The doorbells of years past may have been dumb as doorknobs, but that's certainly not the case for the Ring Video Doorbell 2, what builds beautifully upon earlier devices from the smart home company.
Yale's Look doorbell lets you chat up guests from afar, while its Linus and Assure smart locks can unlock the door via Nest and Bluetooth, respectively.
Got a dog that's not particularly vocal about when it needs to go outside? Rig up a cheap DIY doggy doorbell this weekend with these simple instructions
The Smartbell is an advanced doorbell solution that notifies you of visitors on your smartphone. It uses Wi-Fi to establish a video chat while you're out.
Those who pledged for the DoorBot will receive the product this September, and it'll come with more features and smaller hardware than originally teased.