Samsung GALAXY S8 User Manual page 28

Front camera: Takes pictures and records videos
•
while facing the screen, and allows you to video
conference.
Iris scanner: Scan your iris to unlock your phone.
•
Power key: Turn the phone or screen on or off,
•
enable Emergency mode, or restart the phone.
Bixby key: Activate Hello Bixby.
•
Volume keys: Adjust the ringtone or media volume
•
or adjust the voice volume during a call.
Iris detection LED: Detect your iris when using the
•
iris scanner.
Proximity sensors: Detect when objects are close
•
to the screen. For example, when you hold the
phone to your ear while on a phone call, the sensors
temporarily lock the screen to prevent accidental
screen touches.
Earpiece: Listen to calls and automated prompts
•
when using the phone.
Learn About Your Device 21