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Polar FT40 Women’s Heart Rate Monitor Watch (Beige) New EnergyPointer feature significantly simplifies exercise by graphically displaying your exertion in one of two zones – either fat burning or fitness improvement – helping people to exercise smart and reach their goals (see image above)

Timex T5J031 Unisex Digital Fitness Heart Rate Monitor Watch Zone Trainer Digital Heart Rate Monitor with a black resin strap and digital display, INDIGLO night-light, 100-hour chronograph, 27-lap memory, 100-hour countdown timer, Alarm with 5 min back up, Water resistant to 50 meters, Target zones, Zone trainer, Average heart rate, Time in zone, Calories burned, [...]