Apple’s long-awaited mmWave C1 modem will not arrive until 2026, according to a new report from analyst Ming-Chi Kuo. The delay means that upcoming iPhones, including the iPhone 17, will likely continue relying on Qualcomm’s 5G modems for high-speed connectivity.
Apple has been working on its in-house C1 modem to reduce dependence on Qualcomm. However, the first-generation C1 lacks mmWave support, a key feature for faster 5G speeds in urban areas. Apple planned an updated version with mmWave capabilities, but production setbacks have pushed its release to 2026.
Why Is Apple’s C1 Modem Delayed?
Kuo’s report suggests that Apple’s C1 modem development is behind schedule due to challenges in chip manufacturing and network optimization. Unlike processors or GPUs, baseband chips do not aggressively adopt the latest fabrication nodes, making it harder for Apple to achieve performance and efficiency gains quickly.
The refreshed C1 modem, expected to use a 28nm process, is still under development. Apple originally intended to shift to a more advanced 3nm process, but this transition is now unlikely for next year’s iPhone lineup.
How This Affects Future iPhones
With the mmWave C1 modem delayed, the iPhone 17 lineup in 2025 will likely continue using Qualcomm modems, maintaining Apple’s reliance on its competitor for cellular connectivity.
While Apple is pushing for a self-sufficient modem ecosystem, this delay suggests that its in-house solution is not yet ready to compete with Qualcomm’s industry-leading chips. Some reports indicate Apple is working on a next-generation C2 modem, but details remain scarce.
What’s Next for Apple’s 5G Strategy?
Apple’s ultimate goal is to develop its own modem platform, eliminating reliance on Qualcomm. However, this setback highlights the complexity of building a competitive 5G modem from scratch.
For now, Qualcomm remains the primary supplier for iPhone modems, and Apple will need to fine-tune its technology before mass production of the mmWave C1 modem begins in 2026.
Final Thoughts
Apple’s modem ambitions face delays, but the company remains committed to developing its own 5G solutions. Until then, iPhone users can expect Qualcomm modems to power their devices for at least another generation.
