Android OS seems to be using about a gigabyte a day of WiFi traffic. Does anyone what this might be, could it be a false reading, and could you guys please check if you have similar readings. (Under Mobile Data, enable Show Wi-Fi usage in the menu).
I've searched for the solution already and people mentioned Google backup, auto-uploading of photos, various syncing or uploading services etc... And all of that is disabled since I've never used it. I'm not noticing anything else suspicious including battery life so I'm pretty confused right now.