If you have an iPhone that is able to make and receive calls, then you probably also have a data plan with your cellular carrier. This means that each month you have a fixed amount of data that you pay for. If you use more than this data allotment, then there is typically an additional charge for this data usage.
Most carriers have adjusted their plans so that the additional cost for this data is minimal, but heavy data users, or those who do not wish to pay any more for their monthly cell phone bill, might want to avoid these additional charges. One way to do this is to simply turn off all cellular data on your device. When you do this, you will not be able to use cellular data for anything, even emails and social media. If you want to stop all cellular data usage on your iPhone, then our guide below will show you how. If you are with Verizon, then find out what VZW Wi-Fi is and learn why it can be helpful.
Turn Off All Cellular Data on an iPhone 6 Plus
These steps were performed on an iPhone 6 Plus, in iOS 8.1.2. Earlier versions of iOS may have slightly different instructions.
Note that you can still use data when you are connected to a Wi-Fi network. You can read this article to learn how to tell the difference between Wi-Fi and cellular.
Step 1: Open the Settings menu.

Step 2: Select the Cellular option.

Step 3: Touch the button to the right of Cellular Data to turn it off. You will know that it is turned off when there is no green shading around the button.

You can also choose to turn off cellular data for specific apps. For example, you can turn off cellular data for Netflix if you find that it accounts for much of your cellular data usage.
Matthew Burleigh has been writing tech tutorials since 2008. His writing has appeared on dozens of different websites and been read over 50 million times.
After receiving his Bachelor’s and Master’s degrees in Computer Science he spent several years working in IT management for small businesses. However, he now works full time writing content online and creating websites.
His main writing topics include iPhones, Microsoft Office, Google Apps, Android, and Photoshop, but he has also written about many other tech topics as well.
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