M21 Smart Watch
Bluetooth version:BLE 5.0
Chipset:YC1133
Screen display:1.28 inch TFT 240*240 pixel
Battery capacity: 180mAh
Charging interface:Magnet adsorption type
Standby time:About 15 days
Working time: About 3~6 Days
Strap material: Silica Gel
Waterproof: IPX7