iPhone 18 Pro Max Leaks: Thicker Design, Heavier Build and Massive Battery Rumoured
The highly anticipated iPhone 18 Pro Max is rumored to debut in September 2026, featuring a substantial battery upgrade that could result in a thicker 9mm design and a heavier 240g build. Leaks from Ice Universe, supported by recent regulatory filings, detail these changes, along with an expected Apple A20 Pro chip, a triple 48MP camera system with variable.
As the tech world inches closer to Apple's annual fall unveiling, speculation around the iPhone 18 Pro Max is reaching a fever pitch. The latest leaks suggest that while the Cupertino giant is planning a significant battery boost for its next-generation flagship, users might have to contend with a slightly thicker and heavier device. Today's date is July 11, 2026, and these pre-launch whispers are giving us an early peek into what to expect from the highly anticipated premium smartphone.
According to reports citing prolific leaker Ice Universe, including one by GSMArena, the iPhone 18 Pro Max's weight and thickness have been revealed. Apparently, it's going to weigh 240g and be 9mm thick. For comparison, note that the iPhone 17 Pro Max weighs 233g and is 8.75mm thick, so the increase isn't really as big as previously rumored. If last year's model feels fine to you, the upcoming one will too. But to put things into perspective, the upcoming Samsung Galaxy Z Fold8 is rumored to weigh about 201g – and that's a folding smartphone. The iPhone 18 Pro Max's chunk is most likely related to its increased battery capacity, which is of course always a welcome improvement to see in a new phone release. A recent certification has revealed that it will have a 5,567 mAh battery for the eSIM-only US market, while the version for regions with a physical SIM card is rumored to feature a 5,391 mAh cell. The iPhone 17 Pro Max's numbers are 5,088 mAh (eSIM) and 4,823 mAh (physical SIM), respectively.
Design and Dimensions: A Subtle Shift
The rumored 9mm thickness and 240g weight for the iPhone 18 Pro Max represent a modest increase over the current iPhone 17 Pro Max, which measures 8.75mm thick and weighs 233g. While some earlier rumors had suggested a more substantial 2mm increase in thickness for the iPhone 18 Pro, the latest figures from Ice Universe indicate a less dramatic change for the Pro Max variant. This slight increase is primarily attributed to accommodating a larger battery. Another contributing factor to the added heft could be Apple's rumored adoption of a new stainless steel vapor chamber cooling system for the iPhone 18 Pro series, designed to manage thermals more efficiently.
Powering Up: Significant Battery Boost
The most notable upgrade, as per recent regulatory filings and leaks, is the substantial increase in battery capacity. The eSIM-only variant of the iPhone 18 Pro Max, reportedly destined for the US market, is expected to pack a 5,567 mAh battery, while the version for regions retaining a physical SIM card is rumored to feature a 5,391 mAh cell. This marks a considerable jump from the iPhone 17 Pro Max's 5,088 mAh (eSIM) and 4,823 mAh (physical SIM) batteries. This enhancement aims to deliver noticeably better endurance, addressing a common user demand for extended battery life on Apple's flagship device.
Under the Hood: Expected Performance and Features
While specific details on the entire spec sheet remain under wraps, the iPhone 18 Pro Max is anticipated to be powered by the next-generation Apple A20 Pro chip, likely built on an advanced process for improved performance and efficiency. Display technology is expected to remain a 6.9-inch Super Retina XDR OLED panel with ProMotion technology, similar to its predecessor. Camera upgrades are also rumored, with previous leaks hinting at a triple 48-megapixel rear camera system, possibly featuring a variable aperture for enhanced photographic capabilities. Furthermore, a smaller Dynamic Island cutout has been speculated, with some Face ID components potentially being hidden under the display.
Launch and Availability
Apple traditionally unveils its new iPhone lineup in September, and the iPhone 18 Pro Max is expected to follow this pattern, with an announcement rumored for September 2026. Pricing details for the iPhone 18 Pro Max are yet to be announced, but analysts suggest a potential price increase over the iPhone 17 Pro Max. Information regarding India-specific pricing, colour options, and launch offers will likely be revealed closer to the official launch event.
Disclaimer: AI tools assisted in compiling the foundational data and research for this report. The final content was reviewed, edited and verified by human editors at LatestLY.
(The above story first appeared on LatestLY on Jul 11, 2026 10:37 AM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).
