Samsung Galaxy S8 User Manual page 26

Proximity sensor
•
-
Turns off the screen and disables touch
functionality when the device is in close
proximity to the human body.
-
Turns the screen back on and enables touch
functionality when the device is outside a
specific range to the human body.
Power key
•
-
Briefly press to turn the screen on or off.
-
Press and hold to select a power control option.
-
Press twice quickly to launch the camera.
Learn About Your Device
Volume keys
•
-
Adjust the volume for ringtones, calls,
notifications, and system sounds.
-
In the camera app, press a volume key to take a
photo.
• Bixby key
-
Launch the Bixby voice assistant. For more
information, see "Bixby" on page 30.
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