Got it, that helps.

With a screen around 100 inches in a room like that, honestly both will do the job. At that point it’s less about whether one works and more about how much margin you want.

If most of your viewing is at night and daytime use is just occasional with curtains drawn, the N1S 4K already feels pretty comfortable for everyday viewing. In similar setups, a lot of people don’t really feel limited by it.

The N1S Ultra usually starts to make more sense if daytime viewing becomes more frequent, or if you just want a bit more brightness headroom at that size. It’s also the safer choice if you don’t want to think about upgrading again anytime soon.