dllach Member

http://swimovateusa.com/products/swimovate-poolmate-heart-rate-watch I do like mine . Does a lot more than track heartrate (laps, stroke analysis), but just swimming - not good for any other activities at all.. I've recently changed over to a vivoactive since it tracks other activities, steps etc and connects to my phones…

Agree with the above posters, any method of measurement you're using will be an estimate only and is not accurate to the degree you're assuming. but here is a nerdy way to think about it: Very strictly hypothetically speaking, even if there was a way of obtaining accurate data, you're talking about percentages, so if you…