For a good training session, you need a few things to measure; time, distance, speed and heart rate. There are a few options, you can use a computer and a heart rate monitor or you can combine them in one. this is what I want to look at, a few options on the heart rate monitor market that allow cycling functions to be included.
One of the main manufacturers is Polar, which is one of the leading Heart rate monitor producers world wide. It has some high end watches that will give you, functions like: speed, distance, heart rate, training zones, altitude, temperature,
even a power sensor to measure which leg gives more power. they also have computers with some of those functions. They deliver a steer holder with the package. Only thing is, you have to buy the accessories like the power sensor or the pedal frequency next to it. The newest S725X features all this and more.
If you look for a cycling computer only, Polar has the CS600, which has all the above functions but is for cycling only.
A cheaper variant is the Vetta V110HR, but with its lower price comes also a little frustration in the way everthing works, batterie life is short, product is not always functioning like it is supposed to….. so try it if you want, but i’d invest a little bit more and go for the bigger producers like polar or maybe suunto in the future.
For alternatives, you have GPS systems which are able to measure almost everything except the pedal frequency. Polar supplies the RS800 G3, which uses GPS to measure speed, distance, altitude etc. but I wouldn’t recommend it for cycling.
Other manufacturers supply mainly GPS receivers in watches etc. and are not fully cycling minded. So no power/pedal output or cadence metering.
Since GPS is getting more and more integrated in everything thats has to move and locate it self. I would’nt be suprised if the big comapny’s integrated it in their new upcoming lines of outdoor watches/cycling computers.
Stay tuned and if you find anything worth while, post it in the comments.