Justin Merrigan on Twitter: "Really impressed with Garmin Fenix6 heart rate compared to Polar H10. I had the strap synced to a Polar Vantage. Large differences in ascent and descent (Garmin closer
Polar H10 vs Garmin HRM-Dual, help me analyze which one to trust - Epix (Gen 2) - Wearables - Garmin Forums
Amazon.com: Heart Rate Monitor USA Replacement Soft Strap (Works with Polar H7 H9 H10 & More / Works with Garmin Dual) Med/XXL : Everything Else