, you can use either the official app or specialized third-party applications available on the Google Play Store . Official Method (Zepp App)
Tap the desired watch face and select to download and apply it to your watch. Third-Party Apps Download GTR 2 - WatchFaces for Amazfit GTR 2/2...
For a wider variety of custom designs, several dedicated apps are available: Amazfit GTR 2/e Watchfaces - Apps on Google Play , you can use either the official app
Browse the categories to find a design you like. Some faces are free, while others may require a purchase. Download GTR 2 - WatchFaces for Amazfit GTR 2/2...
This is the most reliable way to browse and sync new designs directly from the official store.