Apple’s big surprise this cycle is its first truly mainstream in-house 5G modem, the C1X, debuting in the iPhone Air. Apple’s headline claim is bold: faster than Qualcomm’s Snapdragon X75 while using about 30 percent less power. But if you’re chasing the absolute fastest 5G performance, a leading industry analyst still gives the edge to Qualcomm’s latest chips—for now.
Ben Bajarin, CEO of the research firm Creative Strategies, told CNBC that Qualcomm remains the performance leader in raw throughput. A recent teardown backs that up in practice: the Snapdragon X80 is reportedly inside every iPhone 17 model except the iPhone Air, likely due to its higher top speeds and support for mmWave. Apple’s C1X, by contrast, is limited to sub-6GHz 5G and does not support mmWave.
That limitation is intentional, and it plays to Apple’s strengths. The C1X is built for efficiency and tight integration with the rest of the iPhone Air’s hardware, including the company’s N1 wireless chip. Apple is touting up to 27 hours of video playback on iPhone Air, and Bajarin argues that’s exactly where Apple’s custom approach pays off. His take: Apple’s modem may not match Qualcomm in peak throughput today, but Apple can tune it to run at lower power across real-world conditions, delivering better battery life—something most users will notice every day.
There’s also an important reality check about 5G speeds. Even cutting-edge modems like the Snapdragon X75 and X80 are constrained by the networks they connect to, which means those eye-popping theoretical figures are rarely seen outside ideal lab conditions. In day-to-day use, stable performance and longer battery life can matter more than chasing the fastest possible number.
Don’t expect Apple to ditch Qualcomm overnight. Bajarin predicts Apple will continue relying on Qualcomm modems in parts of the lineup for the next couple of years. Apple is steadily building its roadmap, though. After the C1 in the iPhone 16e, the company is said to be developing a C2 modem that could add mmWave support, bringing Apple’s custom silicon closer to feature parity with third-party solutions.
All of this is moving against a clear deadline. Apple’s 5G modem licensing deal with Qualcomm runs through March 2027. While that might be the last year Apple depends on Qualcomm hardware, Apple’s larger ambition goes further: combine 5G, Wi‑Fi, and Bluetooth into a single, space-saving package to boost efficiency, free up internal room, and extend battery life. Given the pace so far, that unified connectivity chip may arrive sooner than many expect.
What it means for buyers is simple. If you value all-day endurance and Apple’s deep hardware-software integration, the iPhone Air with C1X is designed for you. If you want the highest peak speeds and mmWave support, the rest of the iPhone 17 family with Qualcomm’s Snapdragon X80 remains the performance pick. Either way, Apple’s modem strategy is clearly shifting, and the next few years will be pivotal as it brings more of the iPhone’s wireless stack in-house.
