OS Details

Apple iPhone 15 will be launched in September 2023.
Apple iPhone 15 have iOS 17

Screen Dimensions

Apple iPhone 15 screen size is 6.1 inch with ~ 86.4% body ratio of actual device size. Physical dimensions for Apple iPhone 15 device is 5.81 x 2.82 x 0.31 INCH or ( 147.6 x 71.6 x 7.8 MM).

Displaying of Units are in this order "Height x Width x Thickness"

Screen Pixel Density and CSS Pixel Ratio

"Pixel" is smallest unit/element of any display.

The total number of pixels that fit into an inch is referred to as "Screen Density" or "Pixel Density" and it measured as "Pixels Per Inch".
Pixel Desnsity have limits to display Pixels Per Inch depends on different screen sizes. When number of pixels per inch increases than it's screen-size limit, the Display resolution will increase but actual device width/height in pixels remain same. Actual device pixels are known as Device Independent Pixels or CSS Pixel Ratio.

Apple iPhone 15 resolution is 1179 x 2556 ^PX with ~ 461 pixel desnsity.
Apple iPhone 15 viewport size is 393 x 852 ^PX with ~ 154 actual pixel density, which means it have 3 xxhdpi display pixel density.

Screen Resolution and Viewport

The sum of pixels which are displaying on a device is called as "Screen Resolution". and sum of actual pixels of any device is reffered to as "Viewport".

Apple iPhone 15 have 6.1" physical screen size and its resolution is about 1179 x 2556 Pixels with approximately 461 PPI pixel density. Apple iPhone 15 has viewport size 393 x 852 Pixels and its pixel ratio is about 3.

For better understanding screen actual sizes, viewport sizes, display resolution and about their density click here.

CSS Media Queries

Apple iPhone 15 Media Queries (In terms of Mobile only)

@media only screen and (min-width: 393px) and (max-width: 767px) { /* Your Styles... */ }

Apple iPhone 15 Min-Width Media Queries

@media only screen and (min-width: 393px) { /* Your Styles... */ }

Apple iPhone 15 Min-Height Media Queries

@media only screen and (min-height: 852px) { /* Your Styles... */ }

Apple iPhone 15 Landscape Media Queries

@media only screen and (min-width: 852px) and (orientation: landscape) { /* Your Styles... */ }

Apple iPhone 15 Portrait Media Queries

@media only screen and (min-width: 393px) and (orientation: portrait) { /* Your Styles... */ }

Apple iPhone 15 Retina Media Queries

@media
  only screen and (-webkit-min-device-pixel-ratio: 3),
  only screen and (   min--moz-device-pixel-ratio: 3),
  only screen and (     -o-min-device-pixel-ratio: 3/1),
  only screen and (        min-device-pixel-ratio: 3),
  only screen and (                min-resolution: 461dpi),
  only screen and (                min-resolution: 3dppx) { 
    /* Retina styles here */
}
                                

Retina is actually based upon device pixel ratio. Devices mostly have 2x or 3x display so you can use general retina media queries to display high resolution content on all kind of devices. Retina 2x and Retina 3x media queries given below:

Retina 2x Media Query

@media
  only screen and (-webkit-min-device-pixel-ratio: 2),
  only screen and (   min--moz-device-pixel-ratio: 2),
  only screen and (     -o-min-device-pixel-ratio: 2/1),
  only screen and (        min-device-pixel-ratio: 2),
  only screen and (                min-resolution: 192dpi),
  only screen and (                min-resolution: 2dppx) { 
    /* Retina styles here */
}
                                

Retina 3x Media Query

@media
  only screen and (-webkit-min-device-pixel-ratio: 3),
  only screen and (   min--moz-device-pixel-ratio: 3),
  only screen and (     -o-min-device-pixel-ratio: 3/1),
  only screen and (        min-device-pixel-ratio: 3),
  only screen and (                min-resolution: 384dpi),
  only screen and (                min-resolution: 3dppx) { 
    /* Retina styles here */
}
                                

Apple iPhone 15 Specifications

• Launch Date September 2023
• iOS 17.0
• Physical Screen Size 6.1 INCH
• Resolution 1179 x 2556 PX
• Viewport Size 393 x 852 PX
• Pixel Density 461 PPI
• Device-Independent Pixels 154 PPI
• Pixel Ratio 3 xxhdpi
• Width 1179 PX
• Height 2556 PX
• Device Width 393 PX
• Device Height 852 PX
• Dimensions 147.6 x 71.6 x 7.8 mm (5.81 x 2.82 x 0.31 in)
• Weight 171 g - 6.03 oz