• Piano Black
    Ocean Blue
    Lavender Violet

Processor

Qualcomm® Snapdragon™ 855 flagship processor

CPU name: Snapdragon™ 855, Qualcomm's flagship processor of the year
CPU architecture: All new Kyro 485 architecture with 7nm process
CPU frequency: Octa-core processor, up to 2.84 GHz
Qualcomm's first trifecta design: 1 x 2.84GHz super large core + 3 x 2.42GHz large core + 4 x 1.80GHz small core
Improved CPU performance: 45% improvement
Improved efficacy: 40%
GPU name: Adreno™ 640
Improved GPU performance: 20%
Improved efficacy: 25%+
The first smartphone GPU to support Vulkan 1.1 graphical driver and movie-level post processing
Increased bandwidth compression, shadow processing and true HDR rendering and display
AIE edition performance: 7th generation AIE processor with 3 times more powerful AI

Operating system

MIUI 10

Supports MI Turbo

Our first phone to support defragmentation I/O optimization | Supports app launch speed optimization
Reduced slowness by 35% after 18 months of simulated use

Supports GAME Turbo

Support custom game parameters | Supports custom game display improvement | 4D Touch for shooter games
Supports CPU/GPU occupation and FPS display | Game tools support one-touch switch network card
Supports improved game performance and optimized touch response | Supports custom border restrictions | Supports auto-brightness disabling, three-finger screenshot and Eye-protection mode

Dynamic wallpaper and display

All new multi-colour Always-On Display* | Supports dynamic wallpaper auto-change according to local time
Now supporting Dark mode

Memory

6GB+128GB
Largest available for Mi 9

RAM: 6GB LPDDR4x 2133MHz dual-channel
ROM: 64GB/128GB UFS2.1 flash storage

*Actual free memory and capacity may vary due to various factors. As the operating system occupies a portion of the RAM, actual available memory is less than stated. As the phone comes with pre-installed applications, the actual storage size is smaller than stated.

Display

6.39" Samsung AMOLED Full Screen Display*

Resolution: 2340 x 1080 FHD+ 403 PPI
Brightness: 600nit (HBM) / 430nit (typ)
High contrast: 60000:1 (min) | Colour Gamut: NTSC 103.8% (typ)
Standard mode | Sunshine mode 2.0 | Night mode | Colour temperature adjustment | 256 ranks adjustable Reading mode
Corning® Gorilla® Glass 6
Anti-oil and anti-fingerprint protective coating
Supports HDR display

*Xiaomi phones feature a curved design with gracefully rounded corners. When measuring the rectangle formed from the farthest ends of each corner, the screen has a diagonal length of 6.39 inches (actual display area may be slightly smaller). The term "Full Screen Display" indicates that the phone has a high screen to body ratio in comparison to traditional Xiaomi phones. The screen-to-body ratio of 90.7% was obtained by Xiaomi laboratory data. Methods of measurement may vary within the industry and results may vary.

Rear Camera

Sony 48MP ultra wide-angle AI triple camera
Top level DxO photo score

48MP primary camera with Sony IMX586 0.8μm ƒ/1.75 aperture
Supports HD video
12MP telephoto camera with 1.0μm ƒ/2.2 aperture
Supports macro photography
16MP Ultra wide-angle lens with 1.0μm ƒ/2.2 aperture
Supports wide-angle photography
Zoom: Triple camera zoom with 2x optical zoom and 10x digital zoom
Focus: laser focus | Phase detection focus | Contrast detection focus
Photo resolution: up to 8000x6000 pixels*
Video resolution: up to 3840x2160 pixels*

Rear camera photography features

48MP HD | Smart ultra-wide angle mode | Ultra nightscape mode | Portrait mode background blurring | Panorama mode | Pro mode | Photo timer | Level display | Burst mode | Face recognition | HDR | Single-tone dual flash | Dynamic photos | AI Beautify | Ultra wide-angle edge distortion correction | Group photo face correction | Custom watermark | Full body portrait mode | Portrait mode background blur adjustment | Rear camera AI scene detection (30 recognizable tags) | AI lens flare | AI Studio lighting | AI high resolution photos | Moon mode*

Rear camera video features

960 fps slow motion video | 960 fps Smart audio pairing | Short videos (speed adjustment, beauty filters and popular music) | Rear camera video Beautify | Video stabilizing | Quick motion | Motion tracking*

4K recording 60fps / 30fps
1080p recording 60fps / 30fps
720p recording 30fps
1080p slow motion recording 120fps / 240fps / 960fps
720p slow motion recording 120fps / 240fps / 960fps

*Third best DxO photo score in the world" refers to DxOMark smartphone photo scores. For more information, see: https://www.dxomark.com; Phones sold in initial batches may not include motion tracking, or Moonlight mode, which will be added later via OTA update. Updates may have varying rates of progress; Please refer to the official MIUI website (en.miui.com) for future releases.

Front camera

20MP Front Camera
20MP front camera with 0.9μm ƒ/2.0 aperture

Front camera photography features

Front camera HDR | Front camera display brightness correction | Selfie timer | Face recognition | Magic mirror | Age recognition
Eye light | AI Beautify | AI feature adjustment | AI makeup | AI portrait mode | AI scene detection | AI studio lighting | AI lens flare

Front camera video features

Short videos (speed adjustment, beauty filters and popular music) | Front camera video Beautify

1080p recording 30fps
720p recording 30fps

Fingerprint unlock

Improved In-screen Fingerprint Sensor


Charging and battery

3300mAh (typ) / 3200mAh (min)

Built-in rechargeable battery
USB Type-C reversible connector port
TÜV Rhineland Certified Safe Fast-Charge System
The world's first 20W wireless charging
WPC wireless charging standard Qi mid-range power EPP certified
Supports 27W wired fast charging
Supports QC4.0 quick charging protocol
Includes 18W wire charger

*The phone supports QC4+ charging protocols. A 18W QC3.0 charger is included with the phone.

Network & Connectivity

Supports use of dual SIM cards from different carriers;
both cards can access 4G connectivity simultaneously①
Dual Nano-SIM slots; either card can be set as the primary card
Supports 4G+/4G/3G/2G
Supports dual SIM VoLTE HD calling②

Note ①: Dual 4G SIM requires the support of local telecom operator services, and may not be available in all regions.
Note ②: Only certain regions and telecom operators support VoLTE.

Supported network bands

4G:LTE FDD: B1/2/3/4/5/7/8/12/20/28
LTE TDD:B38/B39/B40
3G:WCDMA:B1/B2/B4/B5/B8
TDSCDMA:B34/B39
CDMA EVDO BC0
2G:GSM:B2/B3/B5/B8
CDMA 1X:BC0
Supports 4x4 MIMO | HPUE | HO RxD

Wireless network

Supports protocols: 802.11a/b/g/n/ac
Supports 2.4G Wi-Fi / 5G Wi-Fi / Wi-Fi Direct / Wi-Fi Display, supports WPA3
Supports Wi-Fi 2x2 MIMO technology, supports MU-MIMO
Supports Bluetooth 5.0, Qualcomm TrueWireless™ Stereo Plus
Support AAC/LDAC/aptX/aptX-HD audio frequencies

NFC

Supports Android Pay

Dimensions

Height: 157.5mm
Width: 74.67mm
Thickness: 7.61mm
Weight:173g

Navigation and positioning

Dual-frequency GPS

Simultaneously receives L1 /L5 frequency GPS signals
Positioning systems:
GPS:L1+L5 | Galileo:E1+E5a | GLONASS:L1 | Beidou:B1
A-GPS assisted positioning | electronic compass | Wireless network | Data network

Speaker

Ultralinear speaker
Loud audio output amplified by Smart PA
Equivalent to 0.9cc large speaker box
Added bass materials for a deep bass sound

Audio playback

MP4 | M4V | MKV | XVID | WAV | AAC | MP3 | AMR | FLAC | APE

Video playback

Supports H.264,MPEG4, VC-1,VP8, VP9
Supports HDR display when playing HDR10 video content

Sensors

Ultrasonic proximity sensor | In-screen ambient light sensor | Accelerometer | Gyroscope | Electronic compass
Linear motor | IR remote control | Camera laser focusing sensor

Package contents

Mi 9
Simple protective cover
Power adapter
USB Type-C cable
Type-C to audio adaptive cable
SIM eject tool
User guide
Warranty card

Notes:
*Statements made on this page in regard to the Qualcomm® Snapdragon™ 855 processor, including 20% faster gaming, 45% faster operations, and 300% more powerful AI, are obtained from Qualcomm's official website. Comparisons to the previous generation processor refer to the Qualcomm® Snapdragon™ 845.
*Actual free memory and capacity may vary due to various factors. As the operating system occupies a portion of the RAM, actual available memory is less than stated. As the phone comes with pre-installed applications, the actual storage size is smaller than stated.
All data on this page regarding charging and battery life are obtained from Xiaomi laboratories. Actual results may vary according to differences in software version, environment and phone edition and may not reflect the actual product.
*In regards to the Full Screen Display, Xiaomi phones feature a curved design with gracefully rounded corners. When measuring the rectangle formed from the farthest ends of each corner, the screen has a diagonal length of 6.39 inches (actual display area may be slightly smaller). The term "Full Screen Display" indicates that the phone has a high screen to body ratio in comparison to traditional Xiaomi phones. The screen-to-body ratio of 90.7% was obtained by Xiaomi laboratory data. Methods of measurement may vary within the industry and results may vary; Phones sold in initial batches may not include multi-colour Always-On Display, which will be added later via OTA update. Updates may have varying rates of progress; Please refer to the official MIUI website (en.miui.com) for future releases.
*In regards to the camera, "Top level DxO photo score" refers to DxOMark smartphone photo scores. For more information, see: https://www.dxomark.com; Phones sold in initial batches may not include motion tracking, or Moonlight mode, which will be added later via OTA update. Updates may have varying rates of progress; Please refer to the official MIUI website (en.miui.com) for future releases.
*In regards to fingerprint recognition, phones sold in initial batches may not include low light unlocking optimization, which will be added later via OTA update. Updates may have varying rates of progress; Please refer to the official MIUI website (en.miui.com) for future releases.
*Dual 4G SIM requires the support of local telecom operator services, and may not be available in all regions. Only certain regions and telecom operators support VoLTE.
*All comparisons made on this page to typical phones refer to typical Xiaomi phones; Unless otherwise indicated on the Mi 8 product page, all data come from by Xiaomi Laboratories, product design specifications and supplier data. The testing data may vary slightly between different test versions and testing environments. All figures shown on the product page are for reference only and may not reflect the actual product.
*This is just an illustration and the design of the real product may differ.
*A 18W QC3.0 charger is included with the phone.