Indicates whether the model employs a chest strap mounted sensor that transmitts to a watch, a chest strap mounted sensor that transmits to an iPhone app, a watch that requires the user to touch ...

Comfortable, reliable, and featherlight, the Polar OH1 is one of the best optical armband heart rate monitors we've tested ... the exact number of beats per minute matters less than the heart ...

The sheer number of physical tracking features ... piece of equipment every time you want some heart rate data. Smartwatch heart rate monitors work by shining a light - usually a green one ...

With wearables still trying to solidify themselves in the consumer health space, there are a number of factors ... optimal sampling rate for wrist-worn optical heart rate monitors.