Polar A370
If you are serious about your training, you may want to invest in an activity tracker. The model is waterproof.
Watch Shop
Polar A370 Fitness Tracker - LCD / White
£134.55
The Fitness Store
Polar Polar A370
£169.50
OnBuy
Polar Unisex A370 Activity Tracker with Continuous Heart Rate, Black, Medium/Large
£302.94
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