Wearing my Jawbone UP when I was marathon training was a motivator in itself. There's nothing like seeing I'd blown past the 10,000-step mark (you can customize your own goal to another amount) to help me celebrate finishing an arduous run, and it was great to track my runs through the weeks to see how I had progressed in training. It was eye-opening to me, however, to realize that on days when I didn't run, I could sometimes barely even make the 10,000-step mark — I hadn't realized I was so sedentary on non-workout days. Wearing the UP motivated me to hit that goal; had I not been tracking my steps, I would have never decided to take the long route to the bus or go for a quick walk outside at the end of the day.
Aside from keeping tabs on my steps for the day, I also liked that the UP analyzed my sleep patterns; in addition to tracking your light and deep sleep cycles every night, you can view all of your data in trend graphs based on days, weeks, or months to see when you had better or worse health patterns.
Favorite feature: The fact that you never have to take the Jawbone UP off your wrist — even when you shower! — makes tracking steps and sleep a no-brainer. And even if you forget to press the button at night to change to sleep mode, you can manually enter your hours the next day.
Least favorite feature: Racking up steps during my runs was fun, but I wasn't able to similarly track my movement during strength-training sessions. After an hour-long intense TRX class, for example, my Jawbone UP barely registered any movement (or calories burned) at all. Instead, I was only able to get a general estimate of calories burned based on the UP's exercise database.
Verdict: Go for the Jawbone UP if you're in need of a pedometer and sleep monitor, but don't count on it as an all-around fitness tracker. Also, since the UP makes a 24-hour fashion statement, make sure you choose a color that you'll want to wear with all your outfits!
— Leta Shy, associate editor, Fitness