Introducing Chromecast UltraDelivers 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.
The device streams great with an awesome image. However, there can be improvements. For example, once you cast youtube you cannot use your cell phone to watch a different video on your phone at the same time. Another phone would have to take over the cast to use the same application. This only happens when you are using the same application in chromecast and phone. You can freely use other apps. Another thing it doesn't have is passcode protection. Anyone connected to wifi can cast. This can be annoying with roomates that want to mess around with you and have acces to the same wifi.