Ladies and gentlemen, what is the one that looks like an electronic watch on your hand and seems to be doing something when you exercise to lose weight?
Heart rate watch, used with heart rate band, should detect whether the athlete's heart rate is too fast or too slow, which will reduce the weight loss effect. Some advanced points also have GSP positioning function, which can accurately measure the mileage, speed and so on of runners. Is there a watch with heart rate function and only GSP positioning function? But what you said should be a heart rate meter, which is used to measure heart rate! I hope my answer can help you!