The ultimate streaming player. Brilliant 4K, HDR, and HD picture quality. Our ultimate streaming experience. The Roku Ultra is our most powerful player with our best wireless performance. Brilliant picture quality creates an immersive experience. Whether your TV is HD, 4K or HDR, Roku Ultra will optimize your content for the best picture resolution possible. Plus, get a voice remote with TV power and volume buttons, private listening, lost-remote finder, access to 500,000+ movies and TV episodes and more.