The BT Sport app is a great way for BT Sport subscribers to watch live sports content on their Android, Android TV, and Google TV devices. With the app, users can watch all BT Sport channels in up to full HD 1080p at 50fps, with select events available in up to 4K HDR with Dolby Atmos audio. The app also offers catch-up options for those who missed the live action, with full match replays, highlights, and clips available on demand.

The app provides access to a growing line-up of live events, including UEFA Champions League, UEFA Europa League, Premier League, Premiership Rugby, European Rugby Champions Cup, UFC, WWE, Australian Cricket, Serie A, Ligue 1, and Moto GP. The timeline feature for football and rugby allows users to skip back to key moments of the live match, while exclusive live streaming of every single match from the UEFA Champions League and UEFA Europa League is also available.

It is important to note that a valid BT Sport subscription and BT ID are needed to stream subscription content, and a BT Sport Ultimate subscription and compatible device are required to access content in up to 4K HDR with Dolby Atmos audio. Up to 4K is only available on Android TV and Chromecast devices, and BT Sport App Only subscriptions are not eligible to use Chromecast or Android TV devices. Users are also restricted to two concurrent video streams per BT ID, and mobile network and wifi charges may apply. All video is available within the United Kingdom, Channel Islands, and Isle of Man.

In summary, the BT Sport app offers a convenient way for BT Sport subscribers to watch live sports content on their Android, Android TV, and Google TV devices. With access to a growing line-up of live events, catch-up options, and exclusive live streaming of UEFA Champions League and UEFA Europa League matches, the app provides a comprehensive sports viewing experience. However, users should be aware of the subscription and device requirements, as well as the restrictions on concurrent video streams and geographic availability.