Two of the best are the Roku Ultra and the Roku Streambar. Both come with features like 4K streaming and Dolby support, but beyond that, how exactly do they differ and which one is the better fit ...

Over the years, I've used out plenty of Roku's video streamers, but until recently I'd never tested one of its Streambar range, which combine a small soundbar with Roku's entry-level 4K HDR streamer.