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Of course your heart rate is affected by lots of other factors than simply effort (weather, wind, elevation, nutrition,...

For example, some monitors only keep an eye on heart rate, while others offer additional fitness metrics, such as:While some heart...

For example, some monitors only keep an eye on heart rate, while others offer additional fitness metrics, such as:While some heart...

The device uses optical sensors to track heart rate and provides metrics like:breathing ratecalories burnedsteps, It also measures sleep and stress levels and even...