Apple updated its iPhone a bit ago making the form factor much bigger. The iPhone 6 screen size is both wider and taller and the iPhone 6 Plus also has a higher pixel density. This is an samasitu.com update to my previous post about designing websites for the iPhone 5. It’ll cover these new screen sizes and try to clarify how this all works.
Update: Apple has released the iPhone 6s and iPhone 6s Plus. The iPhone 6s screen size is identical to the previous iPhone 6 versions, so feel free to follow the existing sizes below.
Update 2: Apple announced the iPhone 7 & 7 Plus. These iPhone 7 models follow the same screen sizes as the 6s & 6s Plus, you can use the sizes listed below.
Update 3: Apple announced the iPhone 8, 8 Plus, and iPhone X. These iPhone 8 models follow the same screen sizes as the 6s / 7 & 6s Plus / 7 Plus, you can use the sizes listed below. The iPhone X is a new size and has been added to the charts.
iPhone Screen Measurements
There are a few different values to consider when looking at the iPhone screen sizes. I’m going to get these values defined here so the chart below makes more sense:
iPhone Display Size (inches) – This is diagonal measure of the screen, from corner to corner, just like you’d measure a TV.
iPhone Rendered Pixels – This is the full number of pixels that are being rendered. This is the value you get when you apply the multiplier (1x, 2x, 3x) the device uses to the screen size in points. If you’re creating an image and want it at the max resolution, this is the size you’d use. I’ve also written an article on Retina images if you’d like to learn more.