my only reason for upgrade to 6s plus and then 7 plus was better camera - optical image stabilization on 6s plus and dual camera with portrait mode on iphone 7

my only reason for upgrade to 6s plus and then 7 plus was better camera - optical image stabilization on 6s plus and dual camera with portrait mode on iphone 7 plus. small iphones (6S and 7) do not have the best cameras.