I am planning to spend some Christmas money
on a Garmin. What I really want is a heart rate monitor. But I really want to be able to log my HR data easily, and a 500 or 800 offer this in conjunction with other inputs that allow easy ride data analysis, so that I can more effectively use this information in the completion of my training plans. Compatibility with power meters is a plus.
What I am struggling to decide is 500 vs 800????
Does the map utility justify extra cost and size of unit? Size does matter, as I want to log race data too, and wonder whether I will find the bulk/weight of the 800 an annoyance.
Any thoughts?
Oh and if anyone has been shopping around for these two units, any bargain pointers gratefully welcomed!

What I am struggling to decide is 500 vs 800????
Does the map utility justify extra cost and size of unit? Size does matter, as I want to log race data too, and wonder whether I will find the bulk/weight of the 800 an annoyance.
Any thoughts?
Oh and if anyone has been shopping around for these two units, any bargain pointers gratefully welcomed!