RE: Polar OH1 - Optical Heart Rate Monitor armband-Ditch the Chest Strap

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pranto (58)in #steemhunt • 6 years ago

W0W! Nice review @elsiekjay but how do the OH1, H10 and the Scosche compare with the Apple Watch HR sensor readings? Are they totally off?

6 years ago in #steemhunt by pranto (58)

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