Overview
- Regulatory screenshots and filings reported by multiple outlets show the Pro Max battery rising to roughly 5,391 mAh for China and about 5,567 mAh for U.S. models, a clear increase over the iPhone 17 Pro Max.
- Several Weibo leakers have claimed the Pro models will be measurably thicker and heavier, with one tip saying the Pro Max could reach about 9 mm depth and roughly 240 grams, though Apple has not confirmed dimensions or weight.
- Sources attribute the size change to larger batteries and new internal hardware, including reports of a stainless‑steel vapor chamber for cooling and a larger main camera module.
- Wider batteries and upgraded cooling are tied in coverage to a next‑generation A20/A20 Pro chip and expanded on‑device AI, which would raise power and thermal needs and explain the internal redesigns.
- All specifics beyond the battery filings remain unconfirmed and come from leakers and supply‑chain reports, and analysts warn the hardware shifts could affect pricing, availability, device feel in hand, and finish durability.