You can turn off data on an iPhone all at once, for specific apps, or by turning on Airplane Mode through the Control Center. Here's how to do each.

Switching off cellular data as needed can spare your phone's battery lifeu2014and save you from overage fees.

How to turn off cellular data completely on your iPhone If you'd like to take some additional measures against incurring roaming charges, turn off cellular data entirely. 1.

If you are on LTE, 4G, or 5G, take the following steps to turn on low data mode. Once again, go to the Settings app, this time clicking on the Cellular button.

Use the options in Cellular Data (iPad) or Cellular (iPhone) to prevent excessive use of certain services from consuming a lot of your data allocation. You can turn on and off specific apps, and ...

Made available with iOS 8, Continuity and Handoff on iOS and the Mac enable users to receive SMS messages, phone calls, and more across devices. First in our series of tips, here's how to turn on ...