Google Pixel Watch 3
Adjusting screen brightness
You can adjust the screen brightness to your surroundings.
Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press Display.
Press Brightness.
Press the indicator next to "Adaptive brightness" to turn the function on or off.
Press the plus icon or the minus icon to select the required brightness.
Press the crown to return to the home screen.