Just got this WYZE WATCH (47), too, but, having the SAME PROBLEM.
In fact, it also synced “Run” activity as “Sleep” activity in Google Fit (so turned OFF sleep function, hoping it would not happen again).
Can “Run” activity be used without taking the phone with me on the “Run.” Did not have watch attached to phone during “Run” - but, reconnected to bluetooth (AFTER the “Run”) in order to SYNC, but the activity did not show up in Google Fit. So, I had to manually enter the info into Google Fit, which completely defeats the purpose of having the Watch. I would like to go out for a run with-OUT taking the phone. But, upon returning, I want to be able to SYNC the info into Google Fit.
PLEASE FIX THESE PROBLEMS. The ability to sync exercise activity is my only reason for having WYZE WATCH.