1.Product Model:Z03 Smart Watch2.Master Chip:nRF52832 3.Sensor :BST-BMA253 4.ECG Ship:TI 129X 5.PPG chip:HRS3300DS 6.Virbation:Loundspeaker Mute/Vibration 7.Waterpfoof Level:IP68 8.Compatible System:Android 4.4 and above,iOS 8.2 and above 9.Screen:1.22 inch IPS;240*204 10.BLuetooth:4.0BLE(Low power) 11.Charging Type:Clasp type 12.Charging Time:About 2 hours 13.Working Hours:3-5days 14.Standby Hours:about 7 days