iPhone 6 and 6 Plus Responsive Breakpoints

iPhone 6 and 6 Plus Media Queries

iPhone 6

Landscape

@media only screen 
    and (min-device-width : 375px) // or 213.4375em or 3in or 9cm
    and (max-device-width : 667px) // or 41.6875em
    and (width : 667px) // or 41.6875em
    and (height : 375px) // or 23.4375em
    and (orientation : landscape) 
    and (color : 8)
    and (device-aspect-ratio : 375/667)
    and (aspect-ratio : 667/375)
    and (device-pixel-ratio : 2)
    and (-webkit-min-device-pixel-ratio : 2)
{ }

Portrait

@media only screen 
    and (min-device-width : 375px) // or 213.4375em
    and (max-device-width : 667px) // or 41.6875em
    and (width : 375px) // or 23.4375em
    and (height : 559px) // or 34.9375em
    and (orientation : portrait) 
    and (color : 8)
    and (device-aspect-ratio : 375/667)
    and (aspect-ratio : 375/559)
    and (device-pixel-ratio : 2)
    and (-webkit-min-device-pixel-ratio : 2)
{ }

if you prefer you can use (device-width : 375px) and (device-height: 559px) in place of the min- and max- settings.

It is not necessary to use all of these settings, and these are not all the possible settings. These are just the majority of possible options so you can pick and choose whichever ones meet your needs.

User Agent

tested with my iPhone 6 (model MG6G2LL/A) with iOS 9.0 (13A4305g)

# Safari
Mozilla/5.0 (iPhone; CPU iPhone OS 9_0 like Mac OS X) AppleWebKit/601.1.39 (KHTML, like Gecko) Version/9.0 Mobile/13A4305g Safari 601.1
# Google Chrome
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.53.11 (KHTML, like Gecko) Version/5.1.3 Safari/534.53.10 (000102)
# Mercury
Mozilla/5.0 (iPhone; CPU iPhone OS 7_0_4 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11B554a Safari/9537.53

Launch images
- 750 x 1334 (@2x) for portrait
- 1334 x 750 (@2x) for landscape
App icon
- 120 x 120

iPhone 6+

Landscape

@media only screen 
    and (min-device-width : 414px) 
    and (max-device-width : 736px) 
    and (orientation : landscape) 
    and (-webkit-min-device-pixel-ratio : 3) 
{ }

Portrait

@media only screen 
    and (min-device-width : 414px) 
    and (max-device-width : 736px)
    and (device-width : 414px)
    and (device-height : 736px)
    and (orientation : portrait) 
    and (-webkit-min-device-pixel-ratio : 3) 
    and (-webkit-device-pixel-ratio : 3)
{ }

Launch images
- 1242 x 2208 (@3x) for portrait
- 2208 x 1242 (@3x) for landscape
App icon
- 180 x 180

iPhone 6 and 6+

@media only screen 
    and (max-device-width: 640px), 
    only screen and (max-device-width: 667px), 
    only screen and (max-width: 480px)
{ }

Predicted

According to the Apple website the iPhone 6 Plus will have 401 pixels-per-inch and be 1920 x 1080. The smaller version of the iPhone 6 will be 1334 x 750 with 326 PPI.

So, assuming that information is correct, we can write a media query for the iPhone 6:

@media screen 
    and (min-device-width : 1080px) 
    and (max-device-width : 1920px) 
    and (min-resolution: 401dpi) 
    and (device-aspect-ratio:16/9) 
{ }

@media screen 
    and (min-device-width : 750px) 
    and (max-device-width : 1334px) 
    and (min-resolution: 326dpi) 
{ }

Note that device-aspect-ratio will be deprecated in http://dev.w3.org/csswg/mediaqueries-4/ and replaced with aspect-ratio

Min-width and max-width may be something like 1704 x 960.

Apple Watch (speculative)

Specs on the Watch are still a bit speculative since (as far as I'm aware) there has been no official spec sheet yet. But Apple did mention in this press release that the Watch will be available in two sizes.. 38mm and 42mm.

Further assuming.. that those sizes refer to the screen size rather than the overall size of the Watch face these media queries should work.. And I'm sure you could give or take a few millimeters to cover either scenario without sacrificing any unwanted targeting because..

@media (!small) and (damn-small), (omfg) { }

@media 
    (max-device-width:42mm) 
    and (min-device-width:38mm) 
{ }

It's worth noting that Media Queries Level 4 from W3C currently only available as a first public draft, once available for use will bring with it a lot of new features designed with smaller wearable devices like this in mind.

What are the device-width css viewport sizes of the iPhone6 and iPhone 6 Plus

(css) device-width of iPhone 6 is 375px, of iPhone 6 Plus is 414px. Note that iPhone 6 Plus report window.devicePixelRatio = 3 (while not truly at 3 DPR)

Update 1: just to clarify, I believe this is NOT a prediction, but actually tested. See more detailed and reputable reference. If in doubt, you can wait for device to be out.

Update 2: for users with Display Zoom enabled on iPhone 6, css viewport in Mobile Safari fallback to 320px (like iPhone 5); for iPhone 6 Plus, it fallback to 375px (like iPhone 6).

breakpoints in Iphone 6+

Well, first you have max-device-width but it should be max-width since
device-width is deprecated

Also, don't use the orientation since it is not working (yet).

Your CSS would look like:

@media only screen and (max-width : 414px) {

    .header-box {
    background-color: #163A4E;
    height: 550px;
    margin-bottom: 0px;
    padding: 0px;
    }

    .header-text h1 {
        color:red;
    }

    .header-text h2 {
        color:green;
    }
}

/* Iphone 6 + and Nexus 6*/
@media only screen and (min-width : 415px) and (max-width : 736px) { 
      .header-text h1 {
        color:yellow;
    }

    .header-text h2 {
        color:pink;
    }

}

How to differentiate Iphone x media query to Iphone 6,7,8 plus?

Because these not correct probably.

You are using -width on one and -height on the other so these media queries are not clamped exclusively.

I'm assuming the iPhone X is the biggest device but you are applying the rules from width 375px upwards... that's going to include ones that have width 414px and upwards.

It seems like this should cover all the iPhone scenarios:

/* ----------- iPhone 6, 6S, 7 and 8 ----------- */

/* Portrait and Landscape */
@media only screen 
  and (min-device-width: 375px) 
  and (max-device-width: 667px) 
  and (-webkit-min-device-pixel-ratio: 2) { 

}

/* Portrait */
@media only screen 
  and (min-device-width: 375px) 
  and (max-device-width: 667px) 
  and (-webkit-min-device-pixel-ratio: 2)
  and (orientation: portrait) { 

}

/* Landscape */
@media only screen 
  and (min-device-width: 375px) 
  and (max-device-width: 667px) 
  and (-webkit-min-device-pixel-ratio: 2)
  and (orientation: landscape) { 

}

/* ----------- iPhone 6+, 7+ and 8+ ----------- */

/* Portrait and Landscape */
@media only screen 
  and (min-device-width: 414px) 
  and (max-device-width: 736px) 
  and (-webkit-min-device-pixel-ratio: 3) { 

}

/* Portrait */
@media only screen 
  and (min-device-width: 414px) 
  and (max-device-width: 736px) 
  and (-webkit-min-device-pixel-ratio: 3)
  and (orientation: portrait) { 

}

/* Landscape */
@media only screen 
  and (min-device-width: 414px) 
  and (max-device-width: 736px) 
  and (-webkit-min-device-pixel-ratio: 3)
  and (orientation: landscape) { 

}

/* ----------- iPhone X ----------- */

/* Portrait and Landscape */
@media only screen 
  and (min-device-width: 375px) 
  and (max-device-width: 812px) 
  and (-webkit-min-device-pixel-ratio: 3) { 

}

/* Portrait */
@media only screen 
  and (min-device-width: 375px) 
  and (max-device-width: 812px) 
  and (-webkit-min-device-pixel-ratio: 3)
  and (orientation: portrait) { 

}

/* Landscape */
@media only screen 
  and (min-device-width: 375px) 
  and (max-device-width: 812px) 
  and (-webkit-min-device-pixel-ratio: 3)
  and (orientation: landscape) { 

}

You can get even more devices at:

Media Queries for Standard Devices | CSS-Tricks

Platform Mode

Also, don't forget that Ionic lets you use the ios selector in the sass to restrict the devices to ios mode:

Overriding Mode Styles - Platform Styles - Ionic Documentation

So something like:

.ios ion-badge {
  text-transform: uppercase;
}

Will restyle everything with the mode="ios" set, which is done by default on ios devices, although it can be manually set to other values, so only use it if that's appropriate for your project.

CSS media query is not properly identifying iphone 6

I have an iPhone5, so I can't test it explicitly on my phone, but I did see these links for other Stack problems. Could be helpful to you.

http://qnimate.com/overview-of-css3-media-queries/#List_of_mostly_used_media_queries

http://www.paintcodeapp.com/news/ultimate-guide-to-iphone-resolutions