Polar H9 and H10 Heartrate Sensors. FULL REVIEW!

*DISCLOSURE*
This review is of the POLAR H9 and H10 heart rate sensor straps. Polar did send me these products for the purpose of my review, but they aren't paying me to make the review, and had no input or early access to my review before I published it on UA-cam. These are my own thoughts and opinions, and no one elses!
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Daniel "Ultra Dad" Allnutt
PO Box 74
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