Personally I find passports slightly too large to comfortably fit in my pants pocket, and a passport is definitely thinner than this phone. Whenever I travel and have to have my passport in my pants pocket I’m always a bit uncomfortable about it, I usually prefer to keep it in my backpack or somewhere else. If you’re carrying this in a purse then it sounds great. The passport aspect ratio is pretty awesome on phones, I tried one shaped like this at a Chinese phone store last year and enjoyed it. But shoving a $2000 device the size of a thick passport into my pocket on a daily basis feels like a bad idea.