Make sure that the watch is connected to the mobile phone, otherwise there will be a lack of accurate satellite positioning and inaccurate data. Then turn on all the health activities in GM.

Apple's electronic watch has a special function, that is, fitness function. It can calculate the calories consumed by our daily activities through a series of sensors built into the mobile phone, and can also provide us with a lot of useful information during running, such as average pace, heart rate, time and distance.