From the watch face, press , and select Settings > Display & Brightness.

Brightness

Sets the brightness level of the screen.

Always On Display

Sets the watch face data to remain visible and turn down the brightness and background. This option impacts the battery and display life (About the AMOLED Display).

Text Size

Adjusts the size of the text on the screen.

Red Shift

Turns the screen to shades of red, green, or orange so that you can use the watch in low light conditions and help preserve your night vision or reduce eye strain.

Wake On Alert

Turns on the screen when you receive a notification or alert.

Wake On Gesture

Turns on the screen when you raise and turn your arm to look at your wrist.

Timeout

Sets the length of time before the screen turns off.

Touch Lock

Locks the screen to prevent inadvertent screen touches. Turning on this option requires you to swipe down from the top of the screen to unlock the touchscreen.