Screen：1.43 inch AMOLED Color Screen, 466 x 466 pixels, 326 PPI
Battery capacity ：451 mAh
Feature：Heart rate monitoring，Blood Oxygen
Feature：Sleep tracking
Feature ：Workout monitoring
Feature ：Notifications
Feature ：Support GPS
Feature ：5ATM Waterproof
Feature ：100 workout modes
Feature ：14-day long battery life
Feature ：Bluetooth calls
Feature ：Professional running guidance
Feature ：Music
Maximum Bluetooth transmission distance: 150 meters (without any obstructions)
Weight ： Approx. 44 g (without the strap)
Charging time：Less than two hoursat room temperature
