Overview
- This week multiple tech outlets published the same battery figures that trace back to a now‑deleted X/Twitter post and reposted Weibo images, but the original source and images remain unconfirmed.
- The leaks claim eSIM‑only iPhone 18 Pro Max units would use a 5,425 mAh cell while models that keep a physical SIM tray would use 5,235 mAh, a 190 mAh difference attributed to space freed by removing the SIM mechanism.
- If true, the larger 5,425 mAh number would make the Pro Max one of the biggest non‑folding iPhone batteries and exceed the Galaxy S26 Ultra's reported 5,000 mAh on raw capacity alone.
- Reporters and analysts note battery capacity is only part of real‑world runtime and say expected efficiency gains from Apple’s A20/A20 Pro chip, LTPO+ displays and modem improvements could amplify any advantage.
- Coverage emphasizes the claim is still a rumor tied to social posts and possible supplier leaks, and Apple has not confirmed the figures ahead of the company's expected September product announcement.