Turning off Apple Watch cell phone

Hi Applewatchturnphoneoff,

Welcome to Apple Support Communities. The Focus feature is most closely aligned with the needs you've mentioned. You can set up Focus to allow some apps and even create a set schedule. The following guidance can be found in Use Focus on Apple Watch - Apple Support.

"Turn a Focus on or off

1. Touch and hold the bottom of the screen, then swipe up to open Control Center.
2. Touch and hold the current Focus button, then tap a Focus.
3. If no Focus is on, Control Center shows the Do Not Disturb button.
4. Choose a Focus option—On, On for 1 hour, On until this evening/On until tomorrow morning, or On until I leave.

Create a Focus schedule

On Apple Watch you can schedule when each Focus occurs—you can even choose to have a Focus start at different times of the day. For example, you could schedule the Work Focus to start at 9 AM and end at noon, Monday through Friday. From noon to 1 PM you may have no Focus or have a Personal Focus take over. Then, start Work Focus again from 1 PM until 5 PM, Monday through Thursday.

1. Open the Settings app on your Apple Watch.
2. Tap Focus, tap a Focus—Work, for example—then tap “Add new.”
3. Tap the From and To fields and enter the times you want the Focus to begin and end.
4. Scroll up, then choose days when the Focus will be active.
5. Tap < in the top-left corner to save the Focus.
6. Repeat this process to add other events to the Focus."

If that's not quite what you're looking for, you can also send feedback to request future additions from Product Feedback - Apple.

Have a great day!