I moved to the usa from mexico around 10 years ago, I eat mostly the same as I did back then (mostly home made food) with around the same activity level and I still gained like 15 kilos
I have slightly big hand and I don't mind the current sizes, I like them. But I wish all phones were thicker, they just so thin and slick. I alwasy have to add a case to make them ticker and easier to use