Why do I need to upgrade AGPS?

Assisted GPS (A-GPS) uses the GPS satellite-based orbital information to help accelerate GPS positioning for the watch. When a Bluetooth connection between the watch and the mobile phone is maintained, the watch synchronizes AGPS data from the app on a daily basis. Because GPS satellite position constantly changes, if the watch does not synchronize data from the app for seven consecutive days, the AGPS data expires. This may affect positioning speed. Connect the watch to the app to update the AGPS data, so that the watch can quickly locate the position of the satellite. This allows your watch to quickly locate your position before you start exercise.