Apple's C2 5G Modem Rumored for 2026 iPhone 18 Pro Debut

Reports suggest Apple's second-generation modem will address key limitations of the C1, including mmWave 5G support, as part of its gradual shift away from Qualcomm.

Apple's C2 modem is expected to debut in the iPhone 18 Pro models in 2026, marking a significant step in the company’s in-house 5G modem development.
The C2 modem reportedly includes mmWave 5G support, addressing a major limitation of the current C1 modem used in the iPhone 16e.
The C1 modem, introduced with the iPhone 16e, is more power-efficient than Qualcomm’s modems but lacks mmWave 5G capabilities.
Apple plans to use the C1 modem in the upcoming iPhone 17 Air, set for release later in 2025, continuing its phased rollout of in-house modem technology.
Apple has extended its 5G modem supply agreement with Qualcomm through 2027, ensuring a gradual transition as it works toward integrating its modem with its main processor in the future.