Porodo Belle Smart Watch - Material Zinc Alloy ABS Screen Resolution AMOLED 390 x 390 Screen Size 1.19 Inch Bluetooth V5.4 Battery Capacity 180mAh Working Time 1 Day Always On Mode 3 Days Bluetooth Connected System Compatibility Android 8.0 And Above iOS 12 And Above G Sensor SC7A20H HR Sensor PAH8009 Pixart