The fundamental purpose of people's fitness exercise is to make themselves healthier, more beautiful and more comfortable. There are various forms of sports, such as running, swimming and cycling. You can choose according to your physical condition and personal preference.

Choosing a fitness method that suits you is the first step to strengthen your body. More importantly, fitness activities must be kept within a suitable intensity range, so that the exercise effect can be the best and there is enough safety to prevent excessive intensity from causing harm to your body.

Heart rate monitoring can quickly and clearly reflect your body information during exercise according to your exercise intensity and activity, and can feedback the change of heart rate during exercise to us, so as to avoid physical injury caused by entering dangerous oxygen-free areas. At the same time, it can keep the exercise intensity at a suitable level and make the fitness effect better.

The research results of sports medicine prove that heart rate is the most important index of exercise amount and intensity.