How to locate Control Center and enable Theater Mode on my Apple Watch

You access the Control Centre by tapping the side button (the flat oval button next to the Digital Crown).

Please refer to Use Control Center on Apple Watch.

Those options have apparently been hidden in your Control Center. They can be restored as stated in the previous link provided, in the section titled "Remove Control Center buttons."

To restore a button you’ve removed, open Control Center, tap Edit, then tap in the corner of the button you want to restore. Tap Done when you’re finished.

pmilleson wrote:

Yes thank you. I was tapping the round button instead of the flat button and now I’ve found everything. Thank you for your help.

What you’re calling the “round button” — that spinny knob thingie — is what Apple calls the “digital crown”.

Some additional things that may be helpful:

Getting the press and release timing just right can be an issue. You can make it more reliable by changing:

Apple Watch -> Settings -> Accessibility -> Side Button Click Speed

After changing this I never accidentally get the Emergency Services display.

“Side Button Click Speed” can adjust the press and release timing, so you get the Control Center display every time. Adjusting The “Side Button Click Speed” is also useful for Apple Pay’s double press and release. There is “Default” (sub second press and release timing needed), “Slow” (up to a second between press and release), and “Slowest” (up to 2 seconds between press and release). I like the “Slow” setting. And as I said, I do not accidentally get the wrong display.

NOTE: Slow and Slowest settings do not mean you have to wait a full second or 2 seconds between press and release. It just means you do not need to be super fast.

Change the watch face on your Apple Watch - Apple Support

watchOS 10.2 re-enables left/right watch face swiping

• Open the Settings app on your Apple Watch.

• Scroll down and choose “Clock”.

• Toggle on the “Swipe to Switch Face” setting.

Closing open Apple Watch apps

Double-press on the Digital Crown -> Quickly scroll to the app you wish to close, and swipe left on the app, then tap the big Red X.

Being quick to scroll the apps and swipe left can be a pain, so disable the following:

Apple Watch -> Settings -> Accessibility -> Auto-Select Focused App -> Off

You are welcome.

pmilleson wrote:

Yes thank you. I was tapping the round button instead of the flat button and now I’ve found everything. Thank you for your help.

Glad it helped!