Fitbit, why can’t I have my data?
The Bodymedia FIT, in addition to being a superior device overall(1), has an API which let's you access caloric burn and other data up to single minute detail levels. If you Google around, there are some blog posts describing how to dump data from it using standard USB serial port drivers.API webpage: https://developer.bodymedia.com/docs/read/Home1- The Bodymedia gives you steps taken as well as accurate sleep and caloric burn readings.