Xiaomi Mix 4 Specs, review, opinions, comparisons

Xiaomi Mix 4 Specs, review, opinions, comparisons
Xiaomi Mix 4 pictures Xiaomi Mix 4 pictures Xiaomi Mix 4 pictures Xiaomi Mix 4 pictures Xiaomi Mix 4 pictures
Rate this smartphone

Xiaomi Mix 4 Top Specs

  • Release Date: 2021, August 10
  • Dimensions: 162.6 x 75.4 x 8 mm
  • Weight: 225 g
  • Screen: 6.67", AMOLED
  • Main Camera: Triple, 108 MP
  • Selfi Camera: Single, 20 MP
  • Memory: 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
  • CPU:
  • Battery: 4500 mAh
  • Sensors: Fingerprint (under display, optical), accelerometer, gyro, proximity, compass, color spectrum

For a full detailed phone specs keep reading the table with technical specifications, check video review, read opinions and compare with other models.

Compare with another smartphone

Technical specifications

General specs
Brand and model Xiaomi Mix 4
Release date 2021, August 10
Dimensions (HxWxD) 162.6 x 75.4 x 8 mm | 6.4 x 2.97 x 0.31 in
Weight 225 g | 7.94 oz
Body build Glass front (Gorilla Glass Victus), ceramic back, aluminum frame
Colors Ceramic Black, Ceramic White, Shadow Gray
Battery 4500 mAh, Li-Po, non-removable
Approximate price660 EUR
Technology AMOLED
Touchscreen capacitive touchscreen
Display colors 1B
Screen size 6.67" inc
Screen area 107.4 cm2
Screen format 20:9 (height:width)
Screen to body ratio87.6%
Screen resolution 1080 x 2400 px
PPI /points per inch/ 395 PPI
Screen protection Corning Gorilla Glass Victus
Other - Wide color gamut
-Dolby Vision
-800 nits (HBM)
Camera and Video
Rear camera, main 108 MP, Triple
Camera specs
-108 MP, f/1.9, 24mm (wide), 1/1.33'', 0.8µm, Dual Pixel PDAF, Laser AF, OIS
-8 MP, f/4.1, 120mm (periscope telephoto), PDAF, OIS, 5x optical zoom
-13 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06'', 1.12µm
Functions Dual-LED flash, HDR, panorama
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+
Front camera, selfie 20 MP, Single
Specifications 20 MP, 27mm (wide), 1/3.4", 0.8µm, under display
Functions HDR
Video 1080p@30fps
Operating system OS Android 11, MIUI 12.5
Chipset - Qualcomm SM8350 Snapdragon 888+ 5G (5 nm)
Processor CPU
- Octa-core (1x2.99 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680)
Graphics processor GPU - Adreno 660
External memory No
Internal memory 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Antutu 9 score834678
GeekBench 5 Single Core728
GeekBench 5 Multi-Core2784
Communication and Connectivity
SIM card Dual SIM (Nano-SIM, dual stand-by)
Network GSM / CDMA / HSPA / EVDO / LTE / 5G
Show all network frequencies:
Speed HSPA 42.2/5.76 Mbps, LTE-A, 5G
Edge Yes
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot
GPS Yes, with dual-band A-GPS, GLONASS, GALILEO, BDS, QZSS, NavIC
USB USB Type-C 2.0
Bluetooth 5.2, A2DP, LE, aptX HD
Music and Audio
Radio No
Headphone jack No
- 24-bit/192kHz audio
-Tuned by Harman Kardon
Other features
- Sensors - Fingerprint (under display, optical), accelerometer, gyro, proximity, compass, color spectrum , Infrared port
- Ultra Wideband (UWB) support
- Fast charging 120W, 100% in 15 min
-Fast wireless charging 50W, 100% in 28 min
-Quick Charge 4
-Power Delivery 3.0
- IP53, dust and splash protection

Xiaomi Mix 4 Video review - click to play

Xiaomi Mix 4 Review

The Chinese company Xiaomi is known for producing quality smartphones at an affordable price. In its product range you will also find premium models, marked as Mix. The new addition to the family in 2021 is called Xiaomi Mix 4. This model is characterized by the absence of frames and slots and the presence of a bunch of innovative solutions.


The body of Xiaomi Mix 4 is made of ceramic. If you are expecting plastic, you will not find it. The device weighs 225 grams and does not load who knows how many palms. The ceramic coating is pleasant to the touch and makes the device look expensive. You have a choice of colors - gray, white and black.

The back surface and pages of the screen are nicely rounded, which enhances the feeling of an endless display. In the upper left corner of the rear panel is a huge module with cameras, which protrudes slightly above the body. This position of the rear camera is convenient for all users and reduces the risk of lens contamination. The ceramic coating on the back helps to keep a minimum of fingerprints. In terms of dimensions, this Xiaomi model is one of the most convenient to use on the market in 2021.


Xiaomi Mix 4 has a satisfactorily large display - 6.67-inch, AMOLED, with a resolution of 2400 x 1080 pixels and a refresh rate of 120 Hz. In everyday use, you will not pay attention to the front camera - the screen is too captivating. The picture is flawless - close to natural colors, excellent contrast and brightness. The display looks limitless and will bring you maximum enjoyment while playing games and watching movies.


Beneath the sleek look of the Xiaomi Mix 4 lies the powerful Snapdragon 888 Plus chipset. It is the best you can see in an Android smartphone in 2021. This improved version of the SD888 clocks the core core Cortex-X1 up to 3 GHz. It now consumes much more energy and has a balanced mode in which the CPU clock speed is slightly limited. This reduces the risk of overheating and drains the battery more slowly. Maximum performance mode is also available in the Xiaomi Mix 4. Adreno 660 is responsible for the graphics.

As for memory, it is 8 or 12 GB of RAM and is complemented by 128, 256 or 512 GB of internal storage. There are four modifications. Given the fact that you can't increase storage, think carefully about which one to choose.

The smartphone runs Android 11 and MIUI 12.5.3, which has a lot of useful screen technology. As an example we can give DC Dimming and vision protection.


Xiaomi Mix 4 cameras are not inferior to the flagships of competitors. The main module is 108 MP with optical stabilization. It is complemented by a 13-megapixel ultra-wide-angle camera and an 8-megapixel telephoto lens. The ultra-wide angle camera has a visibility of 120 degrees. It will serve you well when creating panoramic photos. The telephoto lens supports 5x zoom.

The main module impresses with great photos, lots of detail and contrast. They are perfect for sharing on social networks. Sometimes they create the feeling that they were made with a professional device.

The front camera of the Xiaomi Mix 4 deserves special attention. It has been improved. When shooting in good light conditions, you will create unique shots. In the evening, the photos will be slightly blurred, but with practice you can achieve a better result.

Autonomous work

Xiaomi Mix 4 has a battery with a capacity of 4500 mAh. The manufacturer has provided support for 120W fast charging technology and -50W wireless charging. Due to the size of the display and the powerful processor, the charge may be insufficient. With intensive use you can count on 7-8 hours of battery life. In the set you get a charger with which you will return 40% of the charge in just 10 minutes.

In Xiaomi Mix 4, the company has implemented a function to protect the battery at night. As the device charges quickly, prolonged use of the mains may have a negative effect on the battery. The problem is easily solved - when the phone "detects" that you are asleep, it recharges only up to 80%. Shortly before you wake up, the artificial intelligence algorithms fill the charge to 100%. For the system to work, it needs to learn your habits within 2 weeks.

Another interesting technology is Xiaomi Always On UWB - with its help you can connect to compatible devices in the smart home.


Xiaomi Mix 4 is an attractive model that will appeal to users of Android phones. It offers a superb screen, new technology, good battery life and a front camera hidden under the display.

Comparisons Comments Share on Share on Error report

Check out these similar smartphones too:

Xiaomi Mix 4 - comments and opinions

Write your opinion or comment

There are no comments yet. Be the first to comment.

Frequently Asked Questions

The base approximate price of the Xiaomi Mix 4 was around 660 EUR after it was officially announced. At this point, the price may be lower.
The official release date is 2021, August 10.
The weight of the Xiaomi Mix 4 is 225 g.
The screen size of the Xiaomi Mix 4 is 6.67" inches.
The size of the Xiaomi Mix 4 is 162.6 x 75.4 x 8 mm (HxWxD).
No, it is not waterproof.
Yes, it supports fast charging.
Yes, it supports wireless charging.
Yes, it supports the services of Google Play store, gmail, youtube, etc.
There is Triple main camera and Single selfi camera.
To turn on the phone, press and hold the power key until the logo appears on the screen, then release the key. If the phone does not turn on after a few seconds, connect the charger and try again in a minute.
To turn off the phone, press and hold the power button until the power icon appears, then tap the power icon.
To restart the phone, press and hold the volume down key and the power key at the same time until the logo appears on the screen, then release them. This may take up to 30 seconds.
To take a screenshot, press and release the volume down button and the power button at the same time. A thumbnail of the screenshot will appear immediately after that.