https://wccftech.com/youtube-just-stopped-classifying-720p-as-high-definition-only-1080p-and-above-is-hd/ > For years we've been calling 720p as HD (high-definition). But according to a new change rolled out by YouTube, 720p is no longer HD. Let's fight! > We know how things are in the world of video. If it's 360p or 480p, we straight up call it 'standard definition.' When it's 720p or above, it's 'high-definition.' We further break down the 'high-definition' category into Full HD, UHD and so on. The higher the resolution, the fancier the name gets.