A:Answer If I remember correctly, the Series S does not support 4k 120hz but, it does support 1080p 120hz. So, technically yes, it will support 120hz when the Series S runs a game that is capable of hitting that. (Off of the top of my head COD Warzone and Rogue Company support 120hz on Series S but, they rarely hit the full 120fps mark, there may be some indie games too and older Xbox titles, not for sure entirely, you'll want to search what games support it.)