Schlage Sense Smart Deadbolt is a smart lock that will definitely make life easier. The lock works using a normal key (boring), a pin on the keypad, or by asking Siri, who will gladly open your front door if you ask her the question. If you're not impressed by that, I give up.
The automation feature allows your devices to know when you leave home and when you arrive, preparing your home just the way you like it.
The Schlage lock comes with a handy app that can be downloaded from most app stores. From there, you can control the lock by changing access codes, creating scheduling and implementing auto lock settings.