It doesn’t matter how many sensors you have — it’s how you use them. Reposted with permission from Review.com.  The 3 Best Fitness Trackers Best Fitness Tracker Under $100 Garmin Vivofit 3 A low-profile, reasonably priced fitness tracker that still delivers on all of the necessities. It comes with a small built-in display that lets you easily keep an eye on your progress and the time throughout the day, as well as a user-friendly app. Our tests showed that it actually provides consistent step counting and distance tracking, too, which isn’t true of every fitness tracker we tried. ($99) Best Heart Rate Monitoring Fitness Tracker Fitbit Charge 2 For $50 more than the Vivofit 3, you get an even better app and all of the same basic functionality, plus heart rate monitoring. ($150) Best Heart Rate Monitoring and GPS Fitness Tracker Garmin Vívosmart HR+ A compact, feature-loaded device that’s waterproof and $50 less than its nearest competitor. ($200) Editor’s Note March 28, 2017 — Fitbit released a new heart-rate monitoring tracker, the Alta HR, at the same …