Long story short, it depends..[0] In most cases, I'd guess that most people mean 3840×2160. [0]: https://en.wikipedia.org/wiki/4K_resolution https://en.wikipe

Long story short, it depends..[0] In most cases, I'd guess that most people mean 3840×2160. [0]: https://en.wikipedia.org/wiki/4K_resolution https://en.wikipedia.org/wiki/4K_resolution