|Polar 90069740 Vantage M Multi Sport GPS Heart Rate Watch - Black (S)
|Polar Vantage M measures heart rate from the wrist with Polar Precision Prime sensor fusion technology. This innovation combines optical heart rate measurement with skin contact measurement in order to rule out any motion artefacts that might disturb the heart rate signal and produce unreliable readings.
This way, your heart rate gets tracked accurately even in the most demanding conditions and training sessions. more ...