Iphone data usage in settings include Wi-Fi?

I looked on the settings on my iphone, which i've only had for a month or so, and it said cellular usage 4gb sent and 4gb received. I'm a bit worried bc i often have cellular data turned off. Does this number include Wi-Fi usage? Is it an number that is total usage since youve had it(unless you reset)?

I believe thats all data, if you want to know your exact cell data then search the appstore for your carrier name and they usually have a free app to show you your usage.

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Yups, this data log accquires both wi-fi as well as your general packet data consumption from the day u last resetted the settings or phone itself. For knowing the actual cellular usage you may contact the service provider they will tell you about your current data status.