From this data, a pulse rate can be derived, and the LEDs flashed with a heart graphic in concert with the rhythm of the wearer’s heart. The benefit of the PPG in the EmotiBit is that it can be ...

Heart-rate monitor Ratings Check up on your heart rate with a top heart-rate monitor. With versatile designs and features, heart-rate monitors help you keep track of every beat.

But the best heart rate monitors aren't all created equal. For cyclists, the most popular are chest strap heart rate monitors, which, at their most basic, need to capture your beats per minute ...