Screen sizesmonitor

5120 × 1440 viewport: which devices use it?

5120 × 1440CSS px · 32:9

5120 × 1440 is the CSS viewport of 1 device in our research, including the 49″ Super-ultrawide 5120×1440.

DeviceCSS viewportDPRPhysical pixelsYear
49″ Super-ultrawide 5120×14405120×144015120×1440–

Check your site at 5120 × 1440

Paste your address (or localhost:3000). doesitfit shows it on real screen sizes at once and tells you, bluntly, where it spills.

Free, no sign-up. Or ask Claude, ChatGPT or Codex to check it.

Designing for 5120px wide

Breakpoints

Tailwind: 2xl (sm: md: lg: xl: 2xl: styles apply). Bootstrap: xxl.

Room for content

5088px with 16px side padding, 5072px with 24px. Anything fixed wider than 5120px makes the page scroll sideways (how to fix it).

Questions people ask

Which monitor has a 5120 × 1440 viewport?

49″ Super-ultrawide 5120×1440.

Is 5120 × 1440 the screen resolution?

No, it’s the viewport in CSS pixels. The physical screen has more pixels: the 49″ Super-ultrawide 5120×1440 is 5120 × 1440 (DPR 1).

Which breakpoint does a 5120px wide screen use?

Tailwind CSS: 2xl (sm: md: lg: xl: 2xl: styles apply). Bootstrap: xxl.

Guides that help