When it comes to exercising, your heart rate is the gold-standard metric to uncover how hard you're pushing. It tells you whether you're working aerobically or anaerobically, how your body is reacting ...

We may receive a commission on purchases made from links. Smartwatches and other wrist-bound fitness trackers have exploded in popularity over the past few years, but there's a wearable heart rate ...

View your vitals for more measured, focused training with our pick of the best heart rate monitors. Want to take your fitness – and your wellness – to the next level? Tracking your health metrics via ...