Originally Posted by
JohnJ80
Either the Scosche or the Wahoo optical version that go around your arm are great. Done many rides with them. I've had both and would be happy with either one.
I've had the chest straps which I hated.. I also had the Mio wrist one which I thought was a piece of crap. Never was reliable.
For me the Mio Link was pretty consistent, I used it for 5 years and it always measured the same values. The max HR was 199, max long distance anaerob was 187, anaerob threshold around 170-175, easy 160, very easy 145 and so on. It always gave me the same values consistently for the same intensity. I am not sure if these numbers were the same as the chest straps would have measured, maybe not, but they were consistent and for me that's what matters the most. For intervals it was crap though because of the 15 sec delay.