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

For example, in a congested network area, the A18 chip in the iPhone 16e can instruct the C1 modem to dynamically manage traffic, prioritizing your needs in real-time. If you’re trying to send a photo or video to someone, for instance, the A18 will tell the C1 to prioritize that network traffic over other data tasks.

There's been a lot of fear in the last few days that Apple left off MagSafe off the iPhone 16e because it somehow interfered with Apple's C1 cellular modem, but physics precluded that from the start.