Activity tracker Polar A370 got constantly active heart rate sensor and is...

Activity tracker Polar A370 got constantly active heart rate sensor and is able to read GPS data from a paired smartphone

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Activity tracker Polar A370 got constantly active heart rate sensor and is able to read GPS data from a paired smartphone

Polar has introduced a new activity tracker called the A370. The novelty is estimated at $ 180 and there are constantly active heart rate sensor.