This wikiHow teaches you how to find out how much mobile data is being used (overall and by application) on a Samsung Galaxy device.
Step
Step 1. Open the device settings menu (“Settings”)
To find this menu, drag the notification bar from the top of the screen downwards, then touch
Step 2. Touch Connections
This option is the first option on the menu.
Step 3. Touch Data usage
You can see the total amount of data used in a month under the “USAGE” segment, at the top of the screen.
Step 4. Touch Mobile data usage
This option is under the “Mobile” heading. Additional information regarding data usage will be displayed. Total data usage remains displayed at the top of the screen.
Step 5. Select a time range
Tap the drop-down menu in the upper-left corner of the screen, then select the month you'd like to view.
If you select a different month, the total data usage at the top of the screen will be updated to show data usage information for that month
Step 6. Touch the app to see its data usage
The amount of data used by the respective application during the selected time period will be displayed.
