An easy way to decide which usage plan is best for you is to look at which apps you use the most. Below are the apps that drain data most quickly. Just compare your use per hour on an average day to figure out how much you’re using monthly.
You can also check your current month's usage on your phone: go to Settings > Connections > Data Usage. The screen shows your billing period and the amount of cellular data you've used so far.
These examples provide a guideline to the amount of data used per service.
Note: Data usage varies per phone/device. The above examples are based on averages using a smartphone and are estimates only. The actual amount of data used for the described activity can vary significantly from the examples above.