heart rate monitor

  • This Leg-Based Wearable Might Track Calorie Burn Better Than Smartwatches

    This Leg-Based Wearable Might Track Calorie Burn Better Than Smartwatches

    Estimating calorie counts is an imperfect science, especially when it comes to tracking how many you’ve burned during a given activity. Wrist-based fitness trackers and smartwatches’ estimates for calorie burn can be off by as much as 40-80%. However, engineers from Stanford claim they’ve created an inexpensive, accurate device that you can actually make for yourself.…