How to delete the custom watch face
Delete on the watch:
1. When the watch-face interface is pressed and held, the watch-face selection interface will appear, displaying the installed watch faces.
2. Choose one dial with the Customize button.
3. Tap Customize and swipe UP till it shows " Choose uploaded image"
4. Tap the " choose uploaded image", you will see all the custom images you make
5. Long press the image you want to delete till it appears "X"
6. Tap "X" and the image will be deleted from your watch
Delete through computer:
1. Connect your watch with your computer.
2. Find \.watchface\customBg in the internal storage of the device.
3. Delete any images you want.