I read in a review that the N800 has a "mini" USB socket, while the N810 has a "micro." Admittedly it's not a major difference, but I figure that I may be using that socket a lot. So an extra millimeter of thickness, making it more durable or easier to use, would be helpful. Sometimes in a poorly lit place, it can be tough to figure out which is the skinny side of those little trapezoid-shaped plugs.