Phone Redmi Note 4 32 GB black. Mediocre sound quality

Simply space!

Reincarnation of a familiar device: monolithic body, ten nuclear processor, support for two SIM cards, an ultra-capacious 4100 mAh battery, as well as the latest OS - MIUI.

Performance and durability are even higher! Fiction turns into reality!

• Entire metal body
• Battery capacity - 4100 mAh
• Newest operating system MIUI

Fascinating metal lines

Materials High Quality, innovative methods of processing monolithic aluminum ingot, as well as polishing technology to mirror reflection provide an extra smooth and homogeneous surface texture.

Smooth and clear contours thanks to diamond cutting technology

The Redmi Note developers approached their device with sincere attention and care.

In the production of the Xiaomi device, diamond cutting technology is used. Everything from the cutouts for the volume buttons and lock function to the frames of the gadget, the edges of the lenses, and the fingerprint scanner are cut with pinpoint precision and meticulously processed. Everything to make you feel comfortable and safe!

The elegant texture of the surface of the case, pleasant to the eye and to the touch, is obtained as a result of sandblasting, thanks to which the coating will last much longer in its original form.

Glass 2.5D

Special glass with a curve at the edges serves to protect the 5.5-inch diagonal screen.

The advantages of 2.5D glass, as opposed to traditional flat glass, include a smoother surface that is pleasant to touch, as well as natural, flawless color rendition.

Integrated antenna

You might think that a strip of plastic is glued to a metal body for the sake of art. However, it plays a much more significant role as a signal enhancer. And at the same time it looks minimalistic, but no less perfect.

MediaTek Helio X20 - powerful processor

• frequency - 2.1 GHz
• bit depth - 64 bit

The new product from Xiaomi, equipped with an innovative and high-performance processor, broke the records of its predecessor, gaining 60 percent more performance and 30 percent less energy consumption!

The processor will do an excellent job of watching movies, online games, and launching applications at lightning speed - all this thanks to ten cores and clock frequency up to 2.1 GHz!

Now the current load determines the energy consumption mode, which has become more economical than ever. This will allow you to get the most out of online games and cool off on simple tasks, increasing the durability of your smartphone.

"Long-lasting" battery

Thanks to the capacious battery, you can afford to both work and play throughout the day! This may seem surprising to some, but for Redmi Note 4 this is commonplace.

Increasing the energy density to 713 Wh/l made it possible to reach a compromise between large capacity and low battery weight. Such a gadget with a thin body weighing 175 grams and a capacious battery still exists! At the same time, it can last a couple of days without recharging, 1 day of intense gaming and half a day with the GPS function turned on.

Optimizing user virtual space

The gadget from Xiaomi allows you to create not just one space for different users, but several at once! The "second space" may contain fundamentally different programs and objects that can be configured. Simply create a secret password for another space and switch between spaces by entering the secret word on the locked screen.

Thus, you can easily “copy” the functions of the program within one device for the purpose of logging in under a different account.

High resolution camera

The photo quality of Redmi Note 4 will amaze even a photographer with professional skills.

Why does the camera produce such a high-quality image? The reasons are simple - a 13-megapixel matrix, an aperture of f 2.0, 5 lenses, PDAF autofocus like in professional devices, and an HDR shooting function.

Advanced photo editing capabilities will undoubtedly help develop your creative skills. To do this, the user has access to 9 types of filters, 59 different stickers, as well as the function of adding text. With such a variety of possibilities you will never get bored!

In addition to all this, the gadget’s camera allows you to take selfies and videos using a 5-megapixel front camera with f 2.0 aperture, recognize faces, and make calls using video calling.

Recognition this second!

Using a fingerprint scanner, you can not only unlock, but also pay for goods online, as well as open confidential files in the “second space” or activate children's mode.

The scanning process has been adjusted to eliminate false recognitions and increase unlocking speed.

Improve functionality

Although the standard configuration allows you to store all your secret photos, videos and game files, if your appetite grows, you can easily expand the memory up to 128 gigabytes by inserting a MicroSD card into the memory slot.

Clear FullHD screen

The Note 4 device comes in two memory variants:

• pixel density - 401 pixels per inch
• contrast ratio 1000 to 1
• color gamut 72% NTSC

The smartphone works on the latest technologies, allowing high-quality display of information.

Now the sun's rays are no obstacle to entertaining viewing of photos and videos!

For comfortable work in the dark or in a dark room, you can adjust the brightness level of the display backlight to suit your needs so as not to tire your eyes, or adjust the brightness in automatic mode.

Activate the picture mode that suits you best, and the display will take on a papery color with reduced eye-straining blue tint.

Modern look

You can choose between gold, silver or dark gray color versions of the device. Moreover, in the first and second cases the front panel will be white, and in the last - black.

There are touch keys on the front panel.

The top edge of the gadget houses a mini Jack 3.5 jack for headphones, an infrared port through which you can control household appliances, and a light sensor. The microphone, microUSB connector and speakers are comfortably located on the bottom edge.

Xiaomi Redmi Note 4 is a powerful and affordable smartphone with a large screen. In August 2016, the official announcement of the device took place. At the same time, the gadget went on sale in the fall of the same year.

Appearance and ergonomics

Compared to its predecessor, the Xiaomi Redmi Note 4 smartphone has received an updated design. Thanks to the beveled and thin edges, the device fits very comfortably in the hand. There is a stylish 2.5D glass covering the screen. If you run your finger across the display, you will feel exactly smoothness. Under the metal body there is a 4100 mAh battery. On the back side at the top and bottom there are shiny dividing lines, which are made of anodized aluminum. As for the speakers, they are located at the bottom end for better convenience.

It is worth highlighting the beveled frame, which creates a sophisticated silhouette. The device received a premium appearance, which is confirmed by the quality of the materials used. The round fingerprint scanner is located in a convenient place - on the rear panel. There are three navigation indicators on the front touch buttons. Available colors: grey, gold and black. Dimensions: height - 151 mm, thickness - 8.4 mm, width - 76 mm, weight - 175 g.

Display

The high-quality and large 5.5-inch screen in Redmi Note 4 has a resolution of 1920 by 1080 pixels. This IPS panel supports 10 simultaneous touches and is also covered with an elegant protective glass with oleophobic coating. The display is of the highest quality, as it does not fade in the sun, and the color palette remains contrasting and rich. Due to the high resolution, the detail of the picture is at a decent level. Through the settings you can freely change the color scheme, or activate the reading mode.

Hardware and performance

The new Redmi Note 4 is equipped with a progressive mid-class processor represented by the Snapdragon 625 chip. It consists of eight cores and is also implemented using one of the most advanced technologies (14 nm FinFET). The clock frequency of this processor from Qualcomm is 2000 MHz. The amount of RAM is 4 GB, the storage capacity for files is 64 GB. There is also a cheaper version with 3GB of RAM and 32GB of storage. If it is necessary to increase free space, this is done using MicroSD cards up to 128 GB. Out of the box, the user is greeted with Android 6.0, but it is possible to upgrade to a more recent version of the OS. MIUI 8 acts as a proprietary interface. There are no restrictions on the number of desktops, and programs can be placed in specific folders. The user is allowed to duplicate the interface. The smartphone confidently runs all games, but only some of them begin to slow down at maximum graphic settings.

It is worth noting that Xiaomi Redmi Note 4 also exists in another modification, namely with the MediaTek Helio X20 processor. This chip operates at a frequency of 2100 MHz and also has ten cores. In the AnTuTu test, the device reaches 80,000-85,000 points. This applies to both modifications of the device, which have approximately the same performance.

Communication and sound

Although the slots on the bottom end of the Xiaomi Redmi Note 4 are intended for two multimedia speakers, here the sound element is presented in a single copy (the second is for the microphone). At the same time, the speaker has solid power and a large volume reserve. Voice calls occur without obvious problems. There is support for VoLTE networks, and for two SIM cards.

Camera

The Redmi Note 4 uses a 13-megapixel camera with reverse illumination and phase autofocus. There is also a dual flash, which will definitely come in handy at night. The module has an aperture ratio of 2.0 and consists of 5 lenses. As for the pixels, they are larger, allowing more light to be captured. The camera performs well in low light conditions. And the built-in image processing system significantly improves each individual frame. There are also quite flexible settings. On the front there is a 5-megapixel front camera with several modes for creating perfect self-portraits. The front module has acquired live filters, as well as facial recognition indicating age and gender.

conclusions

Redmi Note 4 turned out to be a thoughtful evolutionary smartphone. It not only inherited almost all the best features from its successful predecessor, but also acquired some completely new features. For its price (about $200), the device looks very decent. We especially need to highlight the excellent performance, chic design, high-quality materials and a nice large screen.

Pros:

• Aluminum body with sleek appearance.
• Large and contrasting display.
• Very good performance.
• Fast and convenient fingerprint scanner.
• Really powerful battery.

Minuses:

• Limited hybrid SIM slot.
• A lot of different versions of this smartphone.

Technical characteristics of Xiaomi Redmi Note 4

Prices

Video reviews

Device type:

Smartphone/Communicator

2G standards:

Standard mobile communications defines the technologies used and the principle of constructing mobile communication networks. Mobile communication networks are usually divided into analog (NMT, AMPS) and digital (D-AMPS, GSM, CDMA, WCDMA, UMTS), and also classified by generation (generation) stages of development of the standards themselves.
GSM(Global System for Mobile Communications) - the most popular and widespread standard cellular communications second generation 2G almost all over the world. In our country, as in most European countries, frequencies of 900 and 1800 MHz are allocated for this standard. In the countries of the American continent, it is customary to use frequencies of 850 and 1900 MHz.
The widespread introduction of GSM to replace outdated analogue networks has made it possible to significantly expand the subscriber base and the range of services provided, making cellular communications widely available. However, the specifics of GSM limit the services currently in demand based on high-speed Internet access.

GSM 1800 / GSM 1900 / GSM 850 / GSM 900

3G standards:

3G(Third Generation) - Third generation mobile communication technologies based on packet data transmission. Third generation 3G networks usually operate in the range of about 2 GHz, allowing data transfer at a speed comparable to a dedicated home Internet. In addition to standard voice telephony services, 3G networks are initially focused on various multimedia services, such as video telephony and video conferencing, online viewing terrestrial television and movies, listening to Internet radio, etc. The most common third generation communication standard is WCDMA (UMTS), operating in most European countries, incl. in Russia and CIS countries.

UMTS 1900 / UMTS 2100 / UMTS 850 / UMTS 900

4G standards (LTE):

4G (Fourth generation)- The fourth generation of mobile communications, characterized by high speed data transmission and improved quality of voice communication. Fourth generation networks include mobile data technology LTE(Long Term Evolution). Data transfer speeds using the LTE standard theoretically reach 173 Mbit/s for reception (download), and 58 Mbit/s for upload (upload).

LTE 1800 / LTE 2100 / LTE 2600 / LTE 800 / LTE 850 / LTE 900

VoLTE:

VoLTE (in English Voice over LTE - voice over LTE)- voice transmission technology over the LTE network, which allows you to provide voice services and deliver them as a data stream over LTE. MegaFon is the first telecom operator in Russia to launch VoLTE without restrictions on the type of users: all subscribers only in the Capital region, regardless of tariff plan and the billing system used, they can connect to the “HD Voice in 4G” service and make calls using the new technology using mobile devices supporting VoLTE of the MegaFon network.

Number of SIM cards:

Accumulator battery:

The difference in the chemical composition of batteries determines their physical and consumer parameters.
Ni-Cd(Nickel - Cadmium) and Ni-Mh(Nickel - Metal Hydride) batteries are quite heavy and bulky. Being not completely discharged before recharging, they are prone to loss of capacity (memory effect), and therefore require periodic maintenance (charge-discharge, so-called training).
Against, Li-Ion(Lithium Ion) and Li-Pol(Lithium - Polymer) batteries do not have these disadvantages. However, they lose their charge faster at low temperatures and have poor resistance to drops. Ease of maintenance and comparatively smaller size and weight were decisive factors for their active use.

Li-Pol, 4100 mAh

NFC module:

NFC(Near Field Communication, "near field communication") - technology wireless communication, which makes it possible to exchange data between devices located at a distance of up to 20 centimeters. There are many possible uses for NFC technology: transferring files between devices, connecting to accessories, using the device as a payment card, etc.

Equipment:

Phone, network charger with USB connector, USB cable, key for removing SIM card, warranty card, instructions, packaging

Guarantee period:

Memory and processor

Volume random access memory(RAM):

RAM, which is used for the operation of programs and applications in the device. The speed of the device depends on its size. The actual free memory capacity may differ from that specified by the manufacturer.

Built-in memory capacity:

Built-in device memory- the total amount of memory intended for both storing user data and applications installed by the manufacturer, and also includes a section with the Operating System. The actual free memory capacity may differ from that specified by the manufacturer.

Display and keyboard

Display type:

TFT IPS- High quality liquid crystal matrix. It has wide viewing angles, one of the best indicators of color rendering quality and contrast among all those used in the production of displays for portable equipment.
Super AMOLED- if a regular AMOLED screen uses several layers, between which there is an air gap, then in Super AMOLED there is only one such touch layer without air gaps. This allows you to achieve greater screen brightness with the same power consumption.
Super AMOLED HD- differs from Super AMOLED in its higher resolution, thanks to which you can achieve 1280x720 pixels on a mobile phone screen.
Super AMOLED plus- this is a new generation of Super AMOLED displays, differs from the previous one by using a larger number of subpixels in a conventional RGB matrix. The new displays are 18% thinner and brighter than displays made using the old PenTile technology.
AMOLED- an improved version of OLED technology. The main advantages of the technology are significantly reduced power consumption, the ability to display a larger color gamut, reduced thickness and the ability of the display to bend slightly without the risk of breaking.
Retina-high pixel density display designed specifically for Apple technology. Pixel density per Retina displays such that individual pixels are indistinguishable to the eye at a normal distance from the screen. This ensures the highest image detail and significantly improves the overall viewing experience.
Super Retina HD- the display is made using OLED technology. The pixel density is 458 PPI, the contrast reaches 1,000,000:1. The display has a wide color gamut and unsurpassed color accuracy. Pixels in the corners of the display are smoothed at the sub-pixel level, so edges are not distorted and appear smooth. The Super Retina HD reinforcing layer is 50% thicker. It will be harder to break the screen.
Super LCD is the next generation of LCD technology, it is characterized by improved characteristics compared to earlier LCD displays. The screens not only have wide viewing angles and better color reproduction, but also lower power consumption.
TFT- A common type of liquid crystal display. Using an active matrix controlled by thin-film transistors, it is possible to significantly increase the performance of the display, as well as the contrast and clarity of the image.
OLED- organic electroluminescent display. It consists of a special thin-film polymer that emits light when exposed to an electric field. This type of display has a large reserve of brightness and consumes very little energy.

Touchscreen:

The touch display is a conventional graphic display, on top of which either a pressure-sensitive substrate or infrared sensors are placed. Such a display reacts appropriately to presses with a stylus (pen) or fingers and is more in a convenient way interface interaction with the device rather than a keyboard.

Additional display:

As a rule, an additional display is installed in folding phones. Depending on the model of the device, the additional display may display the caller's number, time, signal reception level and battery charge level.

Photo/Video camera

Main camera:

Thanks to the built-in digital camera It's very easy to capture important moments in life or shoot a video. Modern smartphone cameras are often not inferior in quality to real cameras. Using two, three or even four modules allows you to take wide-format photographs, photograph distant objects and achieve the effect of artistic background blur - bokeh.

Autofocus:

Flash:

Designed for short-term and intense illumination of objects during shooting. IN cell phones It can be xenon (which is based on an electric gas-discharge lamp filled with xenon) or LED (LEDs act as a light source).

LED

Main camera picture size:

Front camera picture size:

Maximum resolution of images obtained when photographing using the built-in camera. It is measured in the number of pixels horizontally and vertically. The higher the number of pixels, the clearer your photos will be.

Communications and interfaces

WiFi:

WiFi(IEEE 802.11) is a high-speed wireless connection technology aimed at building corporate, private or public networks. The technology is based on the use of so-called multiple access points (hot-spots), to which client terminals are connected. Wi-Fi technology is described by many specifications (standards), which is reflected in their name by the last letter (for example, IEEE 802.11g).
Based on Wi-Fi technology, public Internet access points have been created in cafes, hotels, airports and other places. Connecting a device to such points is as simplified as possible and requires entering a network identifier (SSID), username and password.

Bluetooth module:

Technology Bluetooth implements wireless connection devices over a secure radio channel in the 2.4 GHz band. The technology is based on the use of profiles (services) as tools for performing specific tasks (audio gateway, hands-free, headset, file transfer, dial-up networking, serial port, etc.). Each profile contains a specific set of operations and defines possible areas of interaction between devices.
With a Bluetooth connection, devices can be located at a distance of up to ten meters from each other, and therefore, the development of wireless accessories is one of the prerogatives of this technology.

Bluetooth stereo support:

bluetooth stereo or A2DP(Advanced Audio Distribution Profile) - a Bluetooth profile or service designed to transmit music in stereo sound. Devices that support the A2DP profile allow you to listen to music using wireless bluetooth headphones, thereby freeing you from the limitations imposed by traditional wired stereo headsets.

Connection to PC:

By connecting the device to a personal computer, you can quickly and conveniently edit telephone entries or organizer notes, save important SMS messages or backups contents of the device, download various pictures, ringtones, photos or video clips, go online.
Depending on the characteristics of the device, connection to a PC is carried out using interface cable, IR port, Bluetooth or Wi-Fi modules.

Audio jack:

Type of connector for connecting external audio devices (wired headsets, headphones, speakers). In many modern smartphones A universal connector is used for audio output, charging and data transfer, for example, USB Type-C or Lightning.

Messages

SMS:

SMS(Short Messages Service) or short text messages are alternative way exchange of information in cellular networks. Most devices support receiving and sending SMS messages in both English and Russian. Type the desired text, for example, “Darling, I’m home. I kiss you and am waiting for you,” and within a few seconds it will be delivered to the mobile device you specified.
In addition, based on the SMS service, a variety of SMS services are provided, from weather forecasts and exchange rates, to dating and downloading simple melodies or pictures.

MMS:

MMS(Multimedia Messaging Service) is a universal technology for exchanging multimedia messages, which is a development of the idea of ​​short SMS messages. In addition to plain text, an MMS message can contain color pictures and photographs, sound files of various formats or short videos. In addition, MMS messages can consist of several frames, representing a kind of animation.
When sending multimedia messages, GPRS or EDGE packet data transmission is used. You can send MMS messages either to a device compatible with this technology or to email.

Email:

Built-in email client is an analogue of programs for working with by email on personal computer, but in a slightly limited version. Typically, an E-mail client allows you to send and receive emails, as well as small attachments in the form of files with pictures or melodies.

Alerts

Vibration alert:

In situations where the use of sound notification is not entirely appropriate or is completely useless, built-in vibration alert will inform you with a slight trembling of the device body about incoming call or other event. For example, at a lecture or meeting, near a busy highway or at a noisy party.

Additional functions

Sensors:

Accelerometer(or G-sensor) - sensor of the device’s position in space. As a main function, the accelerometer is used to automatically change the orientation of the image on the display (vertical or horizontal). Also, G-sensor is used as a pedometer, it can be controlled various functions device by turning or shaking.
Gyroscope- a sensor that measures rotation angles relative to a fixed coordinate system. Capable of measuring rotation angles in several planes simultaneously. A gyroscope together with an accelerometer allows you to accurately determine the position of the device in space. Devices that use only accelerometers have lower measurement accuracy, especially when moving quickly. Also, the capabilities of the gyroscope can be used in modern games for mobile devices.
Light sensor- a sensor that sets the optimal brightness and contrast values ​​for a given light level. The presence of a sensor allows you to increase the battery life of the device.
Proximity sensor- a sensor that detects when the device is close to your face during a call, turns off the backlight and locks the screen, preventing accidental clicks. The presence of a sensor allows you to increase the battery life of the device.
Geomagnetic sensor- a sensor for determining the direction of the world in which the device is directed. Tracks the orientation of the device in space relative to the magnetic poles of the Earth. The information received from the sensor is used in mapping programs for terrain orientation.
Atmospheric pressure sensor- sensor for precise measurement of atmospheric pressure. It is part of the GPS system, allows you to determine altitude above sea level and speed up location determination.
Touch ID- fingerprint identification sensor.

Accelerometer / Geomagnetic / Gyroscope / Light / Proximity

Satellite navigation:

GPS(Global Positioning System - global positioning system) - satellite system navigation, providing measurement of distance, time, speed and determining the location of objects anywhere on Earth. The system is developed, implemented and operated by the US Department of Defense. The basic principle of using the system is to determine location by measuring distances to an object from points with known coordinates - satellites. The distance is calculated by the delay time of signal propagation from sending it by the satellite to receiving it by the antenna of the GPS receiver.
GLONASS(Global Navigation Satellite System) - Soviet and Russian satellite navigation system, developed by order of the USSR Ministry of Defense. The measurement principle is similar to the American GPS navigation system. GLONASS is designed for operational navigation and timing support for land, sea, air and space-based users. The main difference from the GPS system is that GLONASS satellites in their orbital motion do not have resonance (synchrony) with the rotation of the Earth, which provides them with greater stability.

The material from which the device body is made. Most mobile device cases are made of plastic, less often metal. Each material has its pros and cons that should be considered when purchasing a mobile phone.

Aluminum

• 2G, 3G,
• Android 6.0
• Wi-Fi, Bluetooth

• Display 5.5", 1080x1920 Pix
• 2 cameras: 13 Mpix and 5 Mpix
• 32 GB + MicroSD up to 128 GB
• 2 SIM cards

*Specifications and scope of delivery, including pre-installed or optional software, are subject to change by the manufacturer without prior notice.

Hi all. Today we are reviewing the Xiaomi Redmi Note 4X (3\32GB) smartphone. We will also compare it with the previous model Redmi Note 4 without the X prefix. Well, in the end, as a bonus, we try on the famous Nillkin bumper on a smartphone, and by the way it is universal for 4 and 4X.
In general, the smartphone is available in 2 options: 3\32GB and 4\64GB. At the time of ordering, the difference in them was about $30, so I naturally decided to save money and took 3\32GB, since 3GB of RAM is enough based on the experience of using Redmi Note 3 pro. Now there is a coupon for version 4\64 (it is located in the name of the product on the site) and the price is almost the same as what I paid for a smaller amount of memory. It's a shame, but what can you do... So, let's move on to the comparison review.

In general, Xiaomi Redmi Note 4X is considered the best-selling and most successful smartphone after Redmi Note 3 Pro. 4X is also secretly considered the Pro version of Redmi Note 4. But there is one thing... Redmi Note 4 has an MTK Helio X20 10 core processor, which scores almost 20,000 more Antu points in synthetic tests. However, this is in theory, in practice, after 3-4 minutes of play, throttling occurred (processor overheating, lower frequencies) and in the same World of Tanks Blitz the frame rate dropped from 55-60 frames at maximum settings to 25-29 frames. That is why Redmi Note 4 received negative feedback from its owners and was quickly discontinued. That is why now there are often promotions on it and the price is very attractive.
If you are not interested in gaming performance, then take Note 4 - a very good smart phone, but if you play games, then take Redmi Note 4X 4\64GB. Moreover, for 150 evergreens (on the product page, by the way, it’s obvious, the description was clearly copied from Redmi 4 and everywhere there is information about Note 4 - MTK processor, etc., the 4X has a Snapdragon 625, you can see this in the pictures)…

Technical characteristics of the smartphone.

FRAME
Dimensions - 15.1 * 7.6 * 0.85 cm
Weight - 165g (10 grams lighter than Note 4).
SIM
Dual Card Dual Standby (1 * Nano-SIM / 1 * Micro-SIM)

SCREEN
Screen type: 2.5D Arc Screen
Screen size: 5.5inch
Screen resolution: 1920 x 1080 (FHD)
Pixels Per Inch (PPI): 403

PLATFORM
OS - Android OS, v6 (Lollipop) MIUI8
CPU: Snapdragon 625 Octa Core 2.0GHz
GPU: Adreno 506

MEMORY
Slot for microSD memory card, up to 128 GB (installed instead of SIM cards 2)
RAM: 3GB RAM
ROM: 32GB

CAMERAS
Rear -13 MP, f/2.0, phase detection autofocus, LED flash
supports Geo-tagging, touch focus, face/smile detection, HDR, panorama
Video recording - 1080p@30fps
Front - 5 MP, f/2.2, 1080p@30fps

COMMUNICATIONS
802.11a/b/g/n/ac,(2.4G/5G dual-band WiFi network)
Bluetooth v4.2, A2DP
GPS (with A-GPS, GLONASS, BDS)
Infrared port
FM radio
microUSB v2.0 OTG

BATTERY
non-removable Li-Ion 4100 mAh battery
Available in colors
Dark Gray, Silver, Gold, Blue and Black.

By the way, about the color. For a while in China there was a rush for black Xiaomi smartphones, they came in a limited batch and were quickly sold out, so the cunning Chinese began to ask for an additional ~$10 for a black case. Now they seem to have delivered black Xiaomi and there shouldn’t be any problems with the color.

Contents of delivery.

Redmi Note 4X. It seems very thin due to the 2.5D glass and beveled back cover.

Front top side. Here is located front-camera 5MP, earpiece, light and proximity sensor, and indicator. At the top end there is a microphone for noise reduction, an IR port for controlling equipment and a 3.5mm headphone jack.

On the left side is a tray for SIM cards and microSD (combined tray: micro SIM + nano SIM or microSD). We’ll probably never see a separate slot for microSD. Although 64GB of memory, even 32GB is enough if you don’t waste your phone.

On the bottom edge there is a microphone, stereo speaker and microUSB input. The arrangement of the elements is 1 in 1 with Redmi Note 4, but the 4X does not have two screws.

On the front surface, below, there are home, back and menu buttons with white-moon backlighting.

Comparison of Redmi Note 4 and Redmi Note 4X

Bottom edge. The only difference is that Redmi Note 4 has 2 screws on both sides of the micro USB port.

The back covers are also almost identical, but the Redmi Note 4 has plastic, gray inserts, while the 4X has metal, silver inserts.

Another interesting difference that significantly affects the feel of the phone in your hand. Redmi Note 4 has sawed off edges and chamfers. In 4X they are simply rounded, like in Redmi Note 3 Pro. Because of this, the 4X feels much nicer in the hand and doesn't cut as much as the Note 4.

Again back covers close-up. One to one, but the inserts at the top of the Note 4 are made of gray plastic, while those of the 4X are silver metal.

The front sides are 100% identical. It is impossible to distinguish who is who.

Now let's look at the pivot table technical characteristics two smartphones.

Operating system and graphical shell.

Performance and benchmarks.

Epic Citadel result. On High Quality 60 frames per second.

At Ultra High Quality it produces 47 frames.

Antutu 6.7.2 showed 62,000 points. In PC mark the phone scores 5069 points. (redmi note 4X).

For comparison, let's look at the results for Redmi Note 4. Cold start and Note 4 gives as much as 84,000 points, but after warming up in the PC brand we get only 4,500 points. What I said and what was confirmed by the game WoT Blitz. Redmi Note 4 heats up and there is a sharp drop in performance. Redmi Note 4X does not have this; it is impossible to fire it up.

Information from the AIDA 64 program.

The sensors are all there as usual. Multi-touch for 10 touches. No NFC. WiFi is excellent, in the farthest corner it handles all 15Mbit.
GPS quickly determines location, which is the norm for Qualcomm.

Gaming performance.

We play for about 15 minutes and get 50 frames. The very minimum, in the chaos, dropped to 43 frames; it never dropped below 50.

Cloudy, no HDR.

Cloudy, with HDR. I somehow discovered this mode for myself. Allows you to sometimes get professional photos.

No HDR.

With HDR.

Bonus. Let's try on the Nillkin case.

Universal case for Redmi Note 4 and Redmi Note 4X.

It fits comfortably in the hand, but not as nice as on the RN3 Pro due to the sharp corners.

The old MiUI problem with notifications (they don’t arrive), this is no longer a problem for me, but it will cause trouble for beginners. (to solve, you need to add the application to autorun, remove the background activity restriction in the battery settings and configure the display of notifications).
- For me, a Samsung camera. Still, Sony shoots more pleasantly. (based on the experience of RN4, R3 Pro and RN3 Pro).

Thank you all for your attention!

I'm planning to buy +12 Add to favorites I liked the review +17 +33

Simply space!

A reincarnation of a familiar device: a monolithic body, a ten-core processor, support for two SIM cards, an ultra-capacious 4100 mAh battery, and the latest OS - MIUI.

Performance and durability are even higher! Fiction turns into reality!

• Entire metal body
• Battery capacity - 4100 mAh
• Latest MIUI operating system

Fascinating metal lines

High quality materials, innovative processing methods of monolithic aluminum ingot, as well as mirror polishing technology provide an extra smooth and homogeneous surface texture.

Smooth and clear contours thanks to diamond cutting technology

The Redmi Note developers approached their device with sincere attention and care.

In the production of the Xiaomi device, diamond cutting technology is used. Everything from the cutouts for the volume buttons and lock function to the frames of the gadget, the edges of the lenses, and the fingerprint scanner are cut with pinpoint precision and meticulously processed. Everything to make you feel comfortable and safe!

The elegant texture of the surface of the case, pleasant to the eye and to the touch, is obtained as a result of sandblasting, thanks to which the coating will last much longer in its original form.

Glass 2.5D

Special glass with a curve at the edges serves to protect the 5.5-inch diagonal screen.

The advantages of 2.5D glass, as opposed to traditional flat glass, include a smoother surface that is pleasant to touch, as well as natural, flawless color rendition.

Integrated antenna

You might think that a strip of plastic is glued to a metal body for the sake of art. However, it plays a much more significant role as a signal enhancer. And at the same time it looks minimalistic, but no less perfect.

MediaTek Helio X20 - powerful processor

• frequency - 2.1 GHz
• bit depth - 64 bit

The new product from Xiaomi, equipped with an innovative and high-performance processor, broke the records of its predecessor, gaining 60 percent more performance and 30 percent less energy consumption!

The processor is great for watching movies, playing online games, and launching applications at lightning speed - all thanks to ten cores and a clock speed of up to 2.1 GHz!

Now the current load determines the energy consumption mode, which has become more economical than ever. This will allow you to get the most out of online games and cool off on simple tasks, increasing the durability of your smartphone.

"Long-lasting" battery

Thanks to the capacious battery, you can afford to both work and play throughout the day! This may seem surprising to some, but for Redmi Note 4 this is commonplace.

Increasing the energy density to 713 Wh/l allowed us to reach a compromise between high capacity and low weight of the battery. Such a gadget with a thin body weighing 175 grams and a capacious battery still exists! At the same time, it can last a couple of days without recharging, 1 day of intense gaming and half a day with the GPS function turned on.

Optimizing user virtual space

The gadget from Xiaomi allows you to create not just one space for different users, but several at once! The "second space" may contain fundamentally different programs and objects that can be configured. Simply create a secret password for another space and switch between spaces by entering the secret word on the locked screen.

Thus, you can easily “copy” the functions of the program within one device for the purpose of logging in under a different account.

High resolution camera

The photo quality of Redmi Note 4 will amaze even a photographer with professional skills.

Why does the camera produce such a high-quality image? The reasons are simple - a 13-megapixel matrix, an aperture of f 2.0, 5 lenses, PDAF autofocus like in professional devices, and an HDR shooting function.

Advanced photo editing capabilities will undoubtedly help develop your creative skills. To do this, the user has access to 9 types of filters, 59 different stickers, as well as the function of adding text. With such a variety of possibilities you will never get bored!

In addition to all this, the gadget’s camera allows you to take selfies and videos using a 5-megapixel front camera with f 2.0 aperture, recognize faces, and make calls using video calling.

Recognition this second!

Using a fingerprint scanner, you can not only unlock, but also pay for goods online, as well as open confidential files in the “second space” or activate children's mode.

The scanning process has been adjusted to eliminate false recognitions and increase unlocking speed.

Improve functionality

Although the standard configuration allows you to store all your secret photos, videos and game files, if your appetite grows, you can easily expand the memory up to 128 gigabytes by inserting a MicroSD card into the memory slot.

Clear FullHD screen

The Note 4 device comes in two memory variants:

• pixel density - 401 pixels per inch
• contrast ratio 1000 to 1
• color gamut 72% NTSC

The smartphone uses the latest technologies that allow high-quality display of information.

Now the sun's rays are no obstacle to entertaining viewing of photos and videos!

For comfortable work in the dark or in a dark room, you can adjust the brightness level of the display backlight to suit your needs so as not to tire your eyes, or adjust the brightness in automatic mode.

Activate the picture mode that suits you best, and the display will take on a papery color with reduced eye-straining blue tint.

Modern look

You can choose between gold, silver or dark gray color versions of the device. Moreover, in the first and second cases the front panel will be white, and in the last - black.

There are touch keys on the front panel.

The top edge of the gadget houses a mini Jack 3.5 jack for headphones, an infrared port through which you can control household appliances, and a light sensor. The microphone, microUSB connector and speakers are comfortably located on the bottom edge.