Use a Dark Watch Face
It takes less energy to power black pixels, so changing your watch face to a darker option can give your battery a small boost.
- Open the Watch app on your iPhone.
- Tap on the Face Gallery tab and choose a dark watch face.
- Tap the ADD button to add the new watch face to your collection. It will sync to your Apple Watch automatically.
- Open the My Watch tab at the bottom of the screen to make edits to the new face.