1. Press the Functional Crown to enter the feature list, Go to Settings>>Display & Brightness>>Screen on, choose the brightness duration, and then turn on the switch. The watch screen will stay on according to the set time.
2. On the main watch face, swipe down to display the quick menu, Settings>>Display & Brightness>>Screen on, choose the brightness duration, and then turn on the switch. The watch screen will stay on according to the set time.