System downloading 2 gigabytes through wifi?

[Hock3y Monk3y29]

I have an S7 Edge, and I love the phone, but it has never quite had as much battery as other people have had. I seem to have finally found the culprit.....for some reason the system has downloaded over 2 gigabytes of something, over wifi, throughout the day. What the heck is this? See screenshots below....

 

[B. Diddy]

Do you see similar statistics in the Settings>Data Usage menu, under the Wi-fi tab?