428 × 926 viewport: which devices use it?
428 × 926CSS px · 19.5:9
428 × 926 is the CSS viewport of 1 device in our research, including the iPhone 14 Plus / 13 Pro Max / 12 Pro Max. Turned sideways it becomes 926 × 428.
| Device | CSS viewport | DPR | Physical pixels | Year |
|---|---|---|---|---|
| iPhone 14 Plus / 13 Pro Max / 12 Pro Max | 428×926 | 3 | 1284×2778 | 2022 |
Check your site at 428 × 926
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Designing for 428px wide
Breakpoints
Tailwind: base styles only (below sm, 640px). Bootstrap: xs. Sideways (926px): Tailwind md (sm: md: styles apply).
Room for content
396px with 16px side padding, 380px with 24px. Anything fixed wider than 428px makes the page scroll sideways (how to fix it).
Nearby sizes
Questions people ask
Which phone has a 428 × 926 viewport?
iPhone 14 Plus / 13 Pro Max / 12 Pro Max.
Is 428 × 926 the screen resolution?
No, it’s the viewport in CSS pixels. The physical screen has more pixels: the iPhone 14 Plus / 13 Pro Max / 12 Pro Max is 1284 × 2778 (DPR 3).
Which breakpoint does a 428px wide screen use?
Tailwind CSS: base styles only (below sm, 640px). Bootstrap: xs.
Guides that help
- What is a viewport? CSS pixels vs screen resolutionA viewport is the area your page is laid out in, measured in CSS pixels, not screen pixels. See real numbers from iPhones and MacBooks, then check yours.Guides · 8 min read
- How to fix horizontal scrolling on mobile (12 causes)Page wobbles sideways on phones? The 12 usual causes of horizontal scrolling on mobile, a fix for each, and a console snippet that finds the culprit fast.Fixes · 9 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