AGPS refers to a GPS satellite orbit information data that can help the watch to perform GPS positioning faster。

While keeping your watch connected to your phone's Bluetooth, the watch regularly synchronizes and updates AGPS data with the Amazfit App on a daily basis. If watch hasn’t sync with your Amazfit App for 7 days, the AGPS data will expire. The positioning speed may be affected when AGPS expires, so the watch will remind you to update when you begin an activity.