iPhone 14 Pro (and 14 Pro Max) Native Screen Size

Question

Clem23 OP

Created Sep ’22

Replies 4

Boosts 3

Views 6k

Participants 3

Hello Guys,

When using Xcode 14 (RC or 14.0.1) the Native Screen size differ from simulator to real device for the brand new iPhone 14 Pro and Pro Max causing my apps some bugs (because using the real device screen size for some computations).

Just after app launch:

log.info("Canevas Size: \(UIScreen.main.bounds.width) x \(UIScreen.main.bounds.height)")

log.info("Native Size: \(UIScreen.main.nativeBounds.width) x \(UIScreen.main.nativeBounds.height)")

Result

iPhone 14 Pro (Simulator Output):

Canevas Size: 393.0 x 852.0
Native Size: 1179.0 x 2556.0

iPhone 14 Pro (Real Device):

Canevas Screen Size: 390.0 x 844.0
Native Screen Size: 1170.0 x 2532.0

Does anyone reproduce that? I do not own myself a real iPhone 14 Pro and can't investigate any further sadly.
Do you know how I can get the real screensize in pixels?

Answered by Clem23 in 730134022

Thanks to geoffhackworth (https://twitter.com/geoffhackworth) it seems that Xcode-14 TestFlight builds are treated as Xcode 13 builds and are scaled to the 12/13 Pro layout.

So the issue will only occurs for TestFlight build.

Thank you geoffhackworth (https://twitter.com/geoffhackworth)

More about this here: https://twitter.com/geoffhackworth/status/1573652281848905728

Boost

Answer 1

robnotyou OP

Sep ’22

Some useful information here:
https://useyourloaf.com/blog/iphone-14-screen-sizes/

0

Answer 2

darkpaw OP

Sep ’22

I think you're getting the numbers mixed up.

The Simulator reports these numbers:

390x844 @ 3x = 1170 x 2532 pixel resolution at 460ppi = iPhone 12, 13, 14, and 12 Pro, 13 Pro
393x852 @ 3x = 1179 x 2556-pixel resolution at 460ppi = iPhone 14 Pro

My real iPhone 14 Pro device correctly reports the second line of numbers.

I don't think there is an error here.

0

Answer 3

Clem23 OP

Sep ’22

Perhaps only on some specific conditions? Zoomed display seems to produce a 320 x 693 screen size. Perhaps there is another setting that can make it switch to 390x844.

1

Answer 4

Clem23 OP

Sep ’22

Accepted Answer

Thanks to geoffhackworth (https://twitter.com/geoffhackworth) it seems that Xcode-14 TestFlight builds are treated as Xcode 13 builds and are scaled to the 12/13 Pro layout.

So the issue will only occurs for TestFlight build.

Thank you geoffhackworth (https://twitter.com/geoffhackworth)

More about this here: https://twitter.com/geoffhackworth/status/1573652281848905728

2