The Fitbit Surge GPS/heart rate monitor smart watch, because it can be “always on,” gives you some additional data like resting heart rate that other monitors can’t, unless you wear the chest strap constantly. While the accuracy is contested, trendlines sh

The Fitbit Surge GPS/heart rate monitor smart watch, because it can be “always on,” gives you some additional data like resting heart rate that other monitors can’t, unless you wear the chest strap constantly. While the accuracy is contested, trendlines should be revealing. © Cyclocross Magazineundefined