While you need a Nest Aware subscription and its recurring cost to get the most out of it, the Nest Hello is the best video doorbell yet. Credit: Tom's GuideToday's best Nest Hello deals?$173. 88ViewRecommended RetailerReduced Price$229$189View$229View$287. 49ViewShow More DealsWe check over 130 million products every day for the best pricesHow Does A Video Doorbell Work?A video doorbell’s operation is probably not going to come as a huge surprise. Essentially, at its most basic level, the video doorbell works like this: There is a camera in the doorbell. When the camera senses movement around the doorbell or the actual ringing of the doorbell, it sends a live video feed to your smart phone. You can see this feed and determine whether or not you want to open the door. In many instances, you will be able to talk to the person at your front door via your phone through your doorbell camera. Sounds pretty convenient, doesn’t it?Not only convenient, but safe. Situations Where A Video Doorbell Would Come In Handy Subscribe to HOMEDITWhile a traditional doorbell might be fine, there are definitely a number of instances where a video doorbell would really increase convenience, improve expectations, and decrease stress. For example, here are some situations in which having a video doorbell installed would really come in handy:When you’re expecting a package.

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Otherwise, you have to use a 20 ohm/10 watt resistor which isn’t included in the package to be able to connect Zmodo to a power source.

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You can still peer out of a glass lens located at the top of the Ring Door View to see who is at the front door when you're standing on the other side.

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