– How can my iPhone display a video in 4K if my screen resolution doesn’t have 4K pixels horizontally?

Question

I understand that screen resolution is the number of pixels measured horizontally and vertically. Then the size of the screen is used to calculate the PPI. But if my screen resolution is only 2796×1920, how would I be able to view any video in 4K?

In: 214

Answer 1

It’s the same way you can look at a 240p YouTube video full screen. It scales to fit your above 240p display. The 4k video just scales down.