Meaning
What It Means
A higher pixel density usually makes text and fine details look sharper, especially at close viewing distance.
It is useful alongside screen size and resolution because those values together explain how sharp the display will feel in real use.
Why It Matters
Where You Will See It
This term can appear on full specification tables, product comparison pages, and the inline help icons placed next to technical labels.
Use the glossary when you want a quick explanation before comparing two devices feature by feature.