Is a sports watch really necessary?

Much of this depends on personal opinion. It's not that people can't exercise without sports watches. Sports watches are only used as auxiliary products to assist us in more scientific exercises and allow us to experience better exercises.    

It can remind you of your exercise time, it will not make you over-exercise, and it can also remind you to exercise regularly so that it will not pose a threat to your health.

Is a sports watch really necessary?
 
Monitoring exercise data, timing, step counting, and heart rate measurement, whether for professional runners or ordinary gamers, can still improve the training effect, and can be adjusted according to the monitored data.

Is a sports watch really necessary? For most athletes, sports watches are necessary,This is just looking at everyone’s thoughts. I think it can remind me all the time and let me do enough exercise every day. Without it, my life might not be so perfect.