The Nest Hello video doorbell’s HD video camera allows homeowners to see a live stream of their front door at any time, plus snapshots from up to the last three hours of recording. The 4:3 aspect ratio camera shows people at the door from head to toe, as well as packages on the ground. Even if the doorbell is not rung, homeowners can receive alerts when a person or package is at the front door, through a smart device, Google Home console, or Google Chromecast Ultra, and can hear and speak to visitors through the unit’s speaker and microphone. Pricing starts at $200.