Ultimate Guide to iPhone Resolutions: https://www.paintcodeapp.com/news/ultimate-guide-to-iphone-resolutions

iPhone 6

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

@media only screen
and (min-device-width : 375px)
and (max-device-width : 667px)
and (orientation : portrait)
and (-webkit-min-device-pixel-ratio : 2)
{ }
Launch images
750 x 1334 (@2x) for portrait
1334 x 750 (@2x) for landscape
App icon
120 x 120

iPhone 6+

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

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