21:9

Wider than widescreen

21:9 is an aspect ratio describing the relationship between width and height of a display or image—21 units wide for every 9 units tall.

This ultrawide format appears in cinema screens and computer monitors marketed to gamers and professionals who benefit from extended horizontal vision: My new 21:9 monitor is great for spreadsheets and immersive gaming.

Sometimes expressed as 21×9.

display

ultrawide

Extremely broad aspect ratio

widescreen · screen · resolution · gaming · immersive · panel · curved · productivity · multitasking · horizontal

cinema

anamorphic

Intentionally warped for correction

widescreen · Hollywood · epic · scope · letterboxing · projection · movies · cinematography · director · landscape shots

gaming

FOV

Visible area extent

competitive · flight simulator · GPU · framerate · stretched · native support · HUD · minimap · visibility · surround

productivity

multitasking

Doing several things concurrently

spreadsheet · coding · timeline · video editing · workspace · efficiency · documents · browser tabs · programming · DAW

Opposites
aspect ratio width

21:91

Smallest positive integer

6 · portrait mode · vertical video · fullscreen · 4

Familiarity
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Used worldwide · Timeless · Rated G