https://blog.wongcw.com/2021/10/09/apple-watch-series-7%e7%8f%be%e5%9c%a8%e5%8f%af%e4%be%9b%e9%a0%90%e8%b3%bc-%e4%be%9b%e6%87%89%e5%9b%b0%e9%9b%a3%e5%82%b3%e8%81%9e%e6%88%90%e7%9c%9f/