Key Features:

• Dimensions: 48.1mm x 39.2mm x 10.6mm (exclude the strap and protrusions)
• Display: 1.96" Square AMOLED display
• Resolution: 410 x 502｜332PPI
• Screen-to-body ratio: 75.80%
• Weight: 29.2g (without inbox strap)
• Operating System: Xiaomi HyperOS
• Frame material: Plastic (NCVM)
• Battery Capacity: 470mAh 
• Battery Life: Up to 18 days (typical usage), 12 days (heavy usage), 7 days (AOD mode)
• Compatibility: Android 8.0 & above, iOS 12.0 & above
• Wireless Connectivity: Bluetooth® 5.3
• Water Resistance: 5ATM (suitable for swimming)

Additional Features:

• Sensors: Heart rate sensor (with blood oxygen sensor) | Accelerometer | Gyroscope
• Satellite positioning systems: GPS | Galileo | Glonass | BeiDou | QZSS
• Dual-Mic Noise Reduction | Bluetooth Call supported 
• 200+ Watch Faces
• 150+ Workout Modes
• Built-in GNSS