How to use Power saving mode
Power saving mode is the key to increasing the battery life of your Galaxy Watch. It reduces the screen brightness and limits applications that may drain your battery while running in the background.
To activate or deactivate Power Saving mode, use the following steps:
Step 1. Swipe up on the main screen and tap the Settings icon.
Step 2. Tap “Battery”.
Step 3. Select “Power saving” by tapping the toggle switch to turn power saving mode on or off.