Separate Polar H9 sensor from strap for battery life? : r/Polarfitness

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Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap for Gym, Cycling, Running, Outdoor Sports : Sports & Outdoors

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H10 HR recording issues : r/Polarfitness

This is my third Polar H10 dead in ten months : r/Polarfitness

Polar's New H9 Heart Rate Strap: Everything you ever wanted to know

Separate Polar H9 sensor from strap for battery life? : r/Polarfitness

H9 HEART RATE SENSOR M-XXL - Description

Polar's New H9 Heart Rate Strap: Everything you ever wanted to know