Originally Posted by
TimothyH
That's what I tell myself too. This thing can't be accurate, it reads too high!!! Ha ha ha....
Seriously, are you basing your decision that the Vivoactive is inaccurate on the formula 220-age or some other generic formula?
These generic formulas can themselves be wildly inaccurate. One person's max can be 190 while another at the same age and weight can be 170. I would not use any of these formulas if that his what you are doing.
-Tim-
I based the HR on what the older pulsar read the previous 3 months with basically the same effort and I stopped and checked it with my watch while riding. I like the Garmin but it is sometimes very inaccurate.