About this itemBT v5.3. Chip: JL AC7006F4Battery capacity: 90mAh, charging time is about 1.5 hours.Use time: 8 hours. Standby time: 120 hours.Sizes: 1..
FeatureDisplay1.44 inch TFT ScreenSize46 x 46 x 11.9MMWeight60gBattery380 mAhBluetoothBT 5.0 + 3.0WaterproofIP68ChargerWireless ChargingHeart RateAuto..