https://blog.wongcw.com/2021/08/03/apple-watch-7-%e7%b3%bb%e5%88%97%e5%87%ba%e7%8f%be%e5%9c%a8%e7%9b%a3%e7%ae%a1%e6%aa%94%e4%b8%ad-%e5%8f%af%e8%83%bd%e5%9c%a89%e6%9c%88%e7%99%bc%e4%bd%88/