When you're at home with your Galaxy Note 3 you probably don’t think about how much data you are using. The chances are that you connect to your wifi network and use the internet without giving usage levels a second thought. But when you leave the house and start to use a data connection, you may need to think about it a bit more. Your phone provider may place a cap on how much data you can use, or you may pay for every megabyte you download. In either case, you need to monitor how much data you're using – here's how to do just that.
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