If several apps are using an internet connection, you can use the Connection manager app to close some or all network connections.
Select > Settings and Connectivity > Connection manager.
In the active data connections view, you can see your current network connections. is a mobile data connection, and is a Wi-Fi connection.
Select and hold the connection, then select Disconnect.
|View details for a connection|
Select the connection.
Details, such as the amount of transferred data and connection duration, are shown.
Tip: In most views, to see what connections are active, swipe down from the notification area.