In fact, you probably won’t be able to tell the difference between 1080p and 4K televisions when comparing them side-by-side. David Pogue:
Look, most analyses (and just trying it out yourself) point out that you can’t even see the difference between 720p and 1080p high definition at normal viewing distances.All analysis establish that 4K, therefore, is a ludicrous concept. It’s quadrupling resolution that’s already too high for anybody to discern.
In other words, common sense tells you that the resolution wars are indeed marketing puffery—and now you can do the math.