Smart Lock gives you a faster way of unlocking your phone than entering a password, PIN, or pattern.
Set up your phone to automatically unlock the screen when it's with you, it detects a trusted device nearby such as your
Bluetooth® headset, or you're in a trusted place such as within your home network. This is a good option if you don't want to enter your credentials each time you unlock your device.
Home screen, tap
Screen lock, and then select and set up a screen lock.
This will be your backup screen lock method.
Device security, tap
Confirm your screen lock.
Choose what you want your phone to detect before it unlocks.
Follow the onscreen instructions.