AdRing Smart Video Doorbells: Help Monitor Home Anywhere. Expand Your Security Today. See Who’s There With Ring. Answer the Door and Check-In on Home at Anytime From Anywhere.
Models: Battery Doorbells, Video Doorbell 2nd Gen, Video Doorbell 3, Video Doorbell 4
Ring's New Doorbell Has 1080p Video & A Swappable Battery – TechCrunch