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Activity Tracking Fitbit makes every step you take a step toward better fitness, even on your busiest days. Fitbit Ultra's super sensitive 3-D motion sensor tracks your day down to details a pedometer can't catch, showing your exact steps taken, calories burned, and distance traveled. The new altimeter tracks floors climbed so you can monitor this heart-healthy activity, encouraging you to take the stairs at home or work, or climb a little further on your next hike. The Ultra contains an accelerometer like the one in the Wii, tracking your activity more accurately than old-fashioned pedome...