watchOS 4 brings a flashlight feature to the Apple Watch that lights up the smartphone’s face for a (little) bit of extra light. to access the flashlight feature:
- With the Apple Watch on, raise your wrist up to illuminate the screen.
- Swipe up from the bottom to bring up the Control Center.
- Tap on the flashlight icon.
To close the flashlight mode swipe down to dismiss it or press the Digital Crown.
There are three flashlight modes available: pure white, flashing white, and red. To change between them with the flashlight feature, which automatically opens in pure white, swipe left for flashing black and white, and swipe again to access the red light. Swipe right again to cycle back through the modes.