Screen sizesmonitor

2560 × 1080 viewport: which devices use it?

2560 × 1080CSS px · 16:6.8

2560 × 1080 is the CSS viewport of 1 device in our research, including the 29″ Ultrawide 2560×1080.

DeviceCSS viewportDPRPhysical pixelsYear
29″ Ultrawide 2560×10802560×108012560×1080–

Check your site at 2560 × 1080

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 2560px wide

Breakpoints

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

Room for content

2528px with 16px side padding, 2512px with 24px. Anything fixed wider than 2560px makes the page scroll sideways (how to fix it).

All devices 2560px wide, whatever their height.

Questions people ask

Which monitor has a 2560 × 1080 viewport?

29″ Ultrawide 2560×1080.

Is 2560 × 1080 the screen resolution?

No, it’s the viewport in CSS pixels. The physical screen has more pixels: the 29″ Ultrawide 2560×1080 is 2560 × 1080 (DPR 1).

Which breakpoint does a 2560px wide screen use?

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

Guides that help