Pixels Per Inch measures pixel density. Higher PPI means sharper text and images.

What PPI is considered good?

Above 100 PPI for desktops, above 200 PPI for phones. Apple Retina displays are 218+ PPI.

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What is PPI?: Pixels Per Inch measures pixel density. Higher PPI means sharper text and images.
What PPI is considered good?: Above 100 PPI for desktops, above 200 PPI for phones. Apple Retina displays are 218+ PPI.