How to cap image fidelity to 2x and save 45% image weight on high-end mobile phones

Andrea Verlicchi
Nov 14, 2020 · 5 min read

With the rise of very high density “super retina” displays in the newest high-end devices, capping image fidelity to 2x leads to a big improvement in terms of rendering speed, and no perceivable quality loss for your users. Here’s a new best practice on how to do that.

Apple and Google devices with 3x HiDPI displays (excluding “Max” versions)

Images x screen densities