I've always used a polar heart rate monitor when I play hockey to help me find my VO2 max and my target heart rate range. They're one of the few really accurate

I've always used a polar heart rate monitor when I play hockey to help me find my VO2 max and my target heart rate range. They're one of the few really accurate heart rate monitors out there. These also have a myriad of other functions. http://www.polar.com/us-en/products/get_active/fitness_crosstraining/loop http://www.polar.com/us-en/products/get_active/fitness_cross... You can find a Polar Loop bracelet with the H7 heart rate monitor strap for around $150.00, which is a lot less than the Microsoft Band: http://www.ebay.com/sch/i.html?_odkw=polar+h7&_from=R40&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.XPolar+Loop+%2B+Polar+H7+heart+rate+monitor&_nkw=Polar+Loop+%2B+Polar+H7+heart+rate+monitor&_sacat=0 http://www.ebay.com/sch/i.html?_odkw=polar+h7&_from=R40&_osa... I apologize in advance for the janky links.