iPhone 18 Pro Max in U.S. Has Qualcomm's Snapdragon X80 Modem
TechInsights has published an iPhone 18 Pro Max teardown that confirms the U.S. version of the device is equipped with Qualcomm's Snapdragon X80 modem. The device's modem firmware had already pointed towards the Snapdragon X80 modem. The smaller iPhone 18 Pro and the iPhone Duo use Apple's custom-designed C2 modem worldwide, and the iPhone 18 Pro Max uses the C2 modem in every other country, so the U.S. version of the iPhone 18 Pro Max having a Qualcomm modem is unique. iPhone 17 Pro and iPhone
iPhone 18 Pro Max in U.S. Has Qualcomm's Snapdragon X80 Modem
TechInsights has published an iPhone 18 Pro Max teardown that confirms the U.S. version of the device is equipped with Qualcomm's Snapdragon X80 modem.
The device's modem firmware had already pointed towards the Snapdragon X80 modem.
The smaller iPhone 18 Pro and the iPhone Duo use Apple's custom-designed C2 modem worldwide, and the iPhone 18 Pro Max uses the C2 modem in every other country, so the U.S. version of the iPhone 18 Pro Max having a Qualcomm modem is unique.
iPhone 17 Pro and iPhone 17 Pro Max models have the same Snapdragon X80 modem worldwide, although TechInsights noted that the U.S. version of the iPhone 18 Pro Max has a newly-identified mmWave 5G antenna module from Apple.
We will have to wait for C2 vs. Snapdragon X80 performance tests.
Apple has yet to explain why only the U.S. version of the iPhone 18 Pro Max still has a Qualcomm modem, so we can only speculate for now. In 2023, Qualcomm announced that it would supply Apple with smartphone modems through 2026, so perhaps Apple is ensuring that it complies with its contractual obligations in a minimal way.
Apple's C2 modem supports ultra-fast mmWave 5G in the U.S., unlike its previous-generation C1 and C1X modems. Qualcomm modems in the iPhone 12 and newer already supported mmWave 5G in the U.S., so Apple played catch up here. Apple said the C2 delivers "meaningfully faster uploads" compared to the C1X while consuming 15% less energy.
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