XIAOMI Smart Band 9 M2345B1 Standard Version Sport Bracelet Health Monitor 1.62-inch AMOLED Screen TPU Strap Smart Wristband - Silver ???HD AMOLED Display??1.62-inch AMOLED screen with 1200 nits peak brightness,ensuring clear visibility even in sunlight. Auto-brightness adjustment for a comfortable viewing experience ???Stylish Metal Design??Features an aluminum alloy middle frame paired with a fashionable TPU wristband for an elegant look ???Customizable Watch Faces??Over 200 watch faces with various styles,plus deep customization options,including personal photo uploads ???Sleep Health Management??Accurately monitors sleep patterns,analyzes data,and provides expert-backed sleep improvement suggestions ???Advanced Health Monitoring??Supports all-day heart rate,blood oxygen saturation,and stress level monitoring with high-precision sensors ???150+ Sports Modes??Tracks various activities,from outdoor cycling to indoor workouts,helping you stay motivated ?Specifications: ?Version: Standard Version ?Main body size: 46.53*21.63*10.95mm ?Screen size and type: 1.62-inch AMOLED screen ?Screen resolution: 192*490,supports full-screen touch operation ?Screen brightness: up to 1200nits,supports automatic brightness adjustment ?Cover material: 2.5D tempered glass cover ?Shell material: aluminum alloy middle frame + fiber high-strength polymer ?Sensor: accelerometer,gyroscope sensor,optical heart rate and blood oxygen sensor,ambient light sensor ?Waterproof level: 5ATM ?Wireless connection: Bluetooth 5.4 ?Vibration motor: linear motor ?Battery capacity: 233mAh ?Battery type: lithium-ion polymer battery ?Charging time: about 60min ?Adjustable wristband length: 135-210mm ?Wristband material: TPU ?System language: Simplified Chinese,Traditional Chinese,English ?Supported system: Android 8.0 or iOS 12.0 and above ?Supported APP: Mi Fit Package included: ?1 x Smart Bracelet ?1 x Charging Cable ?1 x Chinese User Manual