IPhone 18 Pro Max Stays Thin While Apple Focuses on Foldable

The real story buried in this leak isn’t the thickness number. It’s the reason given for why the iPhone 18 Pro Max apparently isn’t changing much: Apple is reportedly concentrating its hardware engineering on the foldable iPhone, leaving the Pro lineup to coast on last year’s chassis.

Ice Universe, the Weibo leaker behind this claim, contradicted their own March report in the process. Three months ago they said the 18 Pro Max would be slightly thicker than its predecessor. Now the number is flat at 8.75mm. That kind of revision inside a single product cycle is a reminder that pre-release dimensions from anonymous Chinese sources are educated guesses, not measurements.

The weight question is more interesting than the thickness one. A separate leaker, Instant Digital, has the 18 Pro Max tipping past 240 grams, which would make it heavier than any iPhone since the 14 Pro Max. A slightly larger battery (reportedly 5,100 to 5,200 mAh, up from 5,088 mAh) could account for some of that, even if the outer shell stays the same size.

What the Pro Max is still expected to gain

The feature list for the 18 Pro and Pro Max, despite the reportedly modest physical changes, still includes some meaningful hardware updates:

• C2 modem, Apple’s second-generation in-house cellular chip
• Variable aperture on the main camera
• A smaller Dynamic Island
• Simplified Camera Control button

The foldable angle is worth taking seriously as context. Apple tends to concentrate engineering resources intensely on new form factors before launch, and a foldable iPhone would represent the largest hardware departure the company has attempted since the original iPad. If the Pro Max is genuinely getting less attention this cycle, that would be consistent with how Apple has historically managed parallel development tracks.

A mid-September reveal is expected for both devices, which gives leakers roughly three months to contradict themselves at least once more.