Iphone 18 Pro Max Expected to Be Apple's Heaviest Model yet

WHO:

9to5Mac - Weibo leaker “Fixed Focus Digital” reported on the iPhone 18 Pro Max.

9to5Mac - Weibo leaker Ice Universe shared information about the iPhone 18 Pro Max.

WHAT:

9to5Mac - The iPhone 18 Pro Max is expected to be roughly 2mm thicker than the iPhone 17 Pro Max, which is 8.75mm thick.

9to5Mac - The iPhone 18 Pro Max’s battery capacity is rumored to be 5,425 mAh for the eSIM model and 5,235 mAh for the physical SIM tray version.

9to5Mac - Regulatory filings suggest battery capacities of 5,567 mAh for the US/eSIM-only model and 5,391 mAh for the China model with a physical SIM tray.

9to5Mac - The iPhone 18 Pro Max is expected to weigh 240g, making it Apple’s heaviest iPhone in years.

9to5Mac - The iPhone 18 Pro Max is expected to have a thickness of 9mm.

WHERE:

9to5Mac - The information about the iPhone 18 Pro Max was reported from Weibo, a Chinese social media platform.

WHEN:

9to5Mac - The iPhone 18 Pro Max is expected to be released in the future, although no specific date is provided.

WHY:

9to5Mac - The increase in weight is attributed to a larger battery and a thicker design.

HOW:

9to5Mac - Apple is expected to use aluminum for the iPhone 18 Pro Max, which may contribute to the weight increase due to internal changes.

(UPDATED July 9, 2026 19:28 UTC)

Reports from Weibo leakers, including “Fixed Focus Digital” and Ice Universe, reveal details about the upcoming iPhone 18 Pro Max. This new model is anticipated to be approximately 2 millimeters thicker than its predecessor, the iPhone 17 Pro Max, and is expected to weigh 240 grams, making it Apple's heaviest iPhone in years. Additionally, the iPhone 18 Pro Max is rumored to feature a battery capacity of 5,425 mAh for the eSIM model, with regulatory filings suggesting even higher capacities for different versions.