Display: 1.62", AMOLED Touch Display
Resolution: 192 x 490, 326 PPI
Screen Brightness: Up to 600 nit
Case material: 2.5D reinforced glass case
Adaptive Display Brightness: Support ambient light sensors that allow the display brightness to automatically adjust for your eyes
High Refresh Rate: New chipset that supports 60Hz high refresh rate, smooth usage
Ambient light sensor: Yes
New Pebble Mode: Professional running experience
Workout Mode: 150+ workout modes
10 on-wrist running courses, could vibrate and light the screen to remind you to meet your heart rate and pace goals
Watch faces: 200+ different colorful watch faces, also include fun games watch faces
Water resistant level: 5 ATM
Health Monitoring: All-day SpO2 level tracking, continuous sleep monitoring, 24-hour heart rate monitoring, and sleep breathing monitoring.

General Features:

Battery Life: Up to 16-days battery life for normal daily use
Standby Time: 16 days for normal use and 6 days for AOD use
Charging Time: Support 2C quick charge, fully charged within 1hour
Sensor: 3-axis accelerometer + 3-axis gyroscope sensors PPG sensor
Wireless Connectivity: BT5.1 BLE
System Requirements: Android 6.0，iOS12 or above
Wrist strap material: TPU
Supported App: Mi Fitness
Weight: 27g with strap
Dimensions: 48*22.5*11mm