Meet the 90K Lock: a smart lock designed for smart homes. It has a camera and fingerprint reader to let you see who is at your door and unlock your door more conveniently. Every time the doorbell is touched, you get a video call on your phone to see your guest. The lock has a microphone, so you can communicate with your guests from your phone.
The 90K Lock auto locks for your protection. It lets you communicate with your guests from your iOS or Android device. You can find out more on Kickstarter.