Apple iPhone 6s: CSS viewport of 375 × 667 px, resolution and responsive test

Apple · iOS 9 · Smartphone · 2015

Released in 2015, Apple iPhone 6s features a CSS viewport of 375 x 667 pixels. Here are all its display characteristics and how to check the responsive rendering of your site on this model.

Test your site on Apple iPhone 6s directly in your browser, without buying the device.

  • Over 70 devices included, including a model with the same format
  • Real viewport, User-Agent, and touch events
  • Also works on localhost and in pre-production
  • Exportable screenshots and videos
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Why test your site on Apple iPhone 6s?

Older hardware

The hardware of Apple iPhone 6s dates from 2015. Its processor makes costly animations, heavy scripts, and display times visible that recent devices mask.

2x density

With a density of 2x, Apple iPhone 6s provides a useful benchmark to ensure your images remain sharp without serving unnecessarily large files.

Actual media queries

The 375 x 667 pixels viewport of Apple iPhone 6s rarely matches the round breakpoints of frameworks. It is precisely between these values that layouts break.

CSS viewport resolution of Apple iPhone 6s

This resolution is what your stylesheet actually manipulates. It determines the applied breakpoint, the number of displayed columns, and the size of your images.

  • 375 pixels in width
  • 667 pixels in height

The height remains indicative: Safari, Chrome, and other mobile browsers reduce the visible area with their address bar, which folds on scroll.

Be cautious when analyzing your statistics: some tools only report the manufacturer resolution, never the CSS viewport presented here.

Pixel density of Apple iPhone 6s

2

The device pixel ratio of Apple iPhone 6s is 2.

Each CSS pixel is thus rendered by 2 physical pixels, making any image provided in simple resolution immediately visible.

Manufacturer resolution of Apple iPhone 6s

This is the number of physical pixels on the screen, as announced by the manufacturer. Useful for preparing your image exports, useless for your media queries.

  • 750 pixels in width
  • 1334 pixels in height
  • 16:9 Screen ratio

326 pixels per inch (ppi) · 4.7 inches diagonal, or 11.9 cm

Media queries and code snippets for Apple iPhone 6s

These snippets are generated from the exact characteristics of Apple iPhone 6s. Copy them directly into your stylesheet or configuration.

CSS media query

Targets screens whose width matches that of Apple iPhone 6s and models of the same format.

@media only screen and (min-width: 375px) and (max-width: 666px) {
  /* Apple iPhone 6s */
}

Density media query

Serves high-resolution images to screens of at least 2x.

@media only screen and (-webkit-min-device-pixel-ratio: 2),
       only screen and (min-resolution: 192dpi) {
  /* High-density images and icons */
}

Tailwind configuration

Adds a named breakpoint at the exact width of Apple iPhone 6s.

// tailwind.config.js
module.exports = {
  theme: {
    screens: {
      'apple-iphone-6s': '375px'
    }
  }
}

JavaScript detection

Detects format and density client-side.

const isDeviceWidth = window.matchMedia('(min-width: 375px)').matches;
const isHighDensity = window.devicePixelRatio >= 2;

Meta viewport tag

Essential for Apple iPhone 6s to use its CSS viewport and not a simulated width of 980 pixels.

<meta name="viewport" content="width=device-width, initial-scale=1">

Free Apple iPhone 6s simulator

Mobile FIRST does not yet include Apple iPhone 6s, but a model with the same format is available. You can already validate your breakpoints and display density.

This is where the difference with Chrome DevTools' responsive mode is seen: DevTools resizes a window, the extension replicates the device's browser and allows exporting shareable screenshots and videos.

  1. 01 Install the extension Add Mobile FIRST to Chrome, Firefox, or Edge. Installation is free and requires no account.
  2. 02 Open the page to test Go to the URL to check, including a local address like localhost:3000.
  3. 03 Choose Apple iPhone 6s Select Apple iPhone 6s from the list of devices. The viewport switches to 375 x 667 pixels, and the mobile User-Agent is applied.
  4. 04 Check rendering Scroll, change orientation, test your forms, then capture an image or video to share.

Models sharing the format of Apple iPhone 6s

These 4 devices share exactly the viewport of 375 x 667 pixels and the 2x density of Apple iPhone 6s. Their CSS rendering is therefore exactly the same: what you validate on one is valid on all others.

Comparison with similar models

The neighboring formats of Apple iPhone 6s are the ones to test right after, as they reveal poorly placed breakpoints.

Comparison of resolutions of Apple iPhone 6s and nearby models
Model CSS Viewport Pixel density Manufacturer resolution
Apple iPhone 6s 375 x 667 2x 750 x 1334
Samsung Galaxy J5 360 x 640 2x 720 x 1280
Samsung Galaxy J7 360 x 640 2x 720 x 1280
Apple iPhone SE 375 x 667 2x 750 x 1334
Apple iPhone 6 375 x 667 2x 750 x 1334
Apple iPhone 7 375 x 667 2x 750 x 1334
Samsung Galaxy A12 360 x 800 2x 720 x 1600

Frequently asked questions about Apple iPhone 6s

What is the CSS viewport resolution of Apple iPhone 6s?

The CSS viewport of Apple iPhone 6s measures 375 pixels wide and 667 pixels high. This is the width to use for defining your media queries, not the manufacturer's resolution.

What is the pixel density of Apple iPhone 6s?

The device pixel ratio of Apple iPhone 6s is 2. Each CSS pixel is thus displayed by 2 physical pixels, requiring you to provide your images in 2x to keep them sharp.

What is the screen resolution of Apple iPhone 6s?

The panel of Apple iPhone 6s displays 750 x 1334 physical pixels. This is the value reported by most analytics tools, while your CSS works on a viewport of 375 x 667 pixels.

Which devices have the same viewport as Apple iPhone 6s?

4 other models share exactly the viewport of 375 x 667 pixels and the 2x density of Apple iPhone 6s: Apple iPhone 6, Apple iPhone 7, Apple iPhone 8, Apple iPhone SE. A rendering validated on one is valid on all others.

How to test my site on Apple iPhone 6s without the device?

Install the Mobile FIRST extension on Chrome, Firefox, or Edge, then select Apple iPhone 6s. Your page displays in a viewport of 375 x 667 pixels with the corresponding mobile User-Agent, in two clicks and for free.

What is the difference with Chrome DevTools' responsive mode?

DevTools resizes the window and applies partial emulation. Mobile FIRST additionally applies the User-Agent of Apple iPhone 6s, touch events, scroll behavior, and the actual appearance of the device, and allows capturing directly usable images and videos.

Can I test a localhost address on Apple iPhone 6s?

Yes. The extension works on any URL open in your browser, including localhost:3000, 127.0.0.1, or a password-protected pre-production environment.

Do you need to buy a Apple iPhone 6s to test your site?

No. The simulation covers the vast majority of development needs at no cost. A final test on a real device is still recommended before critical production deployment, but it's no longer necessary for each iteration.

Which media query to use to target Apple iPhone 6s?

A media query on the exact width targets Apple iPhone 6s: @media only screen and (min-width: 375px). Combine it with the pixel density to precisely target this model and those sharing its format.

Continue testing on another model

All Apple resolutions → All devices →

Other Apple models

Test your site on 77 devices, directly in your browser

Without buying a single phone, without creating an account.

  • 77 devices available upon installation
  • Real viewport, User-Agent, and touch events
  • Also works on localhost and in pre-production
  • Exportable screenshots and videos
Install the extension

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