iPhone 18 Pro: viewport size

402 × 874 CSS pixels · Apple phone

The iPhone 18 Pro viewport used by Mobile Preview is 402 × 874 CSS pixels in portrait and 874 × 402 in landscape. The camera is a Dynamic Island.

Size at a glance

Portrait402 × 874 px
Landscape874 × 402 px
Aspect ratio (height / width)2.17
CameraDynamic Island
Tailwind (portrait)below sm (under 640px)
Tailwind (landscape)md (768px and up)

These are CSS (layout) pixels, the sizes used by the Mobile Preview frame. Real devices can differ slightly with the browser interface, the display zoom setting or the operating system version.

Test it in CSS

Prefer breakpoints based on your content over device-specific rules. If you need to reproduce this exact size, for example to debug a layout, this media query matches it in portrait:

@media (width: 402px) and (height: 874px) {
  /* iPhone 18 Pro, portrait */
}

The Dynamic Island cuts into the top of the screen in full-screen layouts. Add viewport-fit=cover to your viewport meta tag, then pad fixed headers with env(safe-area-inset-top) so nothing hides behind it.

Devices with the same viewport as the iPhone 18 Pro

These frames use the same 402 × 874 viewport, so one check covers them all:

Preview the iPhone 18 Pro in VS Code

The iPhone 18 Pro frame is part of Mobile Preview Pro (€6.99, one-time payment, no subscription). The free version includes the iPhone 16, iPhone 17 and iPhone 17 Pro Max. Install the extension, start your dev server, run “Mobile Preview: Show” and pick the iPhone 18 Pro from the device menu: your page appears in the frame next to your code and reloads when you save.

Install Mobile Preview · Step-by-step guide

Similar widths

Frequently asked questions

What is the iPhone 18 Pro viewport size in CSS pixels?
402 × 874 in portrait (width × height) and 874 × 402 in landscape, as used by Mobile Preview. The physical screen has more pixels than this; CSS pixels are what your layout sees.
Which Tailwind breakpoint does the iPhone 18 Pro fall in?
With Tailwind's default breakpoints, the iPhone 18 Pro is below sm (under 640px) in portrait and md (768px and up) in landscape.
Can I preview my site on the iPhone 18 Pro in VS Code?
Yes. The iPhone 18 Pro frame is part of Mobile Preview Pro (€6.99, one-time payment). The free version includes the iPhone 16, iPhone 17 and iPhone 17 Pro Max.

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