I was pleased earlier this innovation finally unbelted watch. Beyond its good battery life for several days a week without recharging view, a relative good detection, I see more and more loss of heart rate. In fact, no loss but false frequency when you move or sweat too. Me being developed crossfit lately, which is a compromise between cardio and weight training, the watch'm not and instead show me a cardio and intense frequency, it shows me just 80 bpm or around. Although I have tried everything, tighten max, wipe perspiration under the wrist. Disappointed. This watch works perfectly without moving the wrists, and without it gets too hot. So I would put that 3 stars in the final.
