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Re: How can I tell when data is being used?
stef7
Master - Level 2

The URL that Salisbury posted to the YouTube video is very good. But it omits an additional feature of the monitor... the monitor can also track WiFi usage. At least on the LG G2 it is capable of doing so. Verify this on the S4.

After going into Settings | Mobile Data, select the Menu key, and check "Show WiFi Usage".

Now when you go into Settings | Mobile Data, you'll see two tabs, one for Mobile and one for WiFi. You can select the tab you are interested in seeing the results.

When you suspect your device is using either radio a lot, this is a great tool to diagnose what program is using that bandwidth, either Cellular Radio, WiFi (or both).