Not sure how great a deal it is but I get Massdrop's emails and I seldom buy anything.
Cursory search indicates it's cheaper that most stores including probikekit.
I don't have a polar watch but I do swear by their Polar OH1 HRM.
https://www.massdrop.com/...95544613118251083946
Cursory search indicates it's cheaper that most stores including probikekit.
I don't have a polar watch but I do swear by their Polar OH1 HRM.
https://www.massdrop.com/...95544613118251083946