How do I monitor Data Usage on my Samsung Galaxy S III?

Your mobile device has a built-in Data usage application. The application shows how much data you have used and which apps or services are responsible for your data usage. You can also set mobile data limits, view Wi-Fi® usage, restrict background data usage, and toggle data roaming usage on or off.

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Accessing Data Usage

To access the Data usage app, from the Home screen, touch Menu  > Settings  > Data usage.

Managing Data Usage

Data usage shown in the Data usage app is measured by your mobile device. Your carrier's data usage accounting may differ.

Place a check mark next to Mobile data to turn mobile data On or Off. Mark Set mobile data limit option to disable the data connection when the limit is reached. By marking Set mobile data limit, you will be alerted when you reach a preset warning limit. To adjust the limit or warning, touch the corresponding bar on the graph and drag it up or down. You can adjust the date range shown in the chart by editing Data usage cycle.

You can touch Menu  to access the following additional options:

  • Data roaming: When you mark this feature, you set your device to roam to other networks for data when you are outside of your coverage area. Marking this option may cause you to incur additional charges from your wireless carrier. Please contact your carrier for information about the costs of data roaming.
  • Restrict background data: Restrict your device's use of data for background tasks unless your device is connected to a Wi-Fi® access point.
  • Auto-sync data: Automatically synchronize your accounts.
  • Show Wi-Fi usage: Show an additional tab covering the Wi-Fi data usage on your device.
  • Mobile hotspots: Lets you select the Wi-Fi networks that are mobile hotspots. When selected, apps can be restricted from using these networks when in the background and can also warn you about using these networks for large downloads.

The list of applications shows you applications that have used data on your device, and how much data each application is responsible for using during the data usage cycle selected. Touch an app to get more information about it, to View app settings, and to Restrict background data for each application individually.

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