I've read cases for yes and no so I thought I'd see what users here feel. I don't think it should, since I assume a web page for example is the same size because it would be the same source coming to any phone, but I'm seeing massive data use with my 6S Plus even with all the iCloud, background app refresh and cellular tweaks I can think of/Google. I'm thinking of taking my 3GS or my iPhone 5 (since both are unlocked) to work a few days this week to compensate for burning through 1/4 of my monthly data in 4 days. Back when my 3GS was my main phone I might see 30-50mb/day, my iPhone 5 was about 50-90, and my 6S Plus is using 120 or more. Does screen resolution affect the size of a page, or Twitter's use when loading new tweets? Thanks.