Theater Mode
A useful feature that not many people know about is called Theater Mode. As you can guess by its name, this feature is perfect to use when you’re at the theater or watching a movie.
This mode turns your Apple Watch screen completely off so it won’t light up unless you tap it. This not only disables the always-on display (for those models that have one), but also prevents the screen from coming on when you raise your wrist, so it won’t distract people who are sitting in a darkened room with you.
While in Theater Mode, you can still tap on your screen to wake it up normally, but you can also use the Digital Crown to ramp it up from the lowest brightness levels so you can check the time or your notifications without blinding yourself.
Other features like Walkie-Talkie status also become unavailable, and your Apple Watch automatically turns on silent mode. Needless to say, this is a pretty useful feature that you should already be using.