Apple's rumored switch to Apple-designed modems for the entire iPhone 18 lineup promises both performance improvements and a significant privacy benefit. The transition would end reliance on Qualcomm chips, bringing speed and efficiency gains alongside a less-discussed feature that enhances user privacy.

iOS 26.3 introduced a Limit Precise Location setting that restricts location data shared with mobile networks, preventing carriers from seeing exact locations and instead limiting them to neighborhood-level information. Currently, this privacy feature only works on devices with Apple's C1 or C1X modem, excluding Qualcomm-powered models like the iPhone 17 Pro.

The expansion of Apple modems to the iPhone 18 Pro and iPhone Fold would make this privacy option available across the entire lineup. While the feature doesn't affect signal quality or emergency services, carrier adoption remains limited, with only a few providers worldwide supporting the location data restriction. Apple's rumored C2 modem is expected to match Qualcomm's newest offerings while maintaining these privacy benefits.