The following reasons result in your watch having no movement track or track loss:
1. During exercise, if the band is turned off or restarted, no exercise data will be generated;
2. The device does not have GPS hardware, and depends on the Mi Fitness APP positioning to obtain trajectory information. Please ensure that the APP is connected to the watch by Bluetooth during exercise, and keep the Mi Fitness APP running in the background or foreground;
3. Outdoor sports rely on mobile GPS to record trajectories and distance. Therefore, when engaging in outdoor activities, it is necessary to turn on GPS and APP location permissions on the phone.