Is the iPhone 17 Pro Max Silicone Case with MagSafe compatible with the iPhone 18 Pro Max?

Is the iPhone 17 Pro Max Silicone Case with MagSafe compatible with the iPhone18 Pro Max?


[Re-Titled by Moderator]

Original Title: iPhone Case Compatibility

iPhone 17 Pro Max, iOS 27

Posted on Sep 18, 2026 2:52 AM

Reply
Question marked as Top-ranking reply

Posted on Sep 18, 2026 5:57 AM

Officially, no. Not compatible.


The iPhone 18 Pro camera plateau is reportedly a tenth of a millimeter higher, but dimensions are otherwise the same.


Per John Gruber: ”I asked Apple if they’re stating that 18 Pro models are case-compatible with the iPhone 17 Pro, and they are not, because the 18 Pro camera plateaus are slightly thicker this year. I measured with a digital caliper and the difference is one-tenth of a millimeter: 11.5mm vs. 11.4mm. So Apple has raised the plateau guard lip on its own 18 Pro cases by one-tenth of a millimeter.”

2 replies
Question marked as Top-ranking reply

Sep 18, 2026 5:57 AM in response to cherry-tree

Officially, no. Not compatible.


The iPhone 18 Pro camera plateau is reportedly a tenth of a millimeter higher, but dimensions are otherwise the same.


Per John Gruber: ”I asked Apple if they’re stating that 18 Pro models are case-compatible with the iPhone 17 Pro, and they are not, because the 18 Pro camera plateaus are slightly thicker this year. I measured with a digital caliper and the difference is one-tenth of a millimeter: 11.5mm vs. 11.4mm. So Apple has raised the plateau guard lip on its own 18 Pro cases by one-tenth of a millimeter.”

Sep 18, 2026 5:32 AM in response to cherry-tree

While the iPhone 17 Max and iPhone 18 Max have the same overall physical dimensions, Apple differentiates its own cases for these two models of iPhone. Cases designed for either model do not state compatibility with the other.


This differentiation might reasonably suggest that these cases are not interchangeable between the iPhone 17/18 models due to other less obvious physical differences between these iPhones - such as, perhaps, changes to the camera plateau that incorporate the camera system.


As such, you would be wise to assume that cases designed for the iPhone 17 Max are incompatible with the new iPhone 18 Max.

Is the iPhone 17 Pro Max Silicone Case with MagSafe compatible with the iPhone 18 Pro Max?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.