A wide field of view, which the majority of the cameras we reviewed have, is anything larger than 80 degrees, and it works best if you mount the camera high in a corner that overlooks the room. Digital ZoomDigital zoom allows you to select part of the video and enlarge it. While this helps you get a closer look at something, the quality of a digitally enlarged video won't match that of the original. The Samsung SmartCam HD Pro has the highest digital zoom in the review at 10x. Smart Home PlatformBefore you buy, check if any home automation or DIY home security systems work with the camera. These systems can use Wi Fi security cameras to control smart locks, thermostats and other devices in your smart home.