User level: Level 1 (4 points)i have an iphone 13 and macbook air m5 both updated to os 27
iphone mirroring resize doesnt work it only scales up and down in size
the aspect ratio doesnt change even for apple's native apps
Posted on Sep 20, 2026 12:19 AM
User level: Level 10 (123,805 points)Sep 20, 2026 5:38 AM in response to JayJr10
According to Apple’s current iOS 27 User Guide, this is expected behaviour with an iPhone 13.
Apple states that window resizing in iPhone Mirroring requires iOS 27 or later, but is not supported on iPhone 11, 12, or 13 (any model), or iPhone SE (2nd or 3rd generation). On these unsupported models, dragging the resize cursor scales the window larger or smaller rather than changing its aspect ratio or window dimensions. (Apple Support)
This explains why your iPhone 13 only scales when you drag the edge of the iPhone Mirroring window, including when using Apple’s own apps. It is not an indication that your MacBook Air M5 or iPhone 13 is malfunctioning.
Apple’s documentation on controlling an iPhone from a Mac is here:
Control your iPhone from your Mac — Apple Support
I would not say that the aspect ratio "doesn't change" as the primary technical description. Apple's wording is more precise: the window is scaled rather than resized. That directly matches what you are observing.
Originally posted at discussions.apple.com/thread/256361017