iMac 24″ 4.5K display

The iMac 24″ 4.5K ships a 23.5-inch panel at 4480×2520 — 219 pixels per inch. At the default 2× scaling, macOS renders a workspace that looks like 2240×1260 points while drawing every element with four physical pixels.

The 4.5K Retina display of the 24-inch iMac (2021 onward): a 23.5-inch panel with P3 wide color at 500 nits. The odd-sounding 4480×2520 is exactly what's needed to hold 218 PPI — Apple's desktop Retina density — at this size.

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