As of September 12, 2025, the option to change the date format is only supported on GTX3、GTR3、GTR4、GTS8、GTS9、GTS10 watch models.
Make sure your phone is connected to your watch.
Open the Runmefit App and go to Device > Device Settings > Date Format.
Select either Day/Month or Month/Day.
Return to the app’s home page and pull down to refresh, so the date format setting syncs to your device.
After completing these steps, the date format on your watch face will be displayed according to your selection.