Model Number：FK88
Screen Resolution：320x240
Operation System：ANDROID, IOS
Band Material：Silicon+Sport loop
Case Material：Aluminiumalloy
Screen Size：1.78 Inch
Compatible：OS 8.0 + / Android 4.4 +
Battery：220mAh
platform：MTK2502C 128M+128M
BT Function and Version：3.0+4.0 support Bt calls

1.78 Full screen touch, HD screen, encoder knob, Bluetooth call, various motion modes,

2.5D Globoidal Capacitive Fully-Fitted Touch Screen

Heart rate monitoring, all-weather monitoring of your heartbeat

Objectively, scientifically and quantitatively record and analyze your sleep status