Meet the EZVIZ DB1: a WiFi video doorbell with a 3MP lens that can capture a 180-degree vertical field of view. It can be used with an app to give you a clear view of their visitors from head to toe.
The DB1 starts a video call via the app on your smartphone when a visitor rings your bell. It can send instant alerts with images and videos captured when a visitor is detected. You can find out more about it here.