I was following the sizes listed here, and I've been creating the artboards with the sizes in points, but should I be creating them with the size for rendered pixels instead? Furthermore, I believe Sketch use points but correct me if I'm wrong.

3 Answers 3


As the page you linked to says, the point units are an abstract system for determining coordinates; they don't directly correspond to pixels on a screen but give a convenient coordinate space across devices; so you can have an icon that is always 40 × 40 pt even though it is rendered at different pixel sizes on different devices.

If you're creating raster images (i.e. made of pixels at a specific size) then you want to make your images at the actual pixel size of the screen. Namely;

  • 320 × 480 pixels for original iPhones
  • 640 × 960 pixels for iPhone 4/4S
  • 640 × 1136 pixels for iPhone 5/5S
  • 750 × 1334 pixels for iPhone 6/6S/7
  • 1080 × 1920 pixels for iPhone 6/6S/7 Plus

The reason Sketch would (I assume, I don't actually use Sketch) use points is because it works with vectors. If you're working exclusively with vectors then all that really matters is the proportions of the image; so you can work in points (or any other size/unit in the correct proportions; points are just convenient) to create assets to be used across multiple devices and output at the correct pixel sizes when needs be.

  • Just a suggestion... explaining that it's the proportion of the graphic/image which is more important working in vectors may be beneficial. I'm not a Sketch user either and I couldn't add anything more to your answer other than this. +1
    – Scott
    Apr 13, 2017 at 18:18
  • @Metis sure, that's a good point. I'll add something when I've got a bit more time later on
    – Cai
    Apr 13, 2017 at 18:20
  • iPhone Xs are weird (1125 x 2436).
    – SilverWolf
    Feb 15, 2018 at 2:49

Make them FullHD, 1080x1920 in pixels. Forget the pt unit in this case.

  • This would be the same size for all the iPhones from 2g-7+?
    – stumped
    Feb 12, 2017 at 8:29

1136 x 640. this is the standard size of iphone and if you want to know exactly Capture the screen shot and bring it in photoshop there is the accurate size.

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