A teardown of Apple's iPhone 18 Pro Max has revealed an unexpected difference in the US version of the device: instead of Apple's own C2 modem, the phone reportedly uses a Qualcomm cellular modem.
Apple heavily promoted the C2 modem when it introduced the iPhone 18 Pro lineup, making the discovery particularly notable. However, the US-market iPhone 18 Pro Max appears to be an exception.
According to a teardown conducted by TechInsights, the iPhone 18 Pro Max contains many of the components expected in Apple's latest flagship, including the A20 Pro chip and Apple's N1 wireless module. The cellular connectivity system, however, is powered by a Qualcomm Snapdragon SDX80M 5G modem rather than the C2.
TechInsights suggests that the finding could point to regional hardware differences or indicate that Apple is using more than one modem configuration across the iPhone 18 family.
The phone's RF board also contains components supplied by Skyworks, Broadcom, Qorvo, Texas Instruments, and NXP, including an NFC controller. Apple's N1 Wireless Combo Module is responsible for wireless connectivity such as Wi-Fi.
A Very Specific Exception
The Qualcomm modem discovery is particularly interesting given Apple's emphasis on the C2 modem in its iPhone 18 Pro announcement.
However, Apple's wording in its press materials leaves some room for interpretation. The company states that the C2 is included in the iPhone 18 Pro, but that wording doesn't necessarily make it clear whether every model in the Pro family uses the same modem.
Apple does not mention Qualcomm's modem in its announcement, nor does it suggest that the iPhone 18 Pro Max uses different cellular hardware. At the same time, the company's wording does not explicitly state that the C2 modem is present specifically in the Pro Max.
The teardown therefore provides an early indication that the US iPhone 18 Pro Max may be a specific regional exception, although Apple's exact modem strategy across different iPhone 18 models and markets remains unclear.