It's a chunky phone, but not huge by any means. If you search around, there's a link somewhere to whatever that site is that lets you visually compare different objects to scale - that should help. As far as carrying it, I use a gadget holster from UrbanTool, but a medium-sized belt case would work as well. I rarely carry it in my pockets, but anything that isn't jeans or similarly tight-fitting pants will probably hold it. As far as needing an extra belt to hold up your pants, I think you're fine there... you can just get more holes punched in the one you have. (no, but seriously, that won't be an issue unless you carry as many gadgets as I do) (edit: no, I'm not kidding... I have to go get that done)