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 if you're looking for accurate readings, you may want to consider a chest heart rate monitor. Whether you're looking to track your heart rate during exercise or are tracking your beats per ...

In this setting, the atrial rate (P waves) and ventricular rate (QRS complexes) are at different heart rates. One quick and easy way to measure the ventricular rate is to examine the RR interval ...