Polar heart rate monitors are the daddies
Being a Jockey requires me to maintain a very high level of cardiovascular fitness which is why I purchased a Polar Heart Rate Monitors to help me monitor my level of fitness. It has been a great help to me and I have seen my fitness improve no end, I would advise anyone to use a polar heart rate monitor and I certainly would not train without one now. there is not really a great deal more to say about watches or gadgets otgher than Polar really take the hrm monitor biscuit. This is something you can learn if you buy all the other exspensive brands that break quickly.