https://blog.wongcw.com/2022/04/30/%e6%b6%88%e6%81%af%e7%a8%b1pixel-watch%e5%85%a7%e7%bd%ae300mah%e5%ae%b9%e9%87%8f%e9%9b%bb%e6%b1%a0%e6%9c%89%e8%9c%82%e7%aa%a9%e7%b6%b2%e7%b5%a1%e6%ac%be/