iPhone 18 Pro Max Teardown Confirms U.S. Model Uses Qualcomm X80 Instead of Apple C2

TechInsights tore down the iPhone 18 Pro Max (model A3473) and found a Qualcomm Snapdragon X80 (SDX80M) modem with an SDR875 transceiver instead of Apple's C2. Elsewhere the Pro Max and all iPhone 18 Pro models use the C2; Apple has not explained the U.S. exception.

• Teardown of A3473 found Qualcomm SDX80M modem and SDR875 transceiver
• iPhone 18 Pro and iPhone Duo use C2 worldwide
• Outside the U.S., iPhone 18 Pro Max also runs on C2
• C2 supports mmWave 5G and is 15% more efficient than C1X