Most of them are quick.
They should apply to all Apple Watch models and versions of watchOS.
Press or turn the Digital Crown.

To see if they’re active, open theWatchapp on your phone, and then go toDisplay & Brightness.
Make sureAlways OnandWake on Wrist Raiseare both active.
Check the bottom of the Apple Watch to ensure there is nothing stuck to the charging pad.
The Apple Watch uses induction to power up while sitting on the charging pad.
Anything attached to the bottom of the watch can cause a problem.
Verify that the charging station is plugged into a wall outlet.
Put your Apple Watch on its charger.
Put your watch on its charging puck and wait a few minutes to see if it turns back on.
Inspect the cable to ensure there are no cuts, worn-out spots, or other damage.
The watch’s display should show the power icon (a lightning bolt) when it is charging.
The watch should restart within 10 seconds, but keep both buttons down for at least 30 seconds.
The Apple Watch display can also be turned off via anaccessibility featurecalled Screen Curtain.
This feature is part of the VoiceOver assistance for the visually impaired.
When VoiceOver is turned on, the watch is operated by sound rather than sight.
Try reseating the watch on the charger and checking your cords for damage.
Tofix an Apple Watch not updating, check your connections and storage space.
If the update won’t begin, kickstart your Watch and its paired iPhone to force the update.
Problems with Bluetooth or Wi-Fi are typical culprits when an Apple Watch won’t pair to an iPhone.
Try rebooting the devices, checking your Wi-Fi connection, and clearing the iPhone’s online grid prefs.