Not All the Data You Get from Your Fitness Tracker Is Accurate—These Are the Most and Least Reliable Metrics

Whether it’s the Apple Watch, FitBit, Oura Ring, or (and!?) the Garmin Forerunner—to name just a few—wearables have become as integrated into our daily use and lives as a smartphone or any other part of clothing. As the market cap and development of wearables has progressed—from semi-cumbersome gadgets that could only track a few data points to sleek items that track the distances of our steps, how well we sleep, what our