A TechInsights teardown found that Apple’s U.S. iPhone 18 Pro Max uses Qualcomm’s Snapdragon X80 5G modem rather than Apple’s in-house C2 modem. The U.S. model, A3473, differs from the smaller iPhone 18 Pro, which uses C2 in the United States, and from Pro Max models sold outside the United States, which also use C2 [digitaltrends.com][androidheadlines.com][macobserver.com][9to5mac.com]. Apple’s U.S. specifications page lists C2 for the iPhone 18 Pro but leaves the Pro Max modem field blank. Specifications for Canada, the United Kingdom, France and India list C2 for both Pro models [digitaltrends.com][androidheadlines.com][9to5mac.com]. The reason for the regional split is unclear [digitaltrends.com][androidheadlines.com]. Highlights: • The iPhone 18 Duo uses Apple’s C2 modem worldwide, extending the company’s in-house modem beyond the two Pro models [9to5mac.com][computerbase.de]. Perspectives: TechInsights identified Qualcomm’s SDR875 RF transceiver alongside the SDX80M modem in the U.S. unit [digitaltrends.com][macobserver.com]. (The Mac Observer) Sources: • Apple’s iPhone 18 Pro Max still can’t quit Qualcomm in the US - digitaltrends.com • iPhone 18 Pro Max Teardown Reconfirms Qualcomm Modem for US Models - androidheadlines.com • TechInsights finds a Qualcomm X80 modem inside the US iPhone 18 Pro Max - macobserver.com • Teardown confirms US iPhone 18 Pro Max lacks Apple's C2 modem - appleinsider.com • iPhone 18 Pro Max still uses a Qualcomm modem in the US, teardown confirms - 9to5mac.com • iPhone 18 Pro Max: US-Modell mit Qualcomm Snapdragon X80-Chip - macerkopf.de • Teardown zeigt: US‑iPhone 18 Pro Max ohne Apples C2‑Mobilfunkchip - apfeltalk.de • US-Markt: Apple steckt den C2 nur ins kleine iPhone 18 Pro - computerbase.de --- 📰 Story aggregated by Kagi News