The Polar H7 Heart Rate Sensor is part of the Heart-rate monitor test program at Consumer Reports. In our lab tests, Heart-rate monitor models like the H7 Heart Rate Sensor are rated on multiple criteria, such as those listed below.

Accuracy: Accuracy was measured against a highly accurate electrocardiograph; the higher the accuracy score, the more often the monitor displayed the same heart rate as the reference did.

Ease of use and features: Ease of use includes features, clarity of instructions, and convenience as judged by panelists who used the devices.

Sport versatility: Sports versatility indicates whether a model is difficult or easy to use for all or most sports.