FitBit One - got mine only last week, but it is super. Easy to wear, no having to reset buttons all the time, and it monitors you steps all day long! Resets on its own after midnight each day. It monitors stairclimbing, as well as steps, mileage, calories burned - and you can monitor your sleep patterns, even use it as a silent alarm clock. Tells you the time too. Syncs easily to SP. It even sets up motivational programs, earning badges when specified goals are met. Keeps track of everything over time. For me, it was just what I needed. I got mine on Ebay. Pretty costly still, but I think it is going to be worth every penny spent!! (and will no longer have to keep tryng out the el-cheapo ones); it's one of those "You get what you pay for" items.