Display specifications
The iPhone 3GS was released on 19 June 2009. Its display is 3.5 inches, 320 × 480 points, which at 1x is 320 × 480 pixels. Pixel density is 163 PPI and the aspect ratio is 3:2.
Points are the unit an app's layout is written in; pixels are what the panel has. How to read these numbers.
| Release date | 19 June 2009 |
|---|---|
| Logical width | 320 pt |
| Logical height | 480 pt |
| Physical width | 320 px |
| Physical height | 480 px |
| Diagonal | 3.5 in |
| Pixel density | 163 px/in |
| Aspect ratio | 3:2 |
| Scale factor | 1x |