At this point, the Data Roaming switch should be visible onscreen. If you don't see it and your iPhone uses Dual SIM or Dual eSim, you might need to tap Cellular Data Options to find it.

Researchers may have finally figured out how to decode cellular signals with unique devices that use light.

You can also prevent your device from using cellular data for FaceTime calls by opening Settings, tapping Cellular, and scrolling to FaceTime and toggling the green switch to the off position.

Microsoft announced today that it will retire the increasingly superfluous Mobile Plans app in Windows 11 in February 2026.

Wi-Fi can easily serve as a backup for your cellular network for calling and texting, especially if you find yourself without signal.