From the press release:

> iPhone 17e also features C1X, the latest-generation cellular modem designed by Apple

But the 17e iPhone seems to lack the Apple developed N1 chip that provides Wifi 7 + Bluetooth 6. So presumably they're using off the shelf components for Wifi and Bluetooth in the 17e.

The modem chip (the C series) and the N series are two different chipsets.

For example, the 16e has the C1 modem but the standard Broadcom (or whoever) Wi-Fi and Bluetooth chipset.