Main Display : 1.14 " TFT 135*240

Bluetooth:Bluetooth 4.0

Type of battery: li-ion battery 

Battery Capacity: 90mAh 

Standby time: about 5-7 days 

Normal use time : about 3-5 days 

Charging Time: About 1.5-2hours

Compatilbe:IOS 8.4 or above/ Android 4.4 or higher