Hi, @TaroKunLife , you may be able to get help resolving your frustrations with your Pixel watch by having a look here: https://support.google.com/googlepixelwatch/community?
Alternatively you should be able to get help with the iPhone app for Fitbit by posting a question in the Fitbit iPhone app forum: https://community.fitbit.com/t5/iOS-App/bd-p/ios
There is always someone here to help!
Sense, Charge 5, Inspire 2; iOS and Android