Samsung Gear S3 SM-R760 - Manual (Page 28)

Basics
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Opening apps
On the Apps screen, tap an app icon to open the app.
To open an app from the list of recently used apps, tap
(Recent apps) on the Apps screen
and select the recent app window.
Closing apps
1
On the Apps screen, tap (Recent apps).
2
Rotate the bezel to highlight the app you want to close.
3
Tap .
To close all running apps, tap CLOSE ALL.
Returning to the previous screen
Press the Back key. You can also swipe down from the top edge of the screen.