iPhoneiOS · phone · 2022

iPhone 14 Plus / 13 Pro Max / 12 Pro Max viewport size

428 × 926CSS px · 3× DPR · 1284×2778 physical

The iPhone 14 Plus / 13 Pro Max / 12 Pro Max gives web pages a 428 × 926 CSS pixel viewport in portrait. That’s the width your layout and media queries actually see, not the 1284 × 2778 physical pixels of the screen: with a device pixel ratio of 3, every CSS pixel is 3 × 3 real pixels.

CSS viewport (portrait)428 × 926what web pages get

Landscape926 × 428phones and tablets turned sideways

Device pixel ratio3×1 CSS px = 3 × 3 screen pixels

Physical resolution1284 × 27786.7″ screen

Visible in the browser428 × 785Safari (iOS 26), first load

Released2022iOS phone

See your site on an iPhone 14 Plus / 13 Pro Max / 12 Pro Max

Paste your address (or localhost:3000). doesitfit shows it at exactly 428 × 926, with Safari (iOS 26)’s bars if you want them, and tells you if anything spills.

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

What a web page actually sees

The full viewport is 428 × 926, but the browser’s own bars take some of it. In Safari (iOS 26) a page gets about 428 × 785 on first load (47px status bar and Safari’s 94px bottom tab bar on first load; the bars shrink when you scroll). That’s your real “above the fold”. Use 100dvh instead of 100vh for full-height sections, or they’ll hide behind the toolbar (why).

Setting	Width	Height
Full viewport (portrait)	428px	926px
Visible on first load (Safari (iOS 26))	428px	785px
Landscape (full)	926px	428px

What it means for your CSS

Breakpoints

At 428px: Tailwind uses base styles only (below sm, 640px); Bootstrap uses xs. In landscape (926px): Tailwind uses md (sm: md: styles apply), Bootstrap md.

Tailwind breakpoints on real devices

Content width

With 16px of padding on each side your text column is 396px; with 24px it’s 380px. Text closer than 8px to the edge looks cramped (more).

Sharp images

A full-width image needs about 1284px of real pixels (428 × 3).

<img src="hero-1284.jpg"
  srcset="hero-800.jpg 800w, hero-1284.jpg 1284w"
  sizes="100vw" alt="…">

Styles for this width

Content-first breakpoints beat device lists, but if something breaks at this width:

@media (max-width: 428px) {
  /* screens 428px wide and narrower */
}

Other display size settings

The scaling the owner picks changes the viewport your site gets:

Setting	CSS viewport	DPR
Default (Standard) (default)	428 × 926	3
Display Zoom: Larger Text	375 × 812	3

How common is 428 × 926?

428 × 926 isn’t in StatCounter’s top lists for Aug 2026 on its own, but nearby sizes behave the same way. See the most common screen sizes.

Close in size:

Everything about the 428 × 926 viewport · All iPhone sizes

Questions people ask

What is the viewport size of the iPhone 14 Plus / 13 Pro Max / 12 Pro Max?

428 × 926 CSS pixels in portrait (926 × 428 in landscape), with a device pixel ratio of 3. The screen itself is 1284 × 2778 physical pixels.

How much of the iPhone 14 Plus / 13 Pro Max / 12 Pro Max screen does a web page get in Safari?

About 428 × 785 on first load: the 47px status bar and Safari’s 94px bottom tab bar on first load; the bars shrink when you scroll. Design your first screen for that height, not the full 926px.

Which CSS breakpoint does the iPhone 14 Plus / 13 Pro Max / 12 Pro Max fall into?

At 428px wide, Tailwind CSS uses base styles only (below sm, 640px) and Bootstrap uses its xs tier. In landscape (926px) Tailwind uses md (sm: md: styles apply).

How wide should images be for the iPhone 14 Plus / 13 Pro Max / 12 Pro Max?

A full-width image needs about 1284px of real pixels (428 CSS px × DPR 3) to look sharp. Use srcset so smaller screens don’t download it.

How can I test my website on an iPhone 14 Plus / 13 Pro Max / 12 Pro Max without one?

Open doesitfit.lol, paste your address (localhost works too) and pick the iPhone 14 Plus / 13 Pro Max / 12 Pro Max. It shows your site at exactly 428 × 926 CSS pixels and flags anything that spills past the edge.

Guides that help

About these numbers

Confidence: High: confirmed by more than one independent source.

Sources include DeviceAtlas, Chrome DevTools device list (EmulatedDevices.ts), iosref.com, ios-resolution.com. Researched September 2026.