Viewports and Breaking Points Here is a list of viewports and breaking points for most common platforms to check your design specs for responsiveness. Remember to check all the important ones your software should be working on and if they're not here, add them to the list ;) Mobile phones (width between 320px and 576px) Tablets (width between 768px and 992px) Medium Desktops (width between 992px and 1200px) Large Desktops (width between 1200px and 1920px) Ultra Wide Desktops (width is more than 1920px) TVs TVs work with a 16:9 aspect ratio. Normally when you're dealing with Smart TVs, the minimum width is 1920px, but that can increase dramatically, so check this further before starting a TV project. Wearables