Battery type: lithium batteryBattery model: 352422Battery voltage: 3.7VBattery capacity: 180mAhBattery life: 5-7 days for normal connection and 10-15 days for standby. (Connect to use depends on personal usage)Charging method: magneticCharging time: about 2 hoursWristband color: black glue, powder glue, silver glue, black steel, silver steel, powder steelProduct process: zinc alloy +IMLScreen size: 1.2 inch full circleScreen resolution: 240*240Screen type: IPS full viewing angle color screenScreen material: nano tempered glassTotal length of wrist strap: 245mmWristband material: silicone, steel beltStep counter, sleep, heart rate, blood pressure, blood oxygen, ECGMulti-sports mode, music control,About,, alarm clock, dial selection, countdown, stopwatch, recoverySedentary reminder, information viewing, etc. (use after connecting to Bluetooth)package:1 xDT88 PRO1 x user manual1 x packing box1 x magnetic charging cable