Fitness trackers are hot, but do they really help?

The Seattle TimesFitness trackers are hot, but do they really help?The Seattle TimesStrapped to your wrist, shoe or clothes, fitness trackers can grab a lot of data: how many steps you've taken, where you've run, how many calories you've burned, how fast your heart is beating, how much oxygen you've got in your blood, and how well you ...Fitbit makes it easy to track, view fitness activitySt. Cloud TimesFitbit tracking data comes up in another court caseEngadgettất cả 5 bài viết »