Main functions: heart rate detection, blood pressure detection, blood oxygen detection, pedometer (hand ring to view the latest data record), stopwatch, mobile phone search, reach the standard reminder, drink water reminder, raise your hand to light the screen, sit for a long time, alarm clock reminder, shake to take a picture, Wechat sports access, sports goal setting, fitness information sharing, weather, smart alarm clock, raise the hand to light up the screen, light up the screen time, find the mobile phone, find the bracelet, reject the phone call, shake to take a picture, do not disturb mode (do not disturb time setting, turn off the vibration of the bracelet, turn off the message reminder)