In keeping with the "obsessive collection of health-related data" theme, BodyMedia says it's easier to get into shape if you really know what you're doing, or what you've done, anyway. The BodyMedia FIT Armband has an accelerometer and range of other sensors designed to track how fast and how much you move, the number of steps in your routine, amount you sweat, skin temperature and the amount of heat you're radiating into the environment. It's not clear how all that adds up to better fitness, but the site does refer to one study that compares FIT's performance - favorably - to a $40,000 analysis machine that tracks oxygen volume in the blood.
Kevin Fogarty is a freelance writer covering networking, security, virtualization, cloud computing, big data and IT innovation. His byline has appeared in The New York Times, The Boston Globe, CNN.com, CIO, Computerworld, Network World and other leading IT publications. View Full Bio