1.5 in

Product detailsNest Hello lets you know who’s there, so you never miss a visitor or package. And with 24/7 streaming, you can check in anytime and view a 3-hour snapshot history to see what you missed. Get an alert and talk to visitors at your door from anywhere, and with intelligent alerts, Nest Hello is smart enough to detect a person and alert you even if they don’t ring. With HD Talk and Listen you can hear visitors loud and clear, and the HD Video delivers crisp, bright, clear images day or night. The Nest Hello requires a wired doorbell, chime, and the right transformer to be compatible. Keep track of your visitors and packages with the Nest Hello. Google Nest Hello Smart Wi-Fi Video Doorbell:24/7 streaming and continuous video recording4:3 video designed to show people from head to toeHDR video shows sharp details even in bright and dark areasPerson, motion, and sound alerts to detect visitorsCan recognize family and friends and send a special alertPrerecorded quick responsesAdd a Nest Aware subscription. Starting at $6 a month for all your Nest cameras, speakers, and displays. Nest Aware gives you more video history and alerts that matter. BrandGoogleManufacturer Part NumberNC5100USManufacturerGoogleColorWhiteAssembled Product Dimensions (L x W x H)2.83 x 5.00 x 6.57 Inches