Apple has updated its technical specifications pages to clarify which iPhone 18 Pro models include its new C2 cellular modem: the iPhone 18 Pro is listed with a C2 modem worldwide, while the iPhone 18 Pro Max uses the chip in every country except the U.S. As noted by Nicolas Lellouche, Apple changed the wording on the iPhone 18 Pro and iPhone 18 Pro Max tech specs pages to reflect this distinction.
C2 modem geographic breakdown
According to the updated pages, the C2 modem is present on all iPhone 18 Pro units globally. The iPhone 18 Pro Max is equipped with the C2 modem everywhere except in the United States, where the tech specs do not list the chip for that model.
