POLAR Grit X - Rugged Multisport GPS Smart Watch - Ultra-Long Battery Life, Wrist-Based Heart Rate, Military-Level Durability, Sleep and Recovery, Navigation - Trail Running, Mountain Biking : Sports
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Polar h10: why is my heart rate flat on the app, but continuous on Garmin watch : r/Polarfitness
Polar H10 Heart Rate Monitor: Very Long Term In-Depth Review
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Polar H10 Heart Rate Monitor: Very Long Term In-Depth Review
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Polar H10 not measuring heart rate even though connected to polar flow app? : r/Polarfitness