Last week, I was able to get my hands on a Nike+ Fuelband to try out for a few weeks. I have to say, it is quite impressive. The hardware, the software, the whole experience is very well done.
I have decided to add a FitBit to my routine of self-monitoring, making it the 5th mobile device collecting data for this project (insulin pump, CGM, blood glucose monitor, iPhone, FitBit).
The FitBit Ultra costs about $100 and contains an accelerometer to measure the number of steps a person takes throughout the day. An altimeter measures change in elevation, meaning that the device can also measure how many floors of stairs you climb. The internal stopwatch can be used to measure sleep and, combined with your activity overnight, gauge the quality of your rest.