To toggle it on/off, swipe the status bar down and touch .

When you turn off cellular data, you can still use data over Wi-Fi.

Cellular data must be ON if you want to:

• Receive or send multi-media messages
• Share your phone’s internet connection with other devices

Data plans often have limits, and it's easy to exceed them. Setting up a usage warning can prevent surprises by alerting you when approaching your limit. You can even set a usage limit to turn off cellular data when it's reached, eliminating unexpected charges.

1. Go to Settings > Network & internet > Mobile network.

   Or, in quick settings, touch & hold .

2. If you're using two SIMs, tap the SIM name.
3. Tap Data warning & limit.
4. To set a warning, turn Set data warning on , then tap Data warning and enter the amount of data.
5. To set a usage limit, turn Set data limit on , then tap Data limit and enter the amount of data.

About background data

Even when you’re not actively using them, most apps use data in the background to sync information and deliver notifications.

To conserve data when you’re running low, you can use Data Saver to turn off background data for all apps. Or, to restrict background data used by an app indefinitely, you can turn off background data specifically for that app.

Notifications only when you open the app

When you turn off background data for an app, it won't sync until you open it, so you will receive NO notifications until you open the app and it syncs.

Restrict for all apps when you’re low

1. Go to Settings > Network & internet > Data Saver.

   Or go to Settings > Network & internet > Advanced > Data Saver.

2. Turn Use Data Saver on .

   You'll see in your status bar and all apps are prevented from using background data.

   TipThe first time you turn Data Saver on, is added to quick settings. After that, just swipe the status bar down and tap to turn Data Saver off/on.
3. To allow certain apps to continue using background data, tap Unrestricted data, then next to the app name, slide the switch on .

Restrict for specific apps indefinitely

1. Go to Settings > Network & internet > Mobile network.

   Or, in quick settings, touch & hold .

2. If you're using two SIMs, tap the SIM name.
3. Tap App data usage.
4. Tap an app, then turn Background data off .