951 × 669 viewport: which devices use it?
951 × 669CSS px · 16:11.3
951 × 669 is the CSS viewport of 1 device in our research, including the iPhone Duo — unfolded. Turned sideways it becomes 669 × 951.
| Device | CSS viewport | DPR | Physical pixels | Year |
|---|---|---|---|---|
| iPhone Duo — unfolded | 951×669 | 3 | 2670×1878 | 2026 |
Check your site at 951 × 669
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Designing for 951px wide
Breakpoints
Tailwind: md (sm: md: styles apply). Bootstrap: md. Sideways (669px): Tailwind sm (sm: styles apply).
Room for content
919px with 16px side padding, 903px with 24px. Anything fixed wider than 951px makes the page scroll sideways (how to fix it).
Questions people ask
Which phone has a 951 × 669 viewport?
iPhone Duo — unfolded.
Is 951 × 669 the screen resolution?
No, it’s the viewport in CSS pixels. The physical screen has more pixels: the iPhone Duo — unfolded is 2670 × 1878 (DPR 3).
Which breakpoint does a 951px wide screen use?
Tailwind CSS: md (sm: md: styles apply). Bootstrap: md.
Guides that help
- Most common screen resolutions in 2026 (real data)StatCounter's August 2026 figures for the most common desktop, mobile and tablet screen resolutions, what they really measure, and which sizes to test.Data · 7 min read
- Responsive breakpoints in 2026 — the widths that matterWhere 123 real phones, tablets, laptops and monitors land in CSS pixels, which responsive breakpoints actually matter in 2026, and which screens to test.Guides · 8 min read
- Tailwind breakpoints on real devices, from sm to 2xlWhich real phones, tablets, laptops and monitors land in Tailwind's sm, md, lg, xl and 2xl breakpoints, upright and sideways, plus the gotchas that bite.Guides · 8 min read