This smart lock works like something from a Mission Impossible movie. It's a bit expensive compared to others, but it also includes several additional features. There are four ways to open the lock - via fingerprint, keycode, a physical key, or unlocking it with your smartphone. It employs a 3D fingerprint sensor, which ensures that the lock doesn't respond to lifted prints. This is one of the most secure keypads since the numbers continuously change positions. This means that if someone was watching while you entered the access code, the buttons will move and they won't be able to guess the code correctly. You get three attempts to enter the code before the keypad requires you to enter the correct code twice.