You can choose among these lock options, listed in approximate order of strength:
GSlide provides no protection, but lets you get to the Home screen quickly, or open Camera and start taking pictures immediately.
GFace Unlock lets you unlock your phone by looking at it. This is the least secure lock option.
GPattern lets you draw a simple pattern with your finger to unlock the phone. This is slightly more secure than Face Unlock.
GPIN requires four or more numbers. Longer PINs tend to be more secure.
GPassword requires four or more letters or numbers. This is the most secure option, as long as you create a strong password.
Important For best security, specify a password that is
GA least 8 characters long.
GContains a mixture of numbers, letters, and special symbols
GDoesn't contain any recognizable words or phrases.
Related settings
Settings > Device > Display > Sleep
Settings > Personal > Security > Make pattern visible
Related topics
Use the lock screen
Encrypt your phone
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