ZUK is Lenovo's sub-brand, the fifth largest in China and the eighth largest in the world in smartphone sales. There are still few ZUK models, today you can find three on sale in Russia: ZUK Z1, ZUK Z2 and ZUK Z2 Pro. In that brief overview we'll take a look at the ZUK Z2 and take a look at how it differs from the other two models from the brand.
ZUK Z2 went on sale in the summer of 2016 and by the end of the year was among the top ten best-selling Android smartphones in China. The smartphone has the following specifications: 5-inch IPS-screen with a resolution of 1920x1080 pixels, operating Android system 6.0, 64 GB permanent and 4 GB random access memory, support for two sims.
The main camera of the smartphone is a 13-megapixel ISOCELL sensor, covered with a 5-component lens with an aperture of F2.2 and an equivalent focal length of about 24 mm. There is digital stabilization and hybrid autofocus. The front 8MP camera is equipped with an F2.0 lens with an equivalent focal length of 26mm.
Battery capacity 3500 mAh. Quad-core Qualcomm Snapdragon 820 MSM8996 processor. There is a fingerprint scanner (on the front panel at the bottom). The front and back surfaces are covered with 2.5D tempered glass with an oleophobic coating (i.e., with a repelling dirt and grease).
ZUK Z2
ZUK Z2 vs. ZUK Z1
What are the differences between the second ZUK and the first, which went on sale in November 2015? Specifications ZUK Z1: 5.5-inch IPS screen with a resolution of 1920x1080 pixels, Cyanogen OS 12.1 operating system (based on Android 5.1.), 64 GB of permanent and 3 GB of RAM, support for two SIM cards. The main camera is 13 megapixels, the front camera is 8 megapixels. Battery capacity 4100 mAh. 4-core Qualcomm Snapdragon 801. There is a fingerprint scanner (on the front panel at the bottom).
The average price in Russia is 14,290 rubles. As we can see, the price for both models is practically the same, while the ZUK Z2 has a half-inch smaller screen, 1 GB more RAM, and a more modern processor. At first, it may seem that due to a decrease in battery capacity, the smartphone is less autonomous than the ZUK Z1, but tests show that in fact the ZUK Z2 works a little longer without recharging: 80 hours of listening to music (ZUK Z1 - 75 hours), in video viewing mode - 16 hours (ZUK Z1 - 12.5 hours). Therefore, the ZUK Z2 is a more advanced model at the same price.
ZUK Z2 vs. ZUK Z2 Pro
In the summer of 2016, the ZUK Z2 Pro version was also released with two variations: 64 and 128 GB of RAM. The differences between the ZUK Z2 Pro 64Gb and the regular version are that the screen is slightly larger - 5.2 inches and that the battery capacity is slightly less - 3100 mAh. V this moment this model is not on sale in Russia. There is a ZUK Z2 Pro 128Gb model on sale, which differs from the ZUK Z2 Pro 64Gb not only in the amount of permanent memory (128 GB), but in the amount of RAM: as much as 6 GB. Its average price in Russia is 24 thousand rubles.
ZUK, a Lenovo sub-brand, has released the Z2 Pro smartphone, which is the successor to last year's ZUK Z1. Currently, the smartphone is only available in China, but soon it will appear on global markets and will be available in two variants, one with 6GB of RAM and 128GB of ROM and the other with 4GB of RAM with 64GB of ROM. The 6GB model went on sale on April 22nd, and the 4GB version became available on May 10th.
The zuk z2 pro smartphone is the flagship device from ZUK with the latest specifications and features. The Z2 Pro is powered by a 4-core Snapdragon 820, which runs at 2.15GHz paired with an Adreno 530. The more expensive high-end variant comes with 6GB of RAM and 128GB of storage, but no micro SD card support.
The novelty runs on Android Marshmallow with the ZUI 2.0 shell. The Z2 Pro also features a 5.2-inch Super AMOLED Full HD display with a resolution of 1920 x 1080 pixels. The build quality of the phone is excellent. Its thickness is 7.5 mm and it weighs only 145 grams.
Lenovo ZUK Z2 Pro specifications
Display: 5.2-inch Super AMOLED
Dimensions: 145.4 x 70.5 x 7.5mm
Weight: 145 grams
Resolution: 1920 x 1080 pixels
Operating system: Android Marshmallow
RAM: 6GB / 4GB
Processor: Snapdragon 820
GPU: Adreno 530
Internal memory: 128GB / 64GB
Battery: 3100mAh
Main camera: 13 Mps
Front camera: 8MP
The ZUK Z2 Pro is equipped with a 13MP main camera, which has features such as autofocus, f / 1.8 aperture and dual LED flash. The second is quite powerful 8MP front-camera can capture video at 1080p. The device is backed by a 3100mAh capacitive battery with Quick Charge 3.0 support, which can charge the battery from 0 to 83% in just 30 minutes. The phone is available in two color options: Black Titanium and Ceramic White.
Other features include fingerprint sensors, USB Type-C, Wi-Fi, Bluetooth v4.1, GPS, heart rate sensor, dual SIM, 3G, LTE and 3.5mm audio jack.
ZUK z2 pro 64gb price
The ZUK z2 pro 64GB variant costs, on average, 32,000 rubles, and the 128GB variant is several thousand more expensive.
ZUK z2 pro review video
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Zuk is a sub-brand of the well-known company Lenovo, which has introduced several smartphones to the market to date: Zuk Z1, Z2, Z2 Pro, Edge. How do they deserve your attention? Flagship performance at a low price. How do you feel about the Snapdragon 820 smartphone, which scores more than 130,000 points in AnTuTu, and is able to compete with the top representatives of the mobile device market? And if we say that this smartphone costs 12,000 rubles. Not bad, right? Each of the Zuk models is capable of boasting a reasonable price tag, indeed worthy characteristics, very solid appearance and already quite high popularity among users who do not hesitate to walk with a "bug". Is everything so smooth? We decided to do a voluminous review of all Lenovo Zuk smartphones.
Please note that sometimes you can find references to the Zuk Z2 Plus, Rio and some others. These are, in fact, the same models that we will consider today, simply released for other countries or timed to coincide with some events (the Olympics in Rio de Janeiro).
Technical specifications Lenovo Zuk
Design
Zuk Z1 Everything Lenovo smartphones In terms of design, Zuk is trying to match the trends that were at the time of the official release. The Zuk Z1 borrows from the iPhone 6 / 6S and a huge variety of Chinese solutions. On the front is a classic Android smartphone that set it apart from other 2015 models because of the mechanical button on the front. The ends are the iPhone 6, which was then quoted by many manufacturers from the Middle Kingdom. Zuk Z1 received sloping edges, rounded corners, looks nice and stylish even today. The frame of the smartphone is made of metal, the most common, without any attachments. The back side is matte plastic, which looks nice and feels nice in the hands. The front side is covered with protective glass.
Zuk Z2 The Lenovo Zuk Z2 is radically different in terms of design. If it were not for the inscriptions on the back, then you would not guess that we have two smartphones from the same line in front of us. From the sloping edges in the Zuk Z1, the manufacturer has jumped to rough corners, square shapes that now resemble not the streamlined iPhone 6, but the brick-like iPhone 5S. Someone did not go with the design, someone was just crazy - this kind of performance is less and less common today. The company refused from plastic and metal in favor of glass and fiberglass, which look more premium, more pleasant to the touch, but at the same time not so reliable - the very first fall will lead to cracks. However, you can buy glass for Lenovo Zuk Z2 on the same Aliexpress for several hundred.
Zuk Z2 Pro In the Lenovo Zuk Z2 and Zuk Edge, the manufacturer continues to use slightly rounded glass covering the front and back, but the frame is now metal, which will give additional reliability. By increasing the diagonals of the screens, Lenovo Zuk Z2 and Zuk Edge have become slightly larger than the Z2, but at the same time thinner (apparently due to a decrease in battery capacity). The position of the main camera has changed (we moved from the left corner to the center, as it was in the Zuk Z1, having received a slightly different shape). The Zuk Edge also features narrow bezels around the screen, making it one of the smallest 5.5-inch smartphones around.
Zuk edge Arrangement of elements
In terms of the arrangement of the elements, everything is identical (the speaker grilles and the shape of the buttons are slightly different, but is that serious). The front panel of Lenovo Zuk is distinguished by a single button, which is both mechanical and touch, this is the same fingerprint scanner. Outwardly, the button refers us to Meizu and some other manufacturers, but in terms of functionality it looks much more interesting. The Lenovo Zuk button is responsive to taps, taps and swipes. All this can be combined (two touches, long press), independently configured (for example, long press - the list latest applications, swipe - switch between applications). At first it may seem inconvenient, your fingers are looking for familiar touch buttons, but once you get used to it, you will feel real comfort. The Lenovo Zuk button is one of the advantages of the line, which will be to the taste of very many, believe me.
Above - the earpiece, which is surrounded by a classic set of sensors, an event indicator (it is invisible, but there is a soft white color) and a front camera (all models have it on the right, except for the Lenovo Zuk Z2, for which it has shifted to the left). The power key and the undivided volume control rocker are in any case on the right side - the standard location. Only the Zuk Z2 has a tray (not a hybrid, only for two SIM-cards) on the right side, just below the buttons. For the rest of the smartphones of the line, the tray is taken out by the individual farmer on the left side.
The top of the Lenovo Zuk Z1 has a 3.5 mm jack. Other smartphones also have it, but moved to bottom end... An external speaker, microphone and USB port Type-S (for all Zuk models). The backs are also roughly identical. The exception is Zuk Z2, which, unlike the others, has the main camera lens and LED flash moved from the central zone to the left corner.
Smartphones of the Lenovo Zuk line cannot be called freaks. Each of them looks good in its own way.
Display
So, we continue our review of Lenovo Zuk smartphones. Let's start, naturally, with the first solution in the lineup. Lenovo Zuk Z1 is equipped with a relatively large screen even by today's standards - five and a half inches, whatever one may say, look impressive. The screen is surrounded by rather thick frames (between the “Home” button and the matrix there is a “finger” distance at all), so you cannot call a compact smartphone. The most optimal resolution for such a diagonal is FullHD. In general, the Lenovo Zuk Z1 display looks quite juicy today, giving out a pleasant 401 dpi. The sensor is moderately sensitive, supports up to 10 simultaneous touches. The screen is covered with a protective glass of good quality, which complements the "oleophobic". What can be noted as the disadvantages of the Lenovo Zuk Z1 screen is a noticeable slight yellowness, as well as an automatic brightness level adjustment that does not quite work correctly.
In the Zuk Z2, the manufacturer reduces the diagonal to a more compact five inches, and also trims the bezels around the perimeter. However, the resolution does not touch, leaving all the same 1920 × 1080 pixels, which already provide 441 dots per inch. It is clear that with such characteristics we get an even clearer and more saturated picture. In terms of image quality, the Zuk Z2 is not inferior to more expensive models with the same parameters. I especially want to praise the oleophobic coating of the glass, which does not collect fingerprints too quickly, and even allows them to be removed with a slight movement of the hand. But the number of simultaneous touches has decreased to five, although the disadvantage of Zuk Z2 can only be considered "on paper". Overall, the quality is also very decent.
In Lenovo Zuk Z2 Pro, the diagonal has grown slightly - by 0.2 inches. This size is ideal considering the size of the frames. On the one hand, the diagonal is comfortable to operate with one hand. On the other hand, 5.2 inches is enough to hold large amounts of information. The resolution in the Lenovo Zuk Z2 Pro remains the same, but a different matrix is used - Super AMOLED instead of IPS. The innovation was only beneficial. AMOLED consumes less power, moreover, it is noticeable that the manufacturer has worked on calibration of the display, which in the end ensured the correct bright colors. Curved Gorilla glass with a good oleophobic layer is used as protection.
The Lenovo Zuk Edge also uses a Super AMOLED matrix, but the diagonal has increased by another 0.3 inches. According to information from the manufacturer, the panel is made by Sharp, a company that is quite well known in the market as a supplier of good displays. What distinguishes the Zuk Edge from its counterparts is its narrower bezels, which looks more stylish and modern, and adds comfort when using - it is more pleasant to work with Edge with one hand than with similar smartphones, which have more pronounced bezels. There is also high-quality glass, it is from Corning, but the company did not provide information about the generation. The picture quality is in complete order - it is saturated, moderately sharp, clear and bright.
Pleases a variety of diagonals, which is presented in the Zuk line. Do you prefer compactness? We advise you to buy Lenovo Zuk Z2. Five inches is not enough, but five and a half is already a lot? Take a closer look at the Z2 Pro. Are you a fan of phablets? Then you are at the showcase with Z1 or Zuk Edge (the latter also captivates with thin frames).
Performance
Decent attention in Lenovo Zuk was given to hardware. This is not a line of middle peasants or state employees who are content with Heli P25 or Snapdragon 625. Each smartphone received a top processor at the time of its release.
Lenovo Zuk Z1
The Lenovo Zuk Z1 was featured on the Snapdragon 801, a top-end chip announced back in the summer of 2013. The processor is 4-core, capable of operating at a frequency of up to 2.5 GHz. Built on a 28nm process technology - modern mid-range chips are developed with more advanced ones. The only noticeable drawback of the Snapdragon 801 is its high heat dissipation. On the same chip, Samsung Galaxy S5, the first OnePlus, LG G3 and some other flagships of the time.
Lenovo Zuk Z1 is not deprived of memory - 3 gigabytes of RAM and 64 constant. Even today, these figures look impressive, given that in the price segment in which the smartphone is located, 32 GB can be considered the maximum.
Lenovo Zuk Z1, despite its age, is capable of producing good results in terms of performance. He is still capable of most of the most demanding games; we are generally silent about the smoothness of the interface. In AnTuTu, the Zuk Z1 scores about 50,000 points.
Lenovo Zuk Z2
Zuk Z2 was shown in the summer of 2016, relatively recently. The smartphone received one of the top-end processors of that period - Snapdragon 820. A little later, the Snapdragon 821 was presented, but not to say that the chip seriously bypasses its predecessor in power. Snapdragon 820 is a 4-core solution, clocked at up to 2.15 GHz. It was built using a more modern and energy efficient 14nm process technology. Today, of course, the flagship lines are abandoning it in favor of the Snapdragon 835, but there is not a single game or program that would make the 820 slow down. The Snapdragon 820 features a lot of flagships that are still highly rated today: OnePlus 3, Xiaomi Mi 5, Samsung Galaxy S7.
RAM in Zuk Z2 has become 4 GB, the volume of the drive remains the same - 64 GB. Unfortunately, there is no memory expansion (the tray is designed for two SIM cards only). But, in principle, this volume will be enough for most users.
In terms of play, everything is very cool. Zuk Z2 easily runs any games at maximum settings, we can say with confidence that the situation will not change in the coming months. In AnTuTu, the smartphone is gaining more than 130,000 points.
Lenovo Zuk Z2 Pro
Nothing has changed here - we have the same Snapdragon 820. However, the smartphone was presented in versions with 4 or 6 GB of RAM. Naturally, more RAM led to a slight increase in performance (to a greater extent affected multitasking). In synthetic tests, you can expect to receive 140,000 points. The volume of the drive was also increased to 128 gigabytes (the 64 gigabyte version also remained).
Lenovo Zuk Edge
The Zuk Edge went to Snapdragon 821, the company's penultimate flagship. The processor differs from its predecessor only by a slightly increased clock frequency - 2.34 GHz versus 2.15 GHz. Also, the frequency of the graphics core has been slightly increased. The changes had a positive impact on performance, but there was no major leap forward. And in everyday work, the difference between Snapdragon 821 and Snapdragon 820 is almost imperceptible.
Zuk Edge, like its predecessor, is presented in two versions - with 4 or 6 GB of RAM. The drive, regardless of RAM, has a volume of 64 GB.
The Zuk Edge, unsurprisingly, has absolutely no performance issues. In the AnTuTu test, the smartphone even demonstrates more than 160,000 points, having stood in line with flagships from larger companies.
Communication, interfaces, navigation, sound, fingerprint scanner
Here, all smartphones of the Lenovo Zuk line are approximately identical. All models support a pair of nano SIM cards. Each of the smartphones works on all popular networks today, including LTE. There are no problems with communication - they are ideal for calls.
The set of interfaces is as primitive as possible, while there is everything you need, made according to modern standards: Wi-Fi 802.11ac, Bluetooth 4.1. Say they work well? Yes, there are no problems with the interfaces, which is obvious. Many will be pleased with the 3.5 mm jack located on the bottom or top end (in the Zuk Z1). A USB Type-C port is used to charge and connect a smartphone to a computer - just like people do. The OTG function is supported, but you will have to purchase a special adapter.
The only thing, NFC would look very harmonious, which, unfortunately, does not exist.
Everything is "OK" and with navigation. We have GPS and GLONASS. Satellites find smartphones at lightning speed, for which we can thank the top processors. You can't make a lot of notes about the sound either. He's just not bad. None of the Zuk smartphones have stereo speakers or other nice things, so you shouldn't expect miracles.
As noted, the fingerprint scanner is built into the already multifunctional Home button. This location, we think, will appeal to many. The scanner is good: it works with lightning speed, very high accuracy. It is possible to bind up to 5 fingers, as well as block any applications, which for many will be useful function... In general, it is not inferior to the flagships in this regard.
Operating system
One of the most interesting and at the same time infinite moments in Lenovo Zuk smartphones is the firmware. Why is it interesting? For the Zuk line, dozens, if not hundreds, of a wide variety of third-party firmware are presented, ranging from pure Android to Flyme (proprietary shell smartphones Meizu). Why mad? Until now, the company has not managed to bring its shell to mind. Despite the abundance of third-party firmware for the Zuk, it's hard to find one that works perfectly. You will have to spend a lot of time on the w3bsit3-dns.com forums dedicated to Lenovo Zuk, do the flashing and configuration, in order to eventually get a working smartphone.
Zuk Z2 and Zuk Z2 Pro work under Android Marsmallow, on top of which we have a proprietary ZUI shell. The Zuk Edge works on the same shell, but it is already initially presented on Android Nougat. When ordering from China, in most cases we get an untranslated firmware, which will have to be changed on our own. Fortunately, this is not difficult to do, and the abundance of firmware on the Zuk Z2 and Zuk Z2 Pro and other models is amazing. The Zuk Z1 has Cyanogen OS 12.1 out of the box, built on top of Android 5.1.
The proprietary ZUI shell is similar to the popular MIUI. Looks pretty good, quite comfortable. Redesigned the notification curtain, from which a set of buttons for quick access disappeared. It now appears at the bottom, just like the iPhone. This is quite convenient, especially if not tied to the classic Android interface... However, no one is forcing you to use exactly ZUI. Remember the large number of firmware on Zuk? Choose any (pure Android, Flyme, MIUI ...), reflash your smartphone and rejoice.
Cameras
At what point Lenovo Zuk smartphones reach the title of flagships, it is in photo capabilities. In general, if you are looking for a smartphone for a photo, then it is better to look at other models, the same Xiaomi Mi5 or, for example. Without going into details, we can say that our cameras are average (maybe slightly above average).
“On paper” in all cases we have a pair of 13 and 8 megapixel sensors. All smartphones, except for the Zuk Z2 Pro, have an aperture of F / 2.2 - which is an average characteristic. Everything is a little nicer in the Z2 Pro - F / 1.8.
Zuk Z1 received a Sony Exmor RS CMOS sensor. It is rather outdated, but it is announced in smartphones such as LG G6a and Meizu M5s. Often found in Chinese smartphones for $ 100-200. There is autofocus, optical stabilization, HDR mode. During the day on the Zuk Z1 you can get quite good pictures, at night the situation is expected - noise and poor autofocus. Videos can be recorded in maximum FullHD resolution at 120 frames per second.
The Zuk Z2 and Zuk Edge are equipped with an ISOCELL Samsung S5K2M8 sensor. Quite a rare model on the market. The quality has slightly grown, compared to the Zuk Z1, additional settings have appeared. The key innovation is the ability to record video in 4K resolution with a frame rate of 120 fps.
Zuk Z2 Pro received an unknown kind of sensor from Samsung... Belongs to the ISOCELL type, presented by the more attractive F / 1.8 aperture. By characteristics and additional settings the camera is comparable to the rest of the Zuk smartphones, but the photo quality has improved markedly.
As a result, we have: if the quality of the photo is not important, then feel free to consider the Zuk line. If you are a lover of high-quality pictures, it is better to take a closer look at smartphones of a different style (some Meizu, Xiaomi Mi5, LeEco Le Max2).
Autonomy
Again about pleasant things in Zuk. Unlike the flagships of the A-brands, which are usually represented by batteries not large capacity, Zuk are equipped with weighty batteries. So, Zuk Z1, like, received a 4100 mAh battery. Autonomy really pleases: 9 hours of HD video playback at maximum brightness, three days of work in moderate mode or a day in active mode. Support declared fast charging using Qualcomm Quick Charge 2.0 technology, but due to the rather large capacity, a full charge takes a little more than 2 hours.
In the Zuk Z2, the battery capacity dropped by 600mAh - 3500mAh. However, do not forget that the screen size has become smaller and the processor is more energy efficient. The smartphone is fat, but there are no problems with autonomy. In active use, the Zuk Z2 lasts for a day or more. If you are not a fan of constantly updating the news feed in social networks or play at any free moment, then squeeze out three days from your smartphone. Unfortunately, there is no information about fast charging. However, be that as it may, the Zuk Z2 charges very quickly - from 0 to 100% in just over an hour and a half.
In the Zuk Z2 and Zuk Edge, the manufacturer installs 3100 mAh batteries to please the slim body. I would like, of course, more, but these are quite decent numbers, given the Super AMOLED matrices, which are not famous for their high gluttony. As a result, we get about 9 hours in video playback mode (the Zuk Edge has a little less) or a day in active mode. Not the highest battery capacity can be offset by the Qualcomm Quick Charge 3.0 fast charging function, which "refills" the battery in less than an hour and a half.
Time autonomous work may differ (and very much) depending on the Zuk firmware.
Lenovo Zuk price where to buy
Conclusion
Lenovo's Zuk line is undoubtedly worth considering. Despite the shortcomings, which are not so many, Zuk smartphones are becoming favorites in opposition to other solutions with similar characteristics. As you probably understood, the key point in the dispute is the price, at the sight of which you expect to contemplate the budget specifications. Lenovo Zuk are smartphones for those users who, for the sake of powerful hardware for a penny, are ready to put up with average cameras, and most importantly - far from perfect firmware.
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. | 68.88 mm (millimeters) 6.89 cm (centimeters) 0.23 ft (feet) 2.71 in (inches) |
| Height Height information - refers to the vertical side of the device in its standard orientation during use. | 141.65 mm (millimeters) 14.17 cm (centimeters) 0.46 ft (feet) 5.58 in (inches) |
| Thickness Information about the thickness of the device in different units measurements. | 8.45 mm (millimeters) 0.85 cm (centimeters) 0.03 ft (feet) 0.33 in (inches) |
| The weight Information about the weight of the device in different units of measurement. | 149 g (grams) 0.33 lbs (pounds) 5.26 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. | 82.45 cm³ (cubic centimeters) 5.01 in³ (cubic inches) |
| Colors Information about the colors in which this device is offered for sale. | Black White |
| Materials for the manufacture of the case Materials used for the manufacture of the device body. | Fiberglass Aluminium alloy |
SIM card
The 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 |
| CDMA CDMA (Code-Division Multiple Access) is a channel access method used in communications in mobile networks. Compared to other 2G and 2.5G standards like GSM and TDMA, it offers faster data transfer rates and connectivity more consumers at the same time. | CDMA 800 MHz |
| W-CDMA W-CDMA (Wideband Code Division Multiple Access) is the air interface used by 3G mobile networks and is one of the three main air interfaces of UMTS along with TD-SCDMA and TD-CDMA. It provides even faster data transfer rates and the ability to connect more consumers at the same time. | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 1900 MHz W-CDMA 2100 MHz |
| TD-SCDMA TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is a 3G standard for mobile networks. It is also called UTRA / UMTS-TDD LCR. It was developed as an alternative to the W-CDMA standard in China by the Chinese Academy of Telecommunication Technologies, Datang Telecom and Siemens. TD-SCDMA combines TDMA and CDMA. | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 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 850 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) |
Mobile technology and data rates
Communication between devices in mobile networks is carried out using technologies that provide different data rates.
Operating system
An operating system is the system software that controls and coordinates the operation of the hardware components on a device.
SoC (System on a Chip)
A system on a chip (SoC) integrates all the major hardware components of a mobile device into a single chip.
| SoC (System on a 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 820 MSM8996 |
| 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. | 14 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. | 2x 2.15 GHz Kryo, 2x 1.6 GHz Kryo |
| Processor size The bit size of the processor is determined by the size (in bits) of registers, address buses and data buses. 64-bit processors offer better performance than 32-bit processors, which in turn are more powerful than 16-bit processors. | 64 bit |
| Instruction set architecture Instructions are commands with which the software sets / controls the operation of the processor. Information about the instruction set (ISA) that the processor can execute. | ARMv8-A |
| 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 is 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. | 32 KB + 32 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. | 1536 KB (kilobytes) 1.5 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. | 4 |
| 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). | 2150 MHz (megahertz) |
| Graphics processing unit (GPU) A graphics processing unit (GPU) handles computation for a variety of 2D / 3D graphics applications. V mobile devices it is used most often by games, consumer interface, video applications, and more. | Qualcomm Adreno 530 |
| Clock frequency GPU Speed is the clock speed of the GPU and is measured in megahertz (MHz) or gigahertz (GHz). | 624 MHz (megahertz) |
| The amount of random access memory (RAM) Random access memory (RAM) used 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) 4 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 that 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. | 1866 MHz (megahertz) |
Built-in memory
Each mobile device has built-in (non-removable) fixed memory.
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 in (inches) 127 mm (millimeters) 12.7 cm (centimeters) |
| Width Approximate screen width | 2.45 in (inches) 62.26 mm (millimeters) 6.23 cm (centimeters) |
| Height Approximate screen height | 4.36 in (inches) 110.69 mm (millimeters) 11.07 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 indicates 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. | 441 ppi (pixels per inch) 173 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 the screen can display. | 24 bit 16777216 flowers |
| Screen footprint The approximate percentage of the display area on the front of the device. | 70.86% (percent) |
| Other characteristics Information about other functions and features of the screen. | Capacitive Multitouch Scratch resistant |
| Corning Gorilla Glass 4 2.5D curved glass screen LTPS (Low Temperature PolySilicon) Oleophobic (lipophobic) coating 1000: 1 contrast ratio 400 cd / m² 70% NTSC |
Sensors
Different sensors perform different quantitative measurements and convert physical metrics into signals that can be recognized by the mobile device.
Main camera
The main camera of a mobile device is usually located on the back of the body and is used for photo and video shooting.
| Sensor model | Samsung S5K2M8 |
| Sensor type | ISOCELL |
| Diaphragm | f / 2.2 |
| Focal length | 3.88 mm (millimeters) |
| Flash type The most common types of flashes in mobile cameras are LED and Xenon flashes. LED-flashes give softer light and, unlike brighter xenon ones, are also used for video filming. | LED |
| Image Resolution One of the main characteristics of cameras on mobile devices is their resolution, which shows the number of pixels horizontally and vertically in an image. | 4160 x 3120 pixels 12.98 MP (megapixels) |
| Video Resolution Information about the maximum supported resolution for video recording by the device. | 3840 x 2160 pixels 8.29 MP (megapixels) |
Information about the maximum number of frames per second (fps) supported by the device when shooting video at maximum resolution. Some of the main standard video capture and playback speeds are 24p, 25p, 30p, 60p. | 30 frames / sec (frames per second) |
| Specifications Information about other software and hardware features associated with the main camera to improve its functionality. | 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 |
| Pixel size - 1.34 μm PDAF + CAF dual-mode focus 5-element lens |
Additional camera
Additional cameras are usually mounted above the screen of the device and are used mainly for video calls, gesture recognition, etc.
| Sensor model Information about the manufacturer and model of the photocell used in the camera of the device. | OmniVision OV8865 |
| Sensor type Digital cameras use photo sensors to take photographs. The sensor, as well as the optics, are one of the main factors in the quality of a camera in a mobile device. | CMOS BSI 2 (backside illumination 2) |
| 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. | 4.61 x 3.47 mm (millimeters) 0.23 in (inches) |
| Pixel size The smaller pixel size of the photosensor allows more pixels to be used per unit area, thus increasing the resolution. On the other hand, a smaller pixel size can have a negative impact on image quality when high levels sensitivity (ISO). | 1.414 μm (micrometers) 0.001414 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 the full frame sensor (43.3 mm) to the photo sensor specific device. | 7.49 |
| Diaphragm Aperture (f-number) is the size of the aperture opening that controls the amount of light reaching the photosensor. A lower f-number means a larger aperture opening. | f / 2.0 |
| Focal length Focal length is the distance in millimeters from the photosensor to the optical center of the lens. The equivalent focal length providing the same field of view with a full frame camera. | 3.47 mm (millimeters) 26 mm (millimeters) * (35 mm / full frame) |
| Image Resolution Information about the maximum resolution of the secondary camera when shooting. In most cases, the resolution of the secondary camera is lower than that of the primary camera. | 3264 x 2448 pixels 7.99 MP (megapixels) |
| Video Resolution Information about the maximum supported resolution for video recording additional camera. | 1920 x 1080 pixels 2.07 MP (megapixels) |
| Video - frame rate / frames per second. Information about the maximum number of frames per second (fps) supported by the secondary camera when shooting video at maximum resolution. | 30 frames / sec (frames per second) |
| Wide-angle lens - 78.9 ° 5-element lens |
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.
USB
USB (Universal Serial Bus) is an industry standard that allows different electronic devices to exchange data.
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 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. | 3500 mAh (milliampere-hours) |
| Type of The type of battery is determined by its structure and, more precisely, by the chemicals used. Exists different types lithium-ion and lithium-ion-polymer batteries are most commonly used in mobile devices. | Li-polymer |
| Talk time 2G Talk time in 2G is the period of time during which the battery charge is completely discharged during a continuous conversation on a 2G network. | 33 h (hours) 1980 min (minutes) 1.4 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. | 420 h (hours) 25200 min (minutes) 17.5 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. | 33 h (hours) 1980 min (minutes) 1.4 days |
| 3G standby time Standby time in 3G 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 3G network. | 420 h (hours) 25200 min (minutes) 17.5 days |
| Adapter output power Information about the strength of the electric current (measured in amperes) and electrical voltage(measured in volts) supplied by Charger(output power). Higher power output provides faster battery charging. | 5.3 V (volts) / 2.5 A (amps) |
| Fast charging technology Fast charging technologies differ from each other in terms of energy efficiency, supported output power, control over the charging process, temperature, etc. The device, battery and charger must be compatible with fast charging technology. | Qualcomm Quick Charge 3.0 |
| Specifications Information about some additional characteristics of the device's battery. | Fast charging Non-removable |
It looks like things are going well in Lenovo, because in addition to its anti-crisis mobile gadgets the company also decided to release smartphones under the new ZUK brand. Of course, if you remember a device like Lenovo Zuk Z1, which never became a hit, one should not expect any breakthrough from the company. Perhaps this was due to the fact that the smartphone is not fully adapted to the Russian market, and possibly an abundance of much more interesting competitors, such as Xiaomi Mi 4 or Meizu MX5. Anyway, the announcement took place Lenovo ZUK Z2 that needs to catch up.
Design
Given that the brand is only 70 percent owned by Lenovo, engineers have the right to create devices from scratch, which in theory means the implementation of fresh ideas. Yes, the design of Lenovo smartphones has always been as simple as possible. New anyway Lenovo Zuk Z2 got a rather laconic design. Available in two color options: titanium black and white ceramic.
The smartphone is made in the form of a rectangle with smooth corners. The edges are not rounded, which will even delight the user, fed up with iPhone-like products that repeat the outlines of the iPhone 6. But even in this case, it cannot be said that the developers were not inspired by Apple products before creating the design, however, they did it based on the Apple iPhone 5 smartphone. True, unlike him, in this phone the "home" button is not round, but rectangular and looks very harmonious thanks to the smooth rounded corners.
Specifications
The filling can be called top-end, because the Snapdagon 820 series is installed in the smartphone, which is regularly working in a dozen of flagships. In combination with the Adreno 530 video chip, as well as with four gigabytes of RAM, the smartphone can be safely taken for any resource-intensive tasks. Of course, there were some drawbacks: the device does not support memory expansion, although 64 gigabytes should be enough for most everyday needs. There is also one significant plus - a 3500 mAh battery with fast charging function (83 percent in just half an hour). As for the camera, the phone is equipped with a 13-megapixel module with an aperture of 2.2, which is an average figure. The selfie camera has a resolution of 8 megapixels and aperture f / 2.0 optics. Nice design and top-end processor will be the reason for buying this gadget.
