Apple to split iPhone 18 modems, using custom C2 chips outside U.S.

Leaked documents from a Tata Electronics data breach indicate Apple may adopt a dual-sourcing modem strategy for the iPhone 18 Pro and Pro Max.

U.S. models will continue using Qualcomm modems to maintain mmWave compatibility. International versions will transition to Apple’s in-house C2 modem to reduce reliance on external suppliers.

The iPhone 18 Pro will also feature an A20 Pro chip with advanced packaging for improved thermal management. Additional technical upgrades include potential camera enhancements.