General
Product TypeSmartphone
Form FactorTouch
Integrated ComponentsFront-facing camera, voice recorder, navigation, digital player, triple rear-facing camera
Width2.9 in
Depth0.3 in
Height6.2 in
Weight6.1 oz
Body ColorPiano black
Body MaterialCurved glass
SAR Value1.301 W/kg (body) / 1.389 W/kg (head)
Cellular
TechnologyCDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA
Mobile Broadband Generation4G
Service ProviderNot specified
User InterfaceMIUI 10
Intelligent AssistantGoogle Assistant
NavigationGPS, A-GPS, GLONASS, BeiDou, Galileo
SIM Card TypeNano SIM
SIM Card Slot QtyDual-SIM
Payment TechnologyAndroid Pay
Input DeviceMulti-touch
Messaging & Internet
Messaging ServicesSMS, MMS
Supported Social Networks and BlogsYes
Communications
Data TransmissionGPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE
3G UMTS BandBand 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency2100, 1900, 1700, 850, 900
4G LTE BandBand 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 20, Band 28, Band 38, Band 39, Band 40
4G LTE FrequencyFDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300
Wireless InterfaceNFC, IEEE 802.11a/b/g/n/ac, Bluetooth 5.0
WLAN SecurityWPA3
Phone Features
Phone FunctionsSpeakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
SensorsAccelerometer, ambient light sensor, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor
Security DevicesFingerprint reader (under display)
Additional FeaturesInfrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo
Media Player
Supported Digital Audio StandardsAAC, apt-X, LDAC, apt-X HD
Sound EnhancementsQualcomm TrueWireless Stereo Plus
Processor
TypeQualcomm Snapdragon 855
Clock Speed2.84 GHz
Processor Core Qty8-core
64-bit ArchitectureYes
Graphics System
Graphics AcceleratorQualcomm ADRENO 640
Memory
RAM6 GB - LPDDR4X SDRAM
Internal Memory Capacity128 GB
Front Camera
Sensor Resolution20 Megapixel
Lens ApertureF/2.0
Pixel Size0.9 µm
Special EffectsHDR, Magic mirror
Camera ModesAI portrait mode, AI Beautify, AI makeup
Video Resolutions1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
FeaturesSelf-timer, age recognition, Video Beautify, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, AI lens flare
Rear Camera
Face DetectionFace recognition
Sensor Resolution48 Megapixel
Sensor NameSony Exmor RS IMX586 sensor
Still Image Resolutions8000 x 6000
Lens ApertureF/1.75
Pixel Size0.8 µm
Focus AdjustmentAutomatic
Laser Auto FocusYes
Optical Zoom2
Digital Zoom10
Special EffectsHDR
Camera ModesBurst mode, Panorama, Pro mode, AI Beautify, Smart ultra-wide angle mode, Ultra nightscape mode, Photo timer, Level display, Custom watermark, Full body portrait mode, Moon mode
Light SourceDual flash
Video Resolutions1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1920 x 1080 (1080p) at 960 fps, Slo-mo video 1280 x 720 (720p) at 960 fps
FeaturesSapphire crystal lens cover, Phase Detect Auto-Focus (PDAF), Dynamic photos, video stabilization, Contrast Auto-Focus, AI scene detection, AI studio lighting, Video Beautify, AI Triple camera, 960 fps Smart audio pairing, AI lens flare, AI high resolution photos, Portrait mode background blur adjustment, Ultra wide-angle edge distortion correction, Group photo face correction, Portrait mode background blurring, Motion tracking, Quick motion
Lens TypeUltra wide-angle lens
Second Rear Camera
Sensor Resolution12 Megapixel
Lens TypeTelephoto lens
Lens ApertureF/2.2
FeaturesMacro photography
Pixel Size1 µm
Third Rear Camera
Sensor Resolution16 Megapixel
Display
TypeOLED display
TechnologyAMOLED
Diagonal Size6.39"
Display Resolution2340 x 1080 pixels
Display FormatFull HD+
Pixel Density403 ppi
Max Brightness600 cd/m²
HDRYes
Contrast Ratio60000:1
ProtectionFingerprint-resistant coating, Corning Gorilla Glass 6 (scratch resistant glass), oil protective coating
FeaturesAlways-on display, Reading mode, Color temperature adjustment, HDR10, night mode, Wide Color Gamut (WCG), Sunshine mode 2.0
Connections
Connector TypeUSB Type-C - 24 pin USB-C
Battery
Capacity3300 mAh
Fast Charging TechnologyQualcomm Quick Charge 4.0+
Wireless Charging StandardsWPC, Qi
Miscellaneous
Compliant StandardsTUV Rheinland Certied Safe Fast-Charge System
Included AccessoriesProtective cover, SIM card removal tool, USB-C cable, USB-C audio adapter, 18W QC3.0 charger
Universal Product Identifiers
BrandXiaomi
Part Numbers22594, Mi 9T, XiaoMi9128GBBlk-PRT, XiaoMi9SE128GBBlk-PRT, Xiaomi Mi9 128GBPB
GTIN06941059619420