: How to see pixel density (Retina) in Google Analytics? In Google Analytics, "Screen Resolution" is a default dimension under Audience > Technology > Browser & OS reports, but pixel density

@Debbie626

Well, you can look at the Operating System of your users, if it's an iOS or Macintosh you can assume they use retina displays.

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@Kaufman445

Lets turn that around and ask why would you care?

Assuming it's to determine if image/icon size is an issue, I've recently tossed all the multiple-resolution icons and replaced them with SVG graphics. Logos and larger non-vector images are all 2x size in a plain <img> tag.

Positive side effects are faster loads (the SVG is in the main style sheet) and easier modification. Haven't encountered any negative side effects yet.

If IE8 compatibility is required I will run one sprite file - make one page with all your icons and you can just screencapture it for instant sprites.

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@Kevin317

Google Analytics does not support pixel ratio by default but you can add it with script for a custom variable. See github.com/tysonmatanich/GetDevicePixelRatio for more details.

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