The Zmodo Greet camera is 720p resolution and will store 8GB of video footage internally with an option for subscription based cloud backup service. You also have access to live feed anytime you want it via your smart phone or online. Infrared night vision allows you flexibility and security in identifying who is at your door whether during the day or at night, as the camera can switch to black and white night vision view in the dark based upon your customized sensitivity adjustments. The iseeBell Wi Fi Enabled HD Video Doorbell provides wi fi connection 2. 4GHz in a simple installation. This video doorbell design is powerful and compact, at just 3. 3”x2. 9”x0. 9”, and it is also budget compatible. Using a wi fi connection, your iseeBell doorbell will sync with the companion app on either an iOS or android phone. From this app, you will be able to view live video streaming from your front door and/or speak with visitors at your door.