iPhone X Screen Size
The iPhone X has a 5.8 inch screen with a resolution of 1125 × 2436 pixels, about 463 pixels per inch. The screen itself is 2.4 in6.2 cm wide and 5.3 in13.4 cm tall (6.2 cm2.4 in × 13.4 cm5.3 in), measured as a rectangle before the rounded corners.
- Screen
- 5.8 in 14.7 cm
- Resolution
- 1125 × 2436
- Pixel density
- 463 PPI
- Released
- 2017
How big is the iPhone X screen?
- Screen (diagonal)
- 5.8 in (14.7 cm)
- Screen width
- 2.4 in6.2 cm · 6.2 cm2.4 in
- Screen height
- 5.3 in13.4 cm · 13.4 cm5.3 in
- Screen area
- 13 sq in83 sq cm
- Aspect ratio
- 19.5:9 (2.17:1)
- Resolution
- 1125 × 2436
- Total pixels
- 2.7 million
- Pixel density
- 463 PPI
- Pixels per cm
- 182
- Pixel size
- 0.055 mm
- Released
- 2017
Which iPhones came out in 2017?
Apple released 3 iPhones in 2017: the iPhone X, iPhone 8 Plus and iPhone 8. Their screens ran from 4.7 to 5.8 inches. It had the biggest screen of the 2017 iPhones.
The iPhone 8 Plus is about a third of an inch smaller corner to corner, with about the same screen area. The iPhone 8 is about an inch smaller corner to corner, with about a quarter less screen area.
The iPhone XS Max followed in 2018, with a 6.5 inch screen at 1242 × 2688 and 456 PPI.
How sharp is the iPhone X screen?
At 463 pixels per inch, single pixels vanish for 20/20 vision beyond 7.4 in18.9 cm (18.9 cm7.4 in). You hold a phone closer than that only when reading small print, so the screen looks smooth.
It had the sharpest screen of its year. Across our list, two iPhones have a higher pixel density.
Where does the iPhone X rank among iPhone screens?
Of the thirty-eight other iPhones in our list, thirty have a bigger screen, five a smaller one and three the same size. Our list starts with the 2017 models, so there is nothing earlier to measure it against.
The iPhone X was the first iPhone with this exact screen. Apple used it again on the iPhone XS and 11 Pro.
What is the iPhone X screen size in CSS pixels?
Websites see the iPhone X as 375 × 812 CSS pixels in portrait, with a device pixel ratio of 3. Each CSS pixel uses 3 × 3 screen pixels, which gives the full 1125 × 2436 resolution.
- Viewport, portrait
- 375 × 812
- Viewport, landscape
- 812 × 375
- Device pixel ratio
- 3
- One CSS pixel
- 0.165 mm
A common text size of 16 CSS pixels measures about 2.6 mm (0.10 in) on this screen. The visible area in Safari is smaller than the viewport, because the address bar and toolbar take space. The same 375 × 812 viewport is used by the iPhone 13 mini, 12 mini, 11 Pro and XS.
How does the iPhone X compare with other iPhones?
The table shows the iPhones released around the iPhone X. Width and area are measured against the iPhone X.
Shop for the iPhone X
Affiliate linksMore questions about the iPhone X screen
What are the iPhone X screen dimensions in cm?
The screen is 6.2 cm wide and 13.4 cm tall, with a diagonal of 14.7 cm. The phone body is bigger than the screen.
Is the iPhone X screen 5.8 inches wide?
No. 5.8 inches (14.7 cm) is the diagonal, measured corner to corner. The screen is 2.4 in (6.2 cm) wide.
How many pixels does the iPhone X screen have?
It has 2,740,500 pixels, about 2.7 million, at 463 pixels per inch. Each pixel is 0.055 mm across.
Which iPhones have the same screen as the iPhone X?
The iPhone 11 Pro and XS have the same 5.8 inch screen and 1125 × 2436 resolution. Cases still differ, because the bodies and cameras are not the same.
How we measure
Width = diagonal × resolution width ÷ √(width² + height²), and the same for height, using the pixel counts. Pixel density is the pixel diagonal divided by the screen diagonal.
Diagonal and resolution from Apple's technical specifications. CSS size and pixel ratio from Apple's Xcode iOS Simulator device profiles. Last checked 2026-10-08.