Kuo: all iPhone 17 models will have Apple's in-house Wi-Fi chips, enhancing connectivity and cutting costs; only the slim iPhone 17 will have the C1 modem chip
Ryan Christoffel / 9to5Mac :
Context & Ripple Effects
This report sharpens Apple’s component-insourcing roadmap: an earlier report tied an Apple Wi-Fi/Bluetooth design to the iPhone 17 and a reduced dependence on Broadcom Apple’s planned Wi-Fi and Bluetooth chip transition. It separates that broad Wi-Fi rollout from the initial, narrower deployment of Apple’s C1 cellular modem.
The C1 arrived as Apple’s first in-house cellular modem, replacing Qualcomm parts in its first use. Keeping it to the slim iPhone 17 model makes the Wi-Fi change the lineup-wide shift, while the modem remains a phased migration.
First-order effects
- Apple would control the Wi-Fi chip across the iPhone 17 range, with the reported benefits of lower component costs and improved connectivity applying across the lineup.
- Only the slim iPhone 17 would use C1, leaving the rest of the range on a different cellular-modem arrangement for this generation.
Second-order effects
- Broadcom faces a direct loss of Wi-Fi-chip content in the affected iPhones, consistent with the previously reported effort to reduce Apple’s reliance on it.
- A limited C1 deployment lets Apple validate its modem path without making the entire iPhone 17 portfolio dependent on the new cellular component.
Third-order effects
- If Apple expands internally designed connectivity silicon beyond this first modem deployment, it can consolidate more of the radio stack under its own product and supply-chain control.
- The split rollout illustrates a broader pattern in custom silicon: Apple can move mature or lower-risk components across a full product line before scaling a newer, more complex subsystem.
The trend: Apple is progressively bringing connectivity chips in-house, using staged product rollouts to reduce reliance on external component suppliers.