Stream your favorite TV shows and movies straight to your TV with the Roku Ultra. It has voice search to make finding your next binge easier, and it's compatible with 4K Ultra HD displays for crystal-clear picture quality. The Roku Ultra includes a lost remote finder so you never have to search the couch cushions again.
I was excited to try 4K streaming, but the Roku Ultra has managed to disappoint in every possible way. The trouble began as a series of intermittent HDCP errors (purple screens), with no help to be had from Roku support. I bought a series of expensive cables from every vendor I could find, but nothing would fix the issues.
For the time, I went back to standard 1080P format -- and finally a series of software updates was made to the Roku to supposedly "fix" the issue. It seemed to be working for a bit. I began streaming my first show with Netflix in 4k format, and then some strange audio interruptions would happen randomly during viewing. Shortly after this, the signal would de-sync, and then both the audio and visuals would drop out for a few seconds. Sometimes when watching Netflix in 4K the red colors would become saturated and flash for one or two frames before returning to normal. I thought maybe Netflix was to blame, so I tried Prime, Youtube, and the built in News feed -- all with the same results. In combination with this, I again tried every HDMI cable I could get my hands on, but no luck.
I began to suspect it was the television (Samsung 4K 60" KS8000 Quantum series), so I hooked my PS4 Pro up and was able to run Netflix, Prime, and games at 4K without a single interruption -- even on the lowest rated HDMI cable I had. I have put up with this issue for months now, browsing every forum I could find on Google searching for a solution, and reading similar stories from other users. Here we are 6 months later, and nothing has been resolved.
I've been cautioning everyone I know away from these devices -- stick to the built in software or apps available on 4k Bluray players or the PS4 pro -- at least until Roku irons out all of the bugs.