If you’re after quality, know the numbers that you’re looking at and what they mean. Resolution refers to the number of individual pixels—the more there are, the sharper the picture, too few, and it can look grainy. 1080 is pretty standard and will do the job nicely. The other figure worth checking is the number of frames per second (fps) your chosen camera can snap. The higher the number, the smoother the feed, but 30fps will be adequate for most people. Your internet connection and bandwidth is also a factor—however high spec your camera is, if the internet is throttled, your picture will be poor.