Xiaomi has been dropping more spec-related hints as to what the Mi TV 5 will be capable of in the run-up to its launch. According to the OEM, it will be 4K and have 108% of the NTSC color gamut. It will also have a faster processor, as well as more RAM and storage compared to the average Android TV.
https://www.notebookcheck.net/The-Xiaomi-Mi-TV-5-is-shaping-up-to-be-a-powerful-smart-screen.440841.0.html