Health monitoring: MAI Health Index, one click measurement, heart rate, exercise heart rate, blood oxygen sleep monitoring, HRV pressure, emotion monitoring, women's health, live monitoring. Exercise monitoring: step counting, calories, distance, 100 exercise modes. More features: Bluetooth calling, message notification, custom dial, breathing training, water drinking reminder, sedentary reminder, weather, alarm reminder, remote photography, music control, etc. Battery life: 300mAh, can be used for 5-10 days, standby for up to 45 days, magnetic charging