iPhone 18 Pro Max still uses a Qualcomm modem in the US, teardown confirms

Apple’s continued use of Qualcomm’s Snapdragon X80 modem in the U.S. iPhone 18 Pro Max shows that its transition to in-house cellular technology is still incomplete, despite Apple’s progress with the C2 modem in other regions and models. For CIOs and technology leaders, this is a reminder that large platform vendors often run hybrid architectures longer than expected due to contractual, supply-chain, and performance constraints, which can affect enterprise standardization, support planning, and device lifecycle decisions. The broader strategic signal is that modem, connectivity, and regional SKU differences remain important procurement and fleet-management considerations for organizations deploying iPhone at scale.