WKSupportsAlwaysOnDisplay

A Boolean value that determines whether the system displays the app in the Always On state.

Discussion

If true, the system displays the app in the Always On state when the app is the frontmost app or running an active background session. Apps compiled for watchOS 8 and later have Always On enabled by default; however, users can disable Always On for the entire device or on a per-app basis by selecting Settings > Display & Brightness > Always On.

For more information, see Designing Your App for the Always On State.