iPhone X
Phones · FHD+ · 2017
Resolution
1125×2436
Diagonal
5.8"
Pixel density
463ppi
| Resolution | 1125 × 2436 |
|---|---|
| Resolution class | FHD+ |
| Diagonal | 5.8" |
| Pixel density | 463 ppi |
| Aspect ratio | 19.5:9 (375:812) |
| Total pixels | 2,740,500 · 2.7 MP |
| Physical size | 61.8 × 133.7 mm |
| Screen area | 12.8 in² |
| Pixel pitch | 54.9 µm |
| Pixels vanish at | 18.9 cm |
| Orientation | Portrait |
| Released | 2017 |
How to read this
- Pixel density (ppi) is how many pixels fit in one inch. Resolution alone cannot tell you — you have to divide by the diagonal.
- The same 4K is 163 ppi on a 27" monitor and 68 ppi on a 65" TV. That is more than double, but a TV is watched from far away, so it does not matter.
- The distance at which pixels vanish comes from one arcminute, the limit of human sight. Once a pixel looks smaller than that, no eye can find the grid.
- Aspect ratio is width and height reduced to the simplest whole numbers. Modern phones are 19.5:9 or 20:9, so 16:9 video leaves black bars on the sides.
Frequently asked questions
Q. What is the iPhone X screen resolution?
1125×2436 pixels — 2,740,500 in total, about 2.7 megapixels, which puts it in the FHD+ class.
Q. What is the pixel density of the iPhone X?
463 ppi. That is the diagonal in pixels of a 1125×2436 grid divided by the 5.8" diagonal of the panel, and it makes each pixel about 54.9 micrometres across.
Q. How big is the iPhone X screen in millimetres?
61.8 mm wide and 133.7 mm tall, worked out from the 5.8" diagonal and the 375:812 aspect ratio. The visible area is roughly 12.8 square inches.
Q. How far away do pixels stop being visible on the iPhone X?
About 18.9 cm. That is where a pixel subtends less than one arcminute, the limit of human sight — closer than that and the grid starts to show.
Q. What aspect ratio does the iPhone X use?
19.5:9 (exactly 375:812), with the long edge 2.17× the short one. It is taller than it is wide, which suits a device you hold in one hand.
Screens of a similar size
The same diagonal at a different resolution means a different density. 4K is 163 ppi on a 27" monitor and 68 ppi on a 65" TV.