Garmin has issued its latest public beta The update includes strength and body battery improvements for Garmin users It also includes an important fix for heart rate zones on the Forerunner range.

Get to know the link between your effort level and your heart rate. Plus, how to use heart rate to your performance advantage ...

Luckily, the best GPS running watches now have optical heart rate sensors built-in. However, even the latest Garmin watches aren’t as accurate as strapping on a reliable HRM. To help you unlock ...