Sharing via an iOS device
Sharing via an Android device
https://support.withings.com/hc/zh-cn/sections/6215968652817-Sleep-%E7%BE%8E%E5%9B%BD
https://support.withings.com/hc/zh-cn/sections/4411162567185-Tutorials-%E4%BB%85%E9%99%90%E7%BE%8E%E5%9B%BD