Xiaomi Mi 9 8GB+128GB

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%+
AIE edition performance: 7th generation AIE processor with 3 times more powerful AI

8GB+128GB
Largest available for Mi 9
RAM: 8GB LPDDR4x 2133MHz dual-channel
ROM: 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.

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.

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 Utra 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*

*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.

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

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.

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

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

Audio playback

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

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

Video playback

Supports H.265/HEVC, H.264,MPEG4, VC-1,VP8, VP9
Supports HDR display when playing HDR10 video content