Why is my Apple Watch not lighting up?
The face of the watch is dark. The watch is charged. Siri responds. The Mike appears on the screen when the dial is held. Wouldn’t power off.
[Re-Titled by Moderator]
Apple Watch Series 6, watchOS 10
Try to force restart your watch by pressing simultaneously on the crown and the side button until the Apple logo appears. Ignore anything on the screen until the logo appears, then release the buttons.