Samsung Gear S2 classic User Manual page 55

Basics
Opening apps
On the Apps screen, tap an app icon to open the app.
X To open an app from the list of recently used apps, tap
Closing apps
1 On the Apps screen, tap Recent apps.
2 Rotate the bezel to highlight the app you want to close, and tap the X.
3 Tap Close all to close all running apps.
Recent apps on the Apps screen and select the recent app window.
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