Polar Hrm...do I need the VO2 max test?
I am trying to decide which Polar HRM to buy. I had it narrowed down to the Ft7 versus the Ft4 and knew the main differences there were the amount of storing the 7 has over the 4. Then I remembered that some of the hrm's have the VO2 max test. I realize that the VO2 max test is going to allow for more accurate results, but…
