What can a smart watch do?

Different brands of smart watches have different functions. A smart watch that I have recently paid attention to is Alpha.

One of the dynamic heart rate tests is very interesting. There is also an automatic monitoring function, which can automatically identify, record and monitor whether to run, ride, sit for a long time, sleep, walk and sit still. It is said that it took as long as 30 days, and now most watches are charged every day. Relatively speaking, my use time is still very satisfactory.