Turn Down the Brightness
If you still want to use features like Wake on Wrist Raise, or you spent a lot of time checking your Apple Watch or using apps on it, you may want to consider taking the brightness down a few notches to save power.
- On your Apple Watch, open the Settings app.
- Scroll down and tap Display & Brightness.
- Tap on either end of the brightness slider to adjust it up or down.
You only get three levels of brightness settings, but unless you’re working in bright light, you probably don’t need to keep your Apple Watch at the highest one.