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Coverage· Apple· Published Sep 18, 2026

U.S. iPhone 18 Pro Max Uses Qualcomm Snapdragon X80 Modem

A TechInsights teardown confirms that the U.S. iPhone 18 Pro Max uses Qualcomm’s Snapdragon X80 modem, while other iPhone 18 models and iPhone 18 Pro Max units outside the U.S. use Apple’s C2 modem.

Coverage

DNA Brief

Signal Summary

The teardown also identifies a new Apple mmWave 5G antenna module in the U.S. iPhone 18 Pro Max. Earlier device firmware had pointed to the Snapdragon X80, while the smaller iPhone 18 Pro and iPhone Duo use Apple’s custom-designed C2 modem worldwide. Comparative performance results are not yet available, and Apple has not explained why the U.S. Pro Max retains Qualcomm’s modem.

Why It Matters

The finding shows that iPhone 18 Pro Max modem hardware differs by market, with only the U.S. version retaining Qualcomm’s solution while other versions use Apple’s C2. Without comparative testing, the hardware difference does not yet establish a real-world connectivity advantage for either modem.

Evidence

Start with the primary evidence, then review supporting sources and context.

1 items

Primary Evidence

1
  • MacRumorsDocumentOriginal

    iPhone 18 Pro Max in U.S. Has Qualcomm's Snapdragon X80 Modem

    Joe Rossignol

    “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.…”
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