To this day, the heaviest iPhone Apple has ever released remains the iPhone 14 Pro Max, which tipped the scales at 8.47 ounces (240 grams). After that 2022 model, Apple managed to trim down the following Pro Max versions, making them thinner and lighter. Yet, over time, the Pro Max lineup has gradually crept back up in weight.
The current iPhone 17 Pro Max weighs 233 grams and measures 8.7 mm thick—an unmistakable contrast to the ultra-slim iPhone Air at just 5.5 mm. Despite Apple’s ongoing efforts to create thinner devices, the Pro Max seems destined to keep its heavyweight reputation.
A Heavier Future for the Pro Max
According to Weibo leaker Instant Digital, the upcoming iPhone 18 Pro Max could once again cross the 240-gram mark. The leaker also claims the 2026 Pro Max model will be thicker than the current generation. But that isn’t necessarily bad news.
Why a Thicker iPhone Might Be Better
As Apple continues to push performance boundaries with more powerful chips—reportedly introducing the new A20 Pro built on a 2nm manufacturing process—the hardware demands more efficient heat management and larger batteries. Though Instant Digital didn’t specify Apple’s reasons for the design changes, other reports suggest the company is developing a stainless steel vapor chamber for improved thermal performance.
A slightly thicker build could provide the space needed for this new cooling system and a larger battery, giving users better endurance without sacrificing performance.
What to Expect Next
Early rumors point to a smaller Dynamic Island, under-display Face ID, and a variable aperture main camera on the iPhone 18 Pro Max. If Apple does increase thickness and weight, it might not just be for aesthetics—it could be a strategic step toward performance gains and improved sustainability of the device.
As always, new rumors and reports will continue to surface as Apple’s next-generation iPhone takes shape, and we’ll update you as more details become available.
