Lightweight & Stylish
It can works with most of the smartphones
Compatibility: IOS 8.4 & above; Android 4.4 & above; Bluetooth 4.0.
Waterproof: IP67 Battery:170mAH
Screen: 1.3inch OLED screen
Charging: USB Port on Host
Item size: 16.7*0.37inch (band 0.79Inch width ,10inch length)
Weight: 44g