watchOS 11
Use the flashlight on Apple Watch
You can use Apple Watch to shine a light on a door lock at night, alert others when you’re out for an evening run, or illuminate nearby objects.
Turn on the flashlight
Press the side button to open Control Center on Apple Watch.
Tap
.
Do any of the following:
Change the light: Swipe left or right to choose a mode—steady white light, flashing white light, or steady red light.
Adjust the brightness: Turn the Digital Crown.
Turn off the flashlight
Do any of the following:
Press the Digital Crown.
Swipe down from the top of the watch face.