Open dataset · CC BY 4.0

iPhone (1st generation) screen size

iPhone (1st generation): 320 × 480 points at @1x, which is 320 × 480 pixels at 163 ppi on a 3.5-inch LCD display.

Screen specs

iPhone (1st generation) screen specs
Points320 × 480 pt
Pixels320 × 480 px
Scale@1x
PPI (Apple)163
PPI (computed from pixels and diagonal)164.8
Diagonal3.5 inches
Aspect ratio2:3 (1.5)
Display typeLCD
ProMotionNo
Always-OnNo
CutoutNone
Home buttonYes
Model identifiersiPhone1,1
Release year2007

Safe area insets

Safe areas haven't been measured for this device yet.

For web developers

CSS viewport: 320 × 480 CSS pixels in portrait, devicePixelRatio 1. CSS pixels equal points.

/* iPhone (1st generation), portrait */
@media (device-width: 320px) and (device-height: 480px) and (-webkit-device-pixel-ratio: 1) {
  /* styles for this screen size */
}
/* needs <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover"> */
.page { padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left); }
/* this device's insets aren't measured yet */

Safari's visible viewport is smaller than the screen because of the browser bars, so window.innerHeight is less than the height above until the bars collapse.

For iOS developers

Same layout size

Same points and scale (320 × 480 pt at @1x):

Compare

Sources

Download and cite

Data: Apple device screen specs by bestlatestapps.com (https://bestlatestapps.com/tools/apple-device-screen-sizes/), licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Built from Apple's published tech specs and Human Interface Guidelines, Wikipedia for model identifiers, and our own Xcode Simulator measurements.

Cite as: Singh, A. (2026). Apple Device Screen Specs (v0.1.0). Zenodo. https://doi.org/10.5281/zenodo.23819103

Also on: Zenodo and Kaggle

Questions

What is the iPhone (1st generation) viewport size in CSS pixels?

320 × 480 CSS pixels in portrait, with a devicePixelRatio of 1. Safari's visible viewport is smaller while the browser bars show.

What is the iPhone (1st generation) screen resolution?

320 × 480 pixels at 163 ppi, shown as 320 × 480 points at @1x.

Does the iPhone (1st generation) have the same screen size as the iPhone 3GS?

Yes, for layout: both are 320 × 480 points at @1x, so apps and web pages lay out the same. Both have 320 × 480 pixels.

Data version 0.1.0, generated 2026-10-27.