Smartwatch accuracy exposed: Why your step count, heart rate, and fitness data could be wrong

Smartwatches provide useful fitness insights but often give inaccurate estimates for calories, steps, heart rate, sleep, and ...

Your smartwatch is lying to you about your fitness. Here’s how

Smartwatches estimate your heart rate using sensors that measure changes in blood flow through the veins in your wrist. This ...
CNET

I Ran 30 Miles With 5 Smartwatches. Here's the One You Can Actually Trust

Apple, Garmin, Samsung, Google or Amazfit? I put these watches through the paces to see where they land on step, distance and ...