How do I download and use offline maps on the T-Rex 3?

To use offline maps, connect your watch to Wi-Fi and select a download area in the Zepp app under Profile, Amazfit T-Rex 3, and Map. Once the download is confirmed on the watch, the map will display automatically on your real-time track page during GPS-enabled workouts. Ensure that the 'Show Base Map' switch is turned on in the watch's map settings to see the visual data.