I would choose the x820. Tri-band isn't a problem, at least not in my area. The form factor is thinner and doesn't require flipping open to answer a call. The keypad seems much more natural and easier to use as opposed to the razr, which I have to hold with two hands to dial for fear of bending the phone and also getting the keys to actually dial. The screen on the razrs suck horribly, as well as the extremely poor camera and video capabilities. Also, everyone has a razr, so you stand out with a neat x820. The razr has very limited customizable options too.