In the Battle of the Fitness Trackers, the Walkers Win

In the Battle of the Fitness Trackers, the Walkers Win
Sonia Anderson and Landy Sorensen often walk together on Friday mornings while volunteering at a local food bank. The friends track each other’s progress on their cellphone apps and compete to see who logs the most steps. Bruce Horovitz/KHN
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When Sonia Anderson got her first Fitbit step tracker, her poor pooch, Bronx, had no idea of all the steps that were coming.

The device—which counts every step Anderson takes and displays those steps on an app—was a Christmas gift from her daughters two years ago.