Smart Lock is a security feature, allowing users to unlock by different mechanisms such as images, gestures, peripheral devices ... For example: put your face in front of the camera to detect unlock because using password or fingerprint sensor ...
There are 5 methods of Smart Lock including:
Body detection: This method uses the accelerometer to determine the position of the smartphone. That means where the smartphone is located? For example, in a pocket, bag, or hand held, the device will always be opened if the user carries it with him.
Trusted Location: This method is pretty cool, it will only unlock when it is in a trusted location that has been set by the user. For example, when the factory is automatically unlocked, otherwise the machine will be locked.
Trusted device: To use this method, force the smartphone you are using to have connections such as Bluetooth, NFC to unlock. With a smartphone with NFC, you just need to touch the device to the device to be able to unlock the screen.
Trusted face: With this method, you just need to keep your face in front of the camera to be able to unlock it, without complicated touches.
Trusted voice: "Ok Goolge" this is the word you have to say to unlock the device, the system will analyze your voice, if it is correct, the screen will open.
How to enable Smart Lock
It can be seen that the Smart Lock feature has a lot of optional methods for users to use. To activate this feature, please follow the steps below: On your screen, select Settings> Security> Smart Lock> Enter your phones PIN> Select the method as mentioned above and activate.
Finally, after activating the Smart Lock feature on Android, you just need to follow the instructions of each feature you choose to be able to use that feature in the best way. Good luck!