Yes they will! One of the positives (and negatives) about Amazfit devices is that they do play nice with other platforms but it usually requires a number of workarounds. You used to have to install some 3rd party apps to make the Google Fit connection, but as of last year it's integrated natively into their app.

Good question though! Google Fit has been my universal fitness tracking software of choice too. These days it connects with almost everything.