EU regulatory disclosures for the iPhone 18 Pro and Pro Max have detailed the exact battery capacities, highlighting notable increases over last year’s models. Meanwhile, US buyers receive a version of the iPhone 18 Pro Max with a Qualcomm modem, differing from other markets.
- iPhone 18 Pro and Pro Max batteries increased significantly
- EU models feature physical SIMs; US models use eSIM and different modems
- Qualcomm modem appears exclusively in US iPhone 18 Pro Max
What happened
European Union regulations require detailed energy labeling for mobile devices, revealing the exact battery capacities in the iPhone 18 Pro and Pro Max. The iPhone 18 Pro now includes a 4,056 mAh battery, a modest increase of 1.45% over the previous generation. The Pro Max delivers a more substantial boost to 5,391 mAh, up 11.8%, representing the biggest battery life upgrade Apple has ever made to an iPhone.
Additionally, while Apple traditionally does not disclose full hardware specs publicly at launch, code analysis of iOS 27 has uncovered differences in the modem hardware used in various regions. Notably, the US iPhone 18 Pro Max models employ Qualcomm’s Snapdragon X85 modem, while all other regions, including the EU, use Apple’s own C2 modem. These distinctions coincide with the presence of physical SIM slots in EU models versus eSIM-only versions sold in the US.
Why it matters
Battery capacity is a key factor influencing user experience, particularly for power users relying on prolonged video playback or intensive tasks. The significant capacity gain in the iPhone 18 Pro Max addresses long-standing battery life concerns and aligns with Apple’s claims of up to 45 hours of video playback on a single charge. Even the smaller 1.45% upgrade in the iPhone 18 Pro helps maintain competitiveness in a market where incremental improvements are vital.
The modem variation between US and global models may affect network compatibility and performance nuances, although Apple claims no notable speed differences between the Qualcomm Snapdragon X85 and its custom C2 chip. The retention of Qualcomm’s modem in US models potentially reflects contractual or regulatory considerations and illustrates Apple’s strategic balancing between in-house components and third-party suppliers.
What to watch next
As the iPhone 18 Pro and Pro Max become available starting September 18, real-world battery performance tests and network behavior comparisons will be closely observed. Reviewers and consumers will assess if these hardware changes translate into meaningful improvements in daily use and under varied operator conditions, especially in the US where the modem differs.
Looking ahead, Apple’s plans for the broader iPhone 18 lineup, including the standard iPhone expected in March alongside other models like the iPhone 18e and iPhone Air 2, will be of interest to watch for further battery and connectivity innovations. Meanwhile, the rumored foldable Apple iPhone Duo may introduce new design and technology benchmarks in the near future.