Fitbit is a wireless device that automatically tracks your calories burned, steps taken, distance traveled and sleep quality. Unlike a pedometer, the Fitbit Tracker uses a MEMS 3-axis accelerometer that measures motion patterns. The device syncs wirelessly to your computer to keep tabs on your exact movements, so you can learn how active you are and how to tweak your exercise habits to meet fitness goals. The Fitbit Tracker is available at fitbit.com for $100.
Fitbit: wireless fitness tracking