Specifications:

Display Size:
2” Square LCD

Display Resolution:
320 x 385｜250PPI

Material:
Plastic frame 
(with metal spray coating)
TPU Strap

Water/Dust Resistance:
5ATM

Battery:
470mAh
Up to 18 days (typical usage mode)

Connection:
Bluetooth 5.3

App:
Xiaomi Fitness

Weight:
30.6g  (without strap)
49.1 x 40.4 x 11.4mm

Function:
Xiaomi HyperOS
Bluetooth phonecall
Heart rate sensor (with blood oxygen sensor)
Accelerometer
Strap: 135-205mm
140+ workout modes
200+ watch faces

Compatibility:
Android 8 / iOS 12 and above