>>2680362I bought a fitbit, the new one, to monitor my health metrics. Lasts a week on 1 charge, is small and unobtrusive. The other night I had a particularly intense dream about riding a horse around my old high school's field for some reason -- when I looked at the app the next day, it had noticed that my resting heart rate was much higher than usual at this time. I like the way I can monitor stress too, and activity but the step-meters on these devices is never great.