Barton smart watch heart rate sleep waterproof

Screen: 1.08TFT true color screen
Host size: φ35.8*10
Weight: 50g
Strap length: 220mm
Bluetooth: BLE4.0
Waterproof level: 10 meters.
Resolution: 240*240
Operation mode: single touch
Use time: 4 days or more
Charging method: magnetic charging cable
Standby time: 50 days or more
Charging time: about 2 hours of charging
Battery material: polymer lithium ion battery
Host material and process: alloy + electroplating + AF + PC
Acceleration sensor: 3-axis acceleration sensor