Apple’s upcoming iPhone 18 Pro Max is anticipated to be significantly thicker and heavier than the iPhone 17 Pro Max, likely due to a larger battery. The new model is expected to measure around 9mm in thickness and weigh approximately 240 grams, marking an increase of 0.25mm and 7 grams from its predecessor. Regulatory filings suggest the device will feature a 5,391mAh battery in China and a 5,567mAh battery in the U.S., almost 500mAh more than the previous model. The increased dimensions are attributed to the larger battery and the introduction of a new stainless steel vapor chamber. This development aligns with earlier predictions that the iPhone 18 Pro Max could become the heaviest iPhone to date, surpassing even the iPhone 14 Pro Max. Apple’s recent material choices, such as the shift from titanium to aluminum, have influenced the weight of its devices, with the iPhone 18 Pro and Pro Max set to debut alongside Apple’s first foldable iPhone this September.
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