The best heart rate is 1 10- 130 beats/min. If you can use time to measure your heartbeat in general outdoor sports, it will be a bit troublesome, so I recommend it.

Treadmill

Or fitness equipment, a treadmill in Qiao Shan,

Exercise bike

Elliptical Machine

Everyone has a heart rate monitor, so it is convenient to touch that heart rate sensor to see your heart rate at any time.