sports Mi band 4 smart watch heart rate monitor bracelet M4 Smart Watch Fitness Tracker M4 Smartwatch

Specification:

Total Length: 235mm

Band Width: 22mm

Main Unit Size: 4.1cm * 1.2cm * 1.9cm(Length x Height x Width)
Bracelet material: ABS, main body cover PC, strap TPU
Battery capacity: 90mah
Battery type: lithium polymer battery
Display screen: 0.96 HD IPS color screen FTF process, single point touch button
Bluetooth: 4.0
System Requirements: Android 4.3 or IOS8.0 or higher mobile phones supporting Bluetooth 4.0

Color: Black Red Blue

Package Included:
1 * Smart bracelet
1* Manual