Delivers everything you love about Chromecast plus faster processing speeds and up to 4K Ultra HD & HDR picture quality. Chromecast Ultra works with iPhone®, iPad®, Android devices, Mac®, Windows®, and Chromebooks. A better way to get 4K video and more to your TV Simply use your mobile device to stream your favorite TV shows, movies, and more to the TV and while streaming, you can still text or call without interrupting what's playing or draining your battery.