Ring Video Doorbell can be installed on the door. This can work really well, especially for the Ring Doorbell 1 and 2 which doesn’t need to be hardwired.

If you’re unable to find enough space (even with a Pro, or a corner kit) to install your Ring Doorbell, then the other option is to install your smart doorbell on the wall next to your door instead. What do I do if my ring doorbell doesn’t fit?

So, to make it clear: Yes, you need a Wi-Fi internet connection to use a Ring Video Doorbell.

Ring security devices work by connecting to a Wi-Fi network which enables the device to communicate with a smart phone, laptop, or desktop computer. The Ring Peephole Cam offers some of the same powerful array of features as our other smart doorbells, including 1080p video Live View with night vision, two-way talk, and motion detection that can alert you when a visitor has come to the door.