Glossary
Ultrawide monitor
A display with a wider aspect ratio than a standard screen, giving extra horizontal space instead of using two separate monitors.
An ultrawide monitor uses a wider aspect ratio than a standard 16:9 screen, commonly 21:9 or 32:9, which gives a lot of extra horizontal space in a single panel. This lets several windows sit side by side, such as a document next to a browser and a chat app, without the visible seam and separate bezels of two physical monitors.
Because the screen is a single continuous surface, mounting and viewing distance work a little differently than with dual monitors. An ultrawide typically needs to sit slightly farther back to keep the outer edges from feeling too far in peripheral vision, and a monitor arm rated for its extra width and weight makes it much easier to fine-tune that distance and height compared with the stock stand.
Curved ultrawide panels are common and are meant to keep the edges roughly the same viewing distance from the eyes as the center, but they need to be squared up carefully, since a slightly rotated curved screen looks more obviously crooked than a flat one. VESA compatibility is also worth checking directly, since some ultrawide models use nonstandard mounting patterns that need an adapter.