https://blog.wongcw.com/2020/09/15/fitbit%e7%9a%84sense%e6%99%ba%e8%83%bd%e6%89%8b%e9%8c%b6%e7%8d%b2%e5%be%97fda%e6%89%b9%e5%87%86%e5%8f%af%e4%bb%a5%e5%9c%a8%e7%be%8e%e5%9c%8b%e4%bd%bf%e7%94%a8%e5%bf%83%e9%9b%bb%e5%9c%96%e6%87%89/