Samsung Galaxy S3 User Manual page 160

Help text: Touch this option to enable/disable
showing text explanations of lock screen features.
When enabled, a check mark displays in the check
box.
Wake up in lock screen: Touch this option to
enable/disable unlocking the phone by saying the S
Voice wake-up command. When enabled, a check
mark displays in the check box. (For more information
about S Voice, see "S Voice" on page 119.)
Set wake-up command: Touch this option and to
change the S Voice wake-up command. (For more
information about S Voice, see "S Voice" on
page 119.)
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Face unlock options:
Lock screen widgets allows you to lock the widgets
that are displayed on your home screens.
Improve facial recognition allows you to improve
your device's face matching capability by capturing
your face in different lighting, with or without glasses,
and bearded or clean-shaven. Follow the on-screen
instructions.
Presence check When enabled, requires that you
blink when using the Face unlock feature. This will
increase the security of the feature.
Lock automatically lets you set a time-out for the
screen to lock automatically.
Lock instantly with power key When enabled, you
can instantly lock the screen by pressing the Power-
Lock key.