Data usage refers to the amount of data uploaded or downloaded by the device during a given period. Depending on the wireless plan, you may be charged additional fees when your data usage exceeds your plan's limit.
Data usage settings allow you to:
Enable Data Saver.
Set the data usage warning level.
Set a data usage limit.
View or restrict data usage by app.
Identify mobile hotspots and restrict background downloads that may result in extra charges.
