This is my third Polar H10 dead in ten months : r/Polarfitness
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Polar H10 Heart Rate Monitor Chest Strap - Ant + Bluetooth, Ecg/Ekg - Waterproof Hr Sensor For Men And Women : Buy Online at Best Price in KSA - Souq is now
Polar H10 Bluetooth / ANT + Heart Rate Transmitter
Polar H10 review: A tried and tested heart rate chest strap