Caved and bought a FitBit One!

Vorcha

I finally did it. I crowbarred open my purse and plucked out the notes with a pair of pliers. £59.99!

It looks like a magical piece of kit, I figured it'd be much more accurate than going off the machines, though I don't particularly understand how it works when it's clipped to your torso for things such as seated biking and whatnot.

Who else has one of these little babies? What's been your experience with it so far? Worthy purchase?