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Tech & Innovation·September 13, 2026·1 min read

Spec sheets show Apple's C2 modem is used in iPhone Duo and 18 Pro worldwide, and in iPhone 18 Pro Max everywhere except the US, where it likely uses Qualcomm

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Apple running its C2 modem globally but keeping Qualcomm in the US 18 Pro Max hints at a staged, market-specific risk rollout rather than a clean break. If you build on iOS networking features or carrier partnerships, assume modem behavior will fragment by region and generation for several cycles.