The Roku is a media streaming device that can be used to watch Live TV Streaming Services.
They offer seven different versions: Roku Express, Roku Express+, Roku Streaming Stick, Roku Streaming Stick+, Roku Premiere, Roku Premiere+, and Roku Ultra.
We find that the Roku Streaming Stick and Roku Express are too underpowered for most Live TV Streaming Services. Unless you need Dolby Optical, we don’t think it’s necessary to upgrade to the Roku Ultra.
With their latest update you can now AirPlay to Roku streaming players and Roku 4k TVs.