Z2 in appearance, but to be honest, neither of them can accurately restore the actual situation, It's just that Z2 is cold and N5 is warm.
In the second set of HDR samples with daytime backlight, the imaging of Z2 is a bit strange. Although the saturation of blue and green is pulled high as always, the highlights are severely overexposed, and purple edges appear in large areas. Although the details of the dark parts of the picture are well preserved, the overall picture is not as good as Nexus 5. However, the white balance of the Nexus 5 continues to play a stable role in its yellowing characteristics. In fact, it is not so yellow.
Comparison of daytime ordinary samples:
There is nothing to say about the ordinary daytime proof. The color of Z2 is greenish, and the saturation of blue and green is high. In terms of exposure tendency, Z2 is generally bright, which can well retain the details of the dark part of the picture. 13 million pixels can also give full play to its advantages, and the picture is rich in details, The Nexus 5 is still yellow, but it should be noted that in the second group of macro, the Nexus 5 is more accurate for color restoration, and the green saturation of Z2 is really too high.
With the support of optical anti shake, the quality of night photography of Z2 is much better than that of the same grade machines, even better than that of the HTC M8S tested earlier. Although the picture is heavily smeared and the details are not well preserved, the overall appearance is pretty good. Combined with the positioning of Z2, this is also a relatively normal level.
In daytime imaging, Z2 can give full play to the advantages of 13 million pixels, and the overall appearance and detail retention of the image can easily eliminate many models of the same level. However, the HDR of Z2 is unstable, sometimes the image quality is excellent, but sometimes serious white balance deviation problems occur. We also hope Lenovo can repair these problems in software when Z2 is launched.
In addition, in the actual use process, the camera APP is generally stable and occasionally flashes back. In addition, the HDR function of the evaluation machine is often unable to be turned on, and it can only be turned on after restarting the phone.
Performance:
Z2 is Lenovo's first mobile phone with a 64 bit processor. The built-in Qualcomm Snapdragon 410 processor uses a 28nm process, four cores, 1.2GHz main frequency, integrated Adreno 306 GPU, and positioned at the mid end. Therefore, despite the 64 bit aura, you don't need to expect the Z2 to challenge the flagship performance.
Moreover, VIBE Z2 is currently running Android 4.4.4 system, which does not support 64 bit computing, and needs to be updated to Android L to fully play the performance of Z2.
The Anthare Run is divided into 20198, which belongs to the level of mid tier computers. The Japanese Spider's score is 1457.3 milliseconds, which is only half of the current mainstream flagship mobile phone (using Snapdragon 801 chipset).
The graphics performance of Z2 belongs to the middle level, and the top speed car can run smoothly when reducing the level of visual effects.
After the second high special effect is forced to be turned on in real car 3 (the game cannot be started when the highest special effect is turned on), the game runs very unsmooth, with obvious frame drop.
At the default visual special effect level (low special effect), Z2 runs the real car 3 very smoothly.
In general, the performance of Z2 belongs to the current mid tier level. Under the current Android 4.4.4 firmware, most large games can be run with low special effects, and the performance is not fundamentally different from other 32-bit processor phones. We can only hope that Lenovo can make Z2 play its full performance in the future Android L updates.
Endurance:
The endurance of the Z2 is definitely 32 likes. During the evaluation, the highest brightness has been turned on all the time. It took a day and a half to run points, play music, take photos, play games and so on. During this period, I made several phone calls. At night, I did not turn on the flight mode to connect to WI-FI for standby. The remaining power is 56%. According to this level, normal use can last for 2 to 3 days. If this is not satisfactory, The Z2 also has the ultimate power-saving mode. After startup, the phone will only be able to use the phone, SMS and alarm clock functions, which can further extend the endurance.
Summary:
fabulous:
The appearance is handsome and masculine, and the body workmanship is more sophisticated than the flagship models of many brands.
The screen is amazing, with beautiful hair color, high brightness, great viewing angle, and easy to use manual adjustment function.
The buttons around the body have excellent hand feel, and the layout is convenient for single hand use.
The system is very functional, and many small functions in daily use can bring a lot of convenience.
The sound is loud and the font is big, so even the elderly can use it easily.
The UI is smooth.
It has dual card function.
The camera has optical anti shake ability, stable video recording picture, and the ability to take pictures at night has advantages over products of the same grade.
The performance is enough to run some large games.
If you don't agree with me, you can't do it.
The built-in 32G is one of the best in the same level of products.
Bounce:
The left and right frames are wide, and the pressure of single hand operation is high.
SD card expansion memory is not supported.
The screen will have drag shadows under some interfaces, affecting the viewing experience.
The sensitivity of touch keys is average.
The camera is too prominent and easy to be worn in use.
The overall smoothness of the testing machine is average.
At present, the price of VIBE Z2 has not been announced, and the object of this evaluation is also the engineering prototype of Z2, which may be slightly different from the retail version. However, as far as the quality of this engineering prototype is concerned, Z2 is still good.
Although the Snapdragon 410 chipset is a new product just released and adopts a 64 bit architecture, it has not encountered any incompatibility problems in the evaluation. In daily use, the SoC has played a very good role in performance, with certain performance and energy saving at the same time. With the large battery of 3000 mAh, the Z2 is very strong, 2GB RAM also enables Z2 to run multiple background programs.
In time, Lenovo will be able to attach a reasonable price tag to the Z2, correct the current bug in the engineering machine system, and add the mid end model to the list, which is believed to be a good choice in the mid end market.
