How to turn off data on an iPhone

You can turn off data on an iPhone all at once, for specific apps, or by turning on Airplane Mode through the Control Center.

How to turn off data roaming on your iPhone for international travel, or completely turn ...

It’s a good idea to turn off data roaming on your iPhone if you want to avoid using data while traveling internationally.
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Before Upgrading to an iPhone 17, Turn Off This One Setting on Your Old Device

1. Tap Settings on your iPhone. 2. Tap Face ID & Passcode. You might have to enter your Passcode here to continue. 3. Tap Stolen Device Protection. 4. In the new menu, toggle on Stolen Device ...