Not sure about that. Vudu 4k includes HDR and Atmos. Ntek is not there yet but as I understand, it is in the works. I will agree that Ntek video is impressive and runs flawlessly for me. I have watched HD only on Vudu and it ran without delay with good quality video and Dolby HD. I think I'll try a Vudu 4k today since I just finished up my Atmos sound and it's raining.