It appears the iPhone Air and iPhone 16e are the only devices with the Apple radio basebands so far.
https://theapplewiki.com/wiki/C4000
16e still uses a Broadcom chip for WiFi + Bluetooth, though. iPhone Air is currently the only iPhone that uses both Apple-designed baseband + WiFi/BT chips.
+ iPad Pro.
16e still uses a Broadcom chip for WiFi + Bluetooth, though. iPhone Air is currently the only iPhone that uses both Apple-designed baseband + WiFi/BT chips.