One of the features that Samsung have quietly introduced to the latest release of Lollipop is the ability to unlock your phone with your voice... Trusted Voice.
This joins Trusted devices, Trusted places and On-body detection.
To enable, you will need to set first a PIN number in... Settings > Lock Screen > Screen Lock > PIN (see screenshot)
Now you will need to go to... Settings > Security > Smart Lock > (enter your PIN) > Trusted voice > turn Trusted voice ON. See screenshot.
(N.B. This only works with the English (United States) language currently. Go to Settings > Language and input and change your language if needed.)
This joins Trusted devices, Trusted places and On-body detection.
To enable, you will need to set first a PIN number in... Settings > Lock Screen > Screen Lock > PIN (see screenshot)
Now you will need to go to... Settings > Security > Smart Lock > (enter your PIN) > Trusted voice > turn Trusted voice ON. See screenshot.
(N.B. This only works with the English (United States) language currently. Go to Settings > Language and input and change your language if needed.)