Statistics of used iPhones with and without a retina screen?

Question

iPhone

Colleagues, please tell me where can I see the statistics of iPhones in circulation (or sales)? What it is for is to find out the percentage of screens used. Those. how many more devices with 320x480 are in circulation and how many with retina.
I would like to understand how justified the scrupulous adjustment of the interface for small screen resolutions. For example, we use an image with text - everything is readable on the retina, but at 320x480 it is somewhat unclear, so the question is whether it is necessary to swallow tons of parrots so that it looks good everywhere or you can neglect the old screens.

Answer 1

Perhaps StatCounter 's statistics on the resolution of mobile devices (not just iPhone) will be useful.

Answer 2

Don't bother. The proportion of NEretina iPhones is small, and given that almost nothing is downloaded from the epstor with 3GS, then it can be neglected altogether.