Is Lenovo zuk mobile phone still produced?

Young people always want to make a big news, which seems quite appropriate in the mobile phone circle. For example, Lenovo ZUK, who just made a mobile phone for more than a year a few days ago, made a big splash with cost performance. ZUK Z2 equipped with Xiaolong 820+4GB memory (LPDDR4)+64GB storage (eMMC5. 1) costs only 1799 yuan, which is quite bloody and cruel. Everyone must agree that you get what you pay. Sharp-eyed friends soon discovered that ZUK Z2 has no UFS storage, no NFC, no double color temperature fill light, and no OIS optical image stabilization (see the table below for details). After all, the price/performance ratio does not come out of thin air, and everyone must know it clearly. What is the actual experience of Xiaolong 820 mobile phone 1799 yuan? The author will share with you the preliminary experience today, and it will take some time to share the more in-depth content with you. If you have anything you want to know or test, please tell us in this respect. This evaluation is divided into five parts, which are long in length. We have specially listed the contents here, so you can choose the chapters you want to know. 1 Appearance workmanship: Founder is simple, the feel is worthy of recognition, but the texture is average; ② Screen: The narrow border design is commendable, but the display effect is inconsistent with the flagship identity; ③ Hardware performance: Can ZUK Z2 really perform the performance of Xiaolong 820 with 100%? ④ System UI: At present, ZUK Z2 is still equipped with ZUI 1.9 version, and those mentioned at the press conference will not be available until the end of the month, so it is necessary to be patient to adapt to other third-party Roms⑤ photography: the imaging speed is good, but the function and real-time imaging quality are really weak. First, the appearance of workmanship: simple and square, feel worthy of recognition, but in general, when we first saw ZUK Z2, if it wasn't the U-Touch 2.0 fingerprint identification entity button at the bottom of the front screen, we almost mistakenly thought it was a hammer mobile phone, such as similar double-sided glass material, slightly square body shape, tight R angle around, and the size arrangement of the camera on the back. On the whole, the visual experience of ZUK Z2 can be summed up in two words: "Founder, simplicity". ZUK's slightly square physical Home button design is actually more in line with this square body shape, and the designs everywhere look harmonious and easy to accept. ZUK Z2 adopts double-sided 2.5D curved glass+FRP fuselage middle frame. Look carefully, Z2' s double-sided 2.5D glass is relatively thin, leaving little cutting space for the edge. You can only see a little polishing effect brought by the 2.5D arc edge near the edge of the fuselage, which is not obvious. Perhaps due to cost constraints, ZUK Z2 does not use a metal middle frame, but uses a glass fiber material, which actually feels very close to plastic, which will make the texture of Z2 somewhat cheap. ZUK Z2 has two colors, black and white, and the texture treatment of the border surface is very different. The border of the white version Z2 feels delicate, while the surface of the black version is plated with metal particles, which has a certain matte and graininess. The official said that this is to imitate the processing method similar to SLR cameras to improve the feel. However, friends who have used SLR cameras should know that this plastic body will become smooth and greasy after a long time. We can only know what will happen if Z2 is used for a long time. Because the thickness of double-sided glass is not large, and it is made of fiberglass, so the weight of 5-inch screen Z2 should be relatively light, right? But after you pick it up, you will find that it is not like this at all, and it has a certain sense of weight. The actual weight is about 149 grams. In addition, the thickness of ZUK Z2 reaches 8.45mm, and the square shape also makes the thickness feel unobtrusive, but fortunately, the width of the fuselage is not large and the feel is relatively comfortable. Lenovo said that ZUK Z2' s double-sided 2.5D glass surface has been coated with anti-fouling and anti-fingerprint coating. In fact, it will become a big face after repeated play, but it is still very easy to take care of. It will be as bright as new after being wiped with a cleaning cloth, and there will be no feeling that it can't be wiped clean. However, the joint between the glass and the frame on the back of ZUK Z2 is easy to accumulate some fine dust. As far as the Z2 we got is concerned, it is easier to accumulate dust on the right side of the back, which may be caused by the assembly problem of the prototype. The buttons and openings of ZUK Z2 are concentrated on the left and bottom of the fuselage. The plastic volume button and power button feel a little hard but have good toughness and feedback. Two Nano SIM cards can be placed in the SIM card slot at the bottom, and the primary and secondary cards can be switched through software settings, and memory card expansion is not supported. In terms of network standard, ZUK Z2 supports full netcom, and all combinations can be used except two telecom cards. Bian Xiao also tried to put two Unicom cards in, and then opened the dual-card management. We were dumbfounded. SIM card information only shows two Unicom, and no corresponding number is given. You have to click once to see it. I hope ZUI can display the telephone information directly, so the operation will be more intuitive. Let's take a look at some details of ZUK Z2 first. The receiver opening at the top of the screen looks almost as long as the Home button at the bottom, but there is not only the receiver here. The left half is the light/distance sensor of Z2, the right half with holes is the real receiver of Z2, and further to the left is the front 8 megapixel camera of Z2. U-Touch 2.0 fingerprint identification key is also a classic element since ZUK Z 1, similar to Meizu's mTouch. U-Touch 2.0 replaces the traditional three donkey kong and a single fingerprint identification module, and also supports a variety of operations, such as touching, sliding left and right, long touching, pressing the Home button twice in a row, and long pressing the home button. , allowing users to customize the corresponding functions of specific operations, which is still very refreshing in actual use. For example, you can tap to light the screen to unlock the phone, swipe left and right to switch open applications, double-click to open background multitasking management, tap back, and press and hold to lock the screen directly. The U-Touch button is slightly higher than the surface of the fuselage, with crisp feel and fast feedback, which is a bit like the Home button of Meizu MX5. According to the difference of black and white colors, the U-Touch 2.0 key uses dark gray and silver decorative rings respectively, and the details are worthy of recognition. The surface of the camera lens on the back of Z2 is flush with the back cover, and a protective frame around it has extremely slight protrusions to protect the lens. In the rear camera part, Z2 adopts Samsung13 megapixel ISOCELL sensor, 5P lens group structure, F2.2 aperture, 1.34μm single pixel area, supporting phase focusing, and the nearest focusing distance is 10 cm. The LED fill light on one side has a single color temperature, and the Z2 noise reduction microphone is on the right. The actual photo sample, we will look at it later. Second, the screen: the narrow border design is commendable, but the display effect does not meet the flagship identity. ZUK has a set of controls on the black side of the screen, that is, BM area. It has achieved the ultimate 0.05mm on Z2 Pro, and it looks really amazing with Super AMOLED screen. ZUK Z2 not only reduced the screen size from 5.2 inches to 5 inches, but also changed the material from SuperAMOLED to LTPS LCD. Due to the addition of backlight module, the width of BM area is much more, but the actual width is also well controlled, even on the most eye-catching black-and-white version Z2, it is completely acceptable. It's really commendable here. Speaking of display effects, I'm afraid this screen of ZUK Z2 doesn't meet its positioning as a "small screen super flagship". The fineness of the 5-inch 1080P screen is definitely enough, and the problem lies in brightness and color. First of all, the maximum screen brightness of ZUK Z2 is only 400 nits, which is not high. There may be a problem, that is, you can't see the screen clearly under the strong outdoor light, and the contrast is not high enough, which seems to lack a sense of transparency. In addition, the screen color gamut of Z2 is only 70% of that of NTSC, which is light in color and taste and not gorgeous enough. The default color temperature is slightly cold (there are three colors to choose from: warm color, standard color and cool color, which can turn on the "Ping Huang" eye protection mode). In addition, if ZUK Z2 is deflected, it can be found that when it is deflected in the left and right direction, its brightness drops obviously, but it is fine up and down. ▲ Look at the screen of ZUK Z2. This is probably the case in sunny outdoor sunshine. The highest brightness is really not enough. Third, hardware performance: Can ZUK Z2 really play the performance of Xiaolong 820 with 100%? ZUK Z2 directly lowered the price of the Xiaolong 820 mobile phone by one grade this time, and it is still standard instead of the Lite version of 820. Many friends are going to start with Z2 for this. At the press conference, ZUK officials also strongly highlighted the advantages of Xiaolong 820. Not only does it have the function of "fever prophet" to suppress fever, but it also supports "one-key overclocking", which claims to really surpass the performance of Xiaolong 820 itself 100%. So is this really an actual experience? Let's take a moment to see what ZUK Z2' s so-called "fever prophet" really means. ZUK said that five minutes after the Xiaolong 820 chip started to heat up, consumers would feel the fuselage heating up. ZUK uses this time to reduce the load in advance to cool the chip, so that consumers feel that the fuselage will not be too hot. Well, you should understand it by looking at the picture below. Z2 intervened when the chip temperature reached about 57 degrees Celsius, and then the temperature dropped all the way, and the temperature conducted to the fuselage surface was only about 35 degrees Celsius. Without treatment, the chip temperature will soar to 65 degrees Celsius, and the body temperature will soar to nearly 50 degrees Celsius. Isn't this the threshold to reduce the frequency of fever reduction? ! The temperature has dropped, and the performance estimate has also been lowered, right? Ok, look directly at the actual situation of NBA2K 16 (default picture quality, moderate audience effect, the rest is the highest), which puts some pressure on CPU and GPU. Bian Xiao ran the game continuously for 30 minutes, and recorded the frequency and power consumption of CPU and GPU during the process. It can be seen that, in terms of CPU, in the game "NBA2K 16", the highest frequency of ZUK Z2' s Xiaolong 820 only lasted about 1 minute, and then it began to gradually decrease. After 5 minutes, the high-frequency Kyro core frequency drops to about 1.5GHz, and after 10 minutes, it approaches 1.3GHz, and so does the low-frequency Kyro core. Under the condition of long-term operation, the main frequency hovers between 700- 1000MHz. The overall frequency reduction is very strong, but fortunately, the fluctuation range is not large, which will also make the game frame rate relatively stable. ▼GPU is also a sad reminder. The frequency of 624MHz only lasted for a short time and then dropped to about 200MHz, and the lowest frequency even reached 120MHz. ▼3 1 minute "NBA2K 16" after the game, the average frequency data of CPU core and GPU of ZUK Z2 Xiaolong 820 (the right column is the average value. CPU 1 and 2 are Kyro low-frequency cores, and CPU3 and 4 are high-frequency cores). It can be seen that ZUK Z2' s Xiaolong 820 has a serious frequency degradation under long-term high-load operation, but the key is that ZUZ can still run NBA2K 16 with the highest quality, which is also the strength of ZUK Z2 itself. After all, a thin camel is bigger than a horse, and ZUK Z2 can fully meet the needs of users who are picky about performance. After the fever reaches the set threshold, ZUK Z2 shows a steady decline, and there is no big frequency fluctuation, which will also make the actual game experience more stable, which is still very worthy of recognition. In this process, the highest temperature on the surface of the fuselage we measured was about 42.8 degrees Celsius, which obviously felt a little hot. Game 3 1 minute power consumption 14%. In the actual daily use process, ZUK Z2' s Xiaolong 820 is active, and the operation of sliding the main screen continuously and quickly may make it work with blood boiling, so the actual fluency is really good, coupled with the slippery operation feel of ZUI itself, there is no need to worry about the fluency in actual use. During daily use, ZUK Z2 also has some fever. For example, if you hold a mobile phone with your right hand and one hand, it is easy to feel warm at the second joint of your index finger. The temperature at this time is about 367 degrees Celsius. Some friends may have noticed that ZUK also claimed that their Xiaolong 820 would save more electricity in some usage scenarios. What happened? In fact, Xiaolong 820 itself also integrates a DSP chip with independent architecture, namely Hexagon 680 (there are three groups, of which 1 is an ultra-low power consumption unit, which is responsible for all kinds of sensor data). Hexagon 680 chip of Xiaolong 820 not only uses NEON SIMD arithmetic unit mainly composed of CPU and GPU to deal with general application scenarios, but also can be used as a supplement to the arithmetic unit, sharing the calculation tasks originally belonging to CPU and GPU, with high power consumption. Hexagon 680 in Qualcomm only supports Qualcomm's own closed function library (which is difficult for ordinary application developers to call), and can only handle sound effects, photo post-optimization processing, sensors, video codec and other usage scenarios (it may also be responsible for VR, AR, video post-processing and other computing tasks in the future). OEM/ODM vendors can decide whether to enable DSP and to what extent. ZUK gives full play to the power of Hexagon 680 DSP, and makes it play the role of a coprocessor, sharing the calculation tasks of various sensors and GPS positioning chips, which can greatly reduce the wake-up time of CPU and thus reduce power consumption. Therefore, we can see that Z2' s more power saving emphasized by ZUK only focuses on several usage scenarios such as sports power saving and taxi power saving. In terms of charging speed, it is measured in Bian Xiao that ZUK Z2 can charge more than 80% in one hour, but around 85%, the charging speed of ZUK Z2 will obviously start to slow down, and it takes about 1 hour for 50 minutes to fully charge. Fourth, the system UI: At present, ZUK Z2 is still equipped with ZUI 1.9 version, and those mentioned at the press conference will not be available until the end of the month, and they need patience to adapt to other third-party Roms. At present, ZUK Z2 is still equipped with the stable version of ZUI 1.9.044 based on Android 6.0. 1. So many new functions mentioned at the press conference, such as automatically adding the alarm clock according to the weather conditions, directly extracting and displaying the schedule/taxi information/WeChat QQ red envelope through the screen lock frame, customizing the screen lock theme, and directly integrating contacts and information into WeChat, can only wait until June 28th. ZUK's open adaptation to third-party rom is still very worthy of recognition, but when it can be listed and how perfect it is is another matter. I can't experience brushing other Roms for the time being, so I won't add them. If you haven't used ZUK's ZUI before, let's take a look at some features of ZUI through the following introduction. If you have used ZUI, please skip to the photo session below. ZUI's overall style is still relatively plain and fresh, and many settings are "stupid", such as the initial settings page after the first boot. ZUI directly provides the option of "directly entering the desktop", which can skip all kinds of complicated settings at one time. ▼ZUI particularly highlights the fitness function. The negative screen on the left side of the main screen is the display page of exercise and fitness data, where you can also quickly start fitness training such as walking, running and cycling. In the process of fitness activities after the function is turned on, ZUK Z2 will always display the latest sports monitoring data in white on a black background. Thanks to the hexagonal 680 mentioned above, ZUK Z2 has low power consumption when turning on the function, so don't worry about too much power consumption. ▼ On the home screen of ZUI, slide down from any position to open the notification bar, and then slide up the shortcut toolbar from the bottom of the screen to bring it up. Paging and manual sorting are supported. Double-click the home button to open the background task management. In terms of icons, many system-level applications of ZUI have added dynamic effects. Besides the common clock and calendar, its information icon is also dynamic. When there is unread information, a pair of eyes will appear on the information icon to remind you to check the information. ▼ZUI's U-Touch 2.0 fingerprint recognition button is very similar to Meizu's mTouch. In addition to using fingerprint recognition to wake up the screen, it also supports touch, slide left and right, long touch, long press, double click and other operations. , and support user customization. After simple use, it is really refreshing, efficient and addictive. However, it is also possible to dig a hole for the subsequent third-party ROM adaptation. ▼ZUI's security center is effective in dealing with rights management and application self-startup. For example, in order to limit the calling rights of Android applications, many customized Roms have added rights management functions, but some of them require you to set them manually after installing new applications, which gives people a very troublesome feeling. Look at ZUI's interface, which provides four options by default. For novice users, just click "I don't understand, it will be handled automatically by the system". ▼ The most puzzling thing about the domestic Android platform is all kinds of self-startup, except permissions. When you open an application, you can wake up all the home applications associated with it together, or wake up together based on the message push service of the same service provider. This will make the mobile phone unable to really sleep, and frequent wake-up will not only lead to power consumption stagnation, but also the collection of personal privacy data, which makes many users who are new to the Android platform feel very distressed. To be honest, ZUI has done a good job in this respect. At least, it does not lag behind several domestic first-line customized Roms. 1.9 provides related wake-up monitoring and manual control functions. By default, in addition to the necessary social and mobile payment applications, ZUI is basically not allowed to wake up related third-party software, which will make users worry a lot. ZUI's security center will also automatically optimize the system in its spare time, such as releasing more memory, cleaning up the cache, and unloading the residue after application. ▼ As a young customized ROM, ZUI has not integrated many applications and services at present. The music player directly uses Tencent's QQ music, and there is no theme service (but four UI colors, white, black, blue and pink, are provided by default). There are only eight pre-installed third-party applications, and the overall feeling is quite refreshing. ▼ZUI now also supports synchronizing contacts and schedules with Apple's iCloud. After logging in to Apple ID, we can automatically synchronize the information on the iPhone to ZUK Z2, and the modified data on Z2 can also be synchronized to iCloud. 5. Photographing: The imaging speed is good, but the function and real-time imaging quality are still relatively weak. Domestic flagship Android phones generally choose Sony IMX298 with 654.38+06 million pixels as the standard configuration this year, which is also equipped with DTI pixel deep groove isolation technology. The actual imaging performance is really remarkable, but ZUK Z2 chose Samsung's 654.38+03 million pixel ISOCELL image sensor this time. What is its actual photo experience and effect? First of all, in terms of function, ZUK Z2' s camera is limited. In addition to basic photography and video, it only has HDR, panoramic, slow-motion and fast-motion functions, without manual/professional mode, filter/time-lapse photography and other functions. It really lags behind many domestic first-line manufacturers. ▲ The resolution of 960 frames of slow-motion video is 1280*720. However, since ZUK Z2' s image sensor is only13 million pixels, the dual-core ISP of Xiaolong 820 is really easy and comfortable to handle. No matter day or night, the speed of taking pictures and imaging is very fast, but the algorithm of HDR is not enough. The speed of starting HDR post-processing is obviously slower than that of the current first-line domestic mobile phone manufacturers. In terms of autofocus, ZUK Z2' s focusing speed is not bad, but its aiming is average, especially when you click on a certain position on the screen to enable contrast focusing, Z2 will be very tangled. Obviously, the focus in the viewfinder is clear, but when the focusing action stops, it will be too empty and can only be refocused from the beginning. This phenomenon of repeated focusing is more common. In addition, we also encountered a strange problem, that is, we can't connect the camera during the photo taking process, and we have to restart our mobile phone to take photos again. ▼ Let's take a look at the actual imaging proofs of ZUK Z2. ▲ Comparison between ▲HDR on (right) and off (left) ▲ Zoom and crop at the center and edge of the picture with 100% ▲ Zoom and crop locally with 100%. Judging from the actual shooting proofs, the imaging performance of ZUK Z2 does have a lot of room for optimization. First of all, the resolution of the center of the picture is very different from that of the edge; In the white balance part, ZUK Z2 images are mostly cool green, and the whole picture is covered with a feeling of cold gray, and occasionally red appears once or twice in some scenes; Exposure control is not in place, and imaging exposure is slightly insufficient during the day. After automatic HDR is turned on, the brightness of the picture is very obvious, the color saturation and clarity of the picture will be greatly increased, and some color overflow will appear in the actual picture. This balance point of exposure control really needs to be handled by ZUK; At night, ZUK's ISO sensitivity is higher, and the brightness of photos is much higher than the actual scene, but it seems to be only 1400 and 2600. No matter how dark it is, it will not increase the sensitivity. ISOCELL technology is added, but the noise control and resolution of the picture are very general. In the photo-taking part, there is indeed a big gap between ZUK Z2 and first-line domestic flagship machine. If you have a high demand for taking pictures, then Z2 is obviously not your cup of tea. Of course, the adjustment of taking pictures is also a delicate work. For ZUK, who has just been making mobile phones for a year, there are still many places to improve. Now that ZUK has returned to Lenovo, should Lenovo consider transferring the camera skills of Motorola X Style to ZUK in order to make ZUK play a better vanguard role? ? Evaluation and summary Through the practical experience of the above links, we can clearly see that ZUK Z2 has achieved powerful enough performance, smooth daily use experience and fast and sharp storage speed for taking photos and imaging, and further tapped the potential of integrating DSP chip with ZUK 820, making it more energy-saving when responding to sensor data. In addition, in the case of limited cost, ZUK Z2 is also equipped with a 3500mAh capacity battery and non-QC3.0 standard fast charging technology, which captures several pain points in the user experience. In the core experience section, ZUK Z2 does have leapfrog performance. But also, for this Xiaolong 820, ZUK has made many compromises in other aspects, such as screens and photos that directly affect the daily experience, as well as the choice of some configurations and body materials. I can only give you the performance of flagship machine, but I can't give you the comprehensive experience of flagship machine. Don't have too many flagship fantasies about Xiaolong 820. If you think these are acceptable, it is ok, then ZUK Z2 of 1799 yuan is still worth starting, provided that it can be bought. Recently, it has been reported that Lenovo's board of directors has agreed to give up the profitability of mobile business in the next two years, thus reversing the difficulties faced in the domestic market. Chen Xudong, senior vice president of Lenovo Group and Mobile Business Group, also said, "We need two years, and two or three generations of ZUK products and two generations of Moto products may change the situation in the China market." From the above statement, we should easily understand why ZUK's Z2 series mobile phones are so bold to move closer to Xiaomi this year. Sacrificing profits in exchange for market share, and taking ZUK series as the new direction of Lenovo mobile phones, considering Lenovo's own foundation, the development of Lenovo's mobile business in the next few years is still very worth looking forward to. But one day, Lenovo will jump out of the current development model of cost performance and return to the situation of speaking by the comprehensive strength of products. If you look at it this way, ZUK and Lenovo do have a lot of room for improvement. We might as well wait and see.