Data Saver helps you limit cellular data costs by restricting background data usage. 
	 
 You can also set applications to always have access to a data connection—such as your email app—to be ignored by Data Saver.
- 
From the 
				Home screen, tap 
				. 
				 
			 
 
- 
Tap 
			 Data Saver and then tap the 
			 On/Off switch to turn it on or off. 
		  
 
- 
Tap 
			 Unrestricted data, and then tap the 
			 On/Off switch next to those apps that you want to still have access to data connection even if Data Saver is turned on.