Turning your data connection off saves battery life and money on data charges.
You need a data plan to use your operator's network for data services. Check with your operator for details.
With two fingers, swipe down from the status bar to open
Mobile data tile to turn the data connection on and off.
Note: If you don’t have the data connection turned on and you’re also not connected to a
Wi-Fi network, you won’t receive automatic updates to your email, social network accounts, and other synced information.