At the heart of the system, the C1 (Cellular 1) chip first appears in the iPhone 16e. It is also expected to debut in other Apple devices in the coming months and will likely see use across all or most of the iPhone range by this time next year. Apple calls it “the most power efficient modem ever in an iPhone.”

Phone 17 5G modems will be made by MediaTek, as Apple moves away from Qualcomm. Future iPhones will use Apple's solutions instead.

Apple plans to move away from Qualcomm modems in the Apple Watch while bolstering its new in-house alternatives, according to The

Apple and Qualcomm's relationship has been strained for a decade and the iPhone 16e C1 chip is Apple's first move to cut ties once and for all.

Apple has just introduced the iPhone 16E, a spiritual successor to the iPhone SE line that has a significant first: it introduces Apple’s long-awaited in-house 5G modem called the C1. The chip, which Apple says is the most power-efficient modem in a phone, is Apple’s bid to end its reliance on Qualcomm’s 5G chips.

Apple on Wednesday formally introduced its first in-house developed 5G modem that will be used in the company's new $599 6.1-inch iPhone 16e smartphone, aimed at the mainstream audience. The modem is the first fruit from Apple's acquisition of Intel's 5G modem business unit six years ago.

However, we can’t say we’re too surprised. Chip development isn’t an overnight endeavor so Apple needs to start work early if they hope to get it ready in time for future re