Ring is one of the few video doorbells on the market. It easily replaces your existing doorbell with a WiFi enabled camera.
Easily be able to tell who is at the door, and with a paid subscription ($3/month) save recordings. While the device is awesome, the subscription model sucks, just another monthly bill to tack on to every other smart gadget that wants to charge you on a regular basis.
The device is really handy though, you can tell when you are getting a delivery, when friends or family show up, and even when someone is attempting to break in.
The device links with your smart phone and immediately sends you a notification when someone is at your door. With the subscription, these videos are saved in the cloud. Without the subscription, you are only able to access live feed.
The regular version is $99 and the pro version is $250, but can be purchased from Amazon.
All images are from Amazon product pages