Apple’s long-rumored foldable iPhone could redefine smartphone battery performance, according to a new leak claiming the device will feature the largest battery ever used in an iPhone.
A Weibo leaker known as “Fixed Focus Digital” reports that Apple’s first foldable iPhone may include a battery exceeding 5,500mAh, surpassing the current record holder, the iPhone 17 Pro Max, which packs a 5,088mAh cell. If accurate, this would place Apple well ahead of existing foldable competitors in battery capacity.
For comparison, the Google Pixel 10 Pro Fold features a 5,015mAh battery, while Samsung’s Galaxy Z Fold 7 is equipped with a 4,400mAh battery. A foldable iPhone with over 5,500mAh would instantly become the class leader in battery size among foldable smartphones.
This claim aligns with earlier reports from Korean leaker “yeux1122,” who previously stated that Apple was testing batteries in the 5,400–5,800mAh range, citing supply chain sources. Follow-up reports suggested Apple has made battery life a top priority for its foldable device, focusing on higher efficiency and slimmer internal components.
Apple analyst Ming-Chi Kuo has also noted that the foldable iPhone will use high-density battery cells, allowing Apple to deliver extended battery life without compromising on design or thickness.
Beyond battery improvements, the foldable iPhone is rumored to feature a 7.8-inch crease-free inner display, a 5.5-inch cover display, Touch ID, dual rear cameras, the upcoming A20 chip, and Apple’s next-generation C2 modem.
Apple’s first foldable iPhone is expected to launch later this year alongside the iPhone 18 Pro and iPhone 18 Pro Max, marking one of the company’s most significant iPhone design changes in years.
If these battery rumors prove true, Apple may finally solve one of the biggest challenges facing foldable smartphones: all-day battery life.
