I'd still love to hear a convincing argument from someone as to the benefits of counting steps and measuring heart rate with a wrist band- Are people feeling like they are more fit because they walked to lunch "the long way" so they can reach the 10000 step goal that Fred from accounting has set for them? Do they feel healthier because they were regularly watching their heart rate reading during their hour in the gym…
But I figured it also tracks how many hours I sleep, and I've been using it to try to improve those values. Seeing bad (or good) numbers does affect your motivation to reach the goal.