Are iPhone 18 Pro Max cases compatible with iPhone 17 Pro Max?

Unless someone has actually tried fitting the two cases on both models, it would be unwise to assume they are interchangeable. Even minor differences in dimensions, camera placement, button positions or the Camera Control cutout can affect compatibility.

Here are a few practical suggestions:

1. If you have already purchased the iPhone 18 Pro Max case: Try fitting it on your iPhone 17 Pro Max and see whether it fits properly. Check the camera cutout, buttons, ports and overall alignment.
2. If you are planning to buy it from an Apple Store: Ask the staff to let you try fitting the case on your iPhone 17 Pro Max before purchasing it.
3. If you intend to order it online: You may have to wait until you can physically compare the two models or find someone who has both devices and can test the fit.

Ultimately, I understand that you love the Crisp Blue colour, but buying a case designed for a different iPhone generation without confirming compatibility is a bit of a gamble.

Your question, however, sounds more like an academic curiosity about cross-generation case compatibility than an actual purchasing dilemma. After all, you are not going to cancel your iPhone 18 Pro Max order simply because its case doesn't fit your existing iPhone 17 Pro Max!

One important distinction: Even if the two cases appear to fit, that does not necessarily mean they are officially compatible or provide the intended protection.

Hi, the camera bump is slightly taller on the iPhone 18 Pro Max. Button placement is identical. However, it’s negligible. Many third party manufacturers are labeling their new cases as compatible with both models. My suggestion is buy the case from a merchant that had a reasonable return policy and try the case. If you’re not satisfied, return the product for a refund, exchange or store credit.

The camera bump on the iPhone 18 Pro Max is slightly larger/taller than on the iPhone 17 Pro Max.