A smartphone is a handheld personal computer

 

The fingerprint sensor is by far the coolest, quickest, and most secure way to unlock your Galaxy S6, so dive into Settings > Lock screen and security > Screen lock type > Fingerprints and follow the onscreen instructions. You can always add more fingerprints later or remove fingerprints in the same menu. It makes a lot of sense to use your thumb if you want to be able to unlock the phone one-handed. You also have the option to set your backup password. At the bottom you’ll find two toggles that dictate whether you can use the fingerprint sensor for Web sign-in and to Verify Samsung account. That means you won’t have to enter passwords for either, you can simply scan your fingerprint instead.