I don't like the privacy policy of the Xiaomi Mi Bands. But what I found out, is that there's an excellent firewall on Android called NetGuard, and it can block

I don't like the privacy policy of the Xiaomi Mi Bands. But what I found out, is that there's an excellent firewall on Android called NetGuard, and it can block network traffic on a per-app basis. So I just block the Mi Fit app, and it doesn't seem to influence anything.