– 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

Imagine you have a 1-liter bottle of water and you pour it into a 200-ml cup, what happens? The cup holds what it can (200 ml), and the rest goes to waste (800 ml).