Are you looking for a heart rate monitor and want to know what others bought? This top 10 is a current representation of the bestselling heart rate monitors. These are the most popular models at the moment. Use this list as inspiration, but also keep in mind what you want to pair the heart rate sensor with. Do you want to connect the sensor to a sports watch, for example? It must be compatible with the watch you have. In addition, the band must fit well around your chest.