Contacts: Connect to the mobile phone to synchronize contacts on the mobile phone and set emergency contacts; phone Dial-up: connect to the mobile phone to dial out, and you can call on the watch side Call record: Connect the mobile phone to synchronize the call record of the mobile phone; Record the exercise data of the day, including: calories, activity time, number of activities, steps and distance. Exercise record Bind to WeChat to receive payment via WeChat QR code WeChat Receive payment Heart rate Put the watch close to your wrist, and the best place to wear it is the wrist bone above your arm. The real-time heart rate can be measured. The normal value of the average person is 60-90 beats/min. The watch records the last 7 measurement records, and records the highest and lowest values. blood pressure Put the watch close to your wrist, and the best place to wear it is on the upper arm of the wrist bone. Blood pressure can be measured. The watch records the last 7 measurement records. Bicod oxygen Put the watch close to your wrist, and the best wearing position is on the wrist bone and above the arm. The blood oxygen value can be measured. The watch records the last 7 measurement records and records the highest and lowest values. Indoor activities It includes 6 regular sports including indoor running, indoor cycling, sit-ups, push-ups, and free training. NFC One touch the access card simulation, lift the wrist to open the door, one touch to call out the health code, one touch to call the phone, one touch to reach the application.