4K image colour signals (4:2:0) are interpolated into 4K (4:4:4) by a multi-tap chroma process, for natural textures and depth. The UB820 4K Ultra HD Blu-ray Player features our unique chroma processing technology to maximise the beauty of 4K/HDR content, built-in wi-fi with a full smart networking suite that supports 4K streaming, and a 7.1-channel analogue audio output for lifelike surround sound.
This is well built top of notch picture quality and very punchy sound quality, if you have home theatre setup and used ,physical 4K disc.but if you streaming lots of movies online this is not for you. Panasonic online apps are very laggy slow and only Netflix youtube and prime videos is there. Other then that good 4K player.
Tested Blu-ray regions A & B and it works perfectly. Great to be able to play my media collection to watch at any time in the future rather than rely on streaming services which can drop content and particularly don't compare to the quality of 4k Blu-rays.