How to turn data services and data roaming on/off on my Apple iPhone 6s

Click each step to see the action. You can also click the picture or use the arrow keys.

Heads-up! Looks like you’ve got Javascript Active Scripting tuned off in your web browser. You’ll need to turn it on so you can see all the help illustrations in your searches.

When abroad, data roaming is required to use email, web browsing and other data services. Please note that data roaming charges will apply.

To avoid unwanted roaming charges, you can turn off data roaming. You can also turn off data services altogether. This way, your Apple iPhone 6s will only transmit data over Wi-Fi.
1. Touch Settings.
2. Touch Cellular.
3. Touch Data Roaming to change the setting (e.g., from on to off).
4. Data Roaming is now off.
Touch Data Roaming again to turn it on.
5. To switch data off completely, touch Cellular Data.
6. Data services are now off.
Touch Cellular Data again to turn data services on.