what is an hdr 4k?
thanks
HDR is High Dynamic Range, a feature on newer devices. New OLED TVs are also HDR capable.
HDR capable TVs are generally midrange models or higher. UHD Bluray and Amazon Prime Video are HDR sources, for example.
There are two major HDR standards in home entertainment, Dolby Vision and HDR 10. Most HDR TVs that only say HDR are HDR 10 capable. Those that offer Dolby Vision compatibility would usually indicate so.