I’ve had the watch for nearly a week (6 days) and continue to have the same problems.
Steps are 1000s short of actual activity. I can walk for hours without recording a single step on the Wyze watch while my Oura ring and Hband watch have no problems.
The only notifications reported are phone calls. All others are allowed.
Sleep data reported on the app does not correspond with that reported on the watch. The data on the watch is more accurate than that on its application but differs from that reported by the Oura ring, Hband watch, and ResMed sleep monitor. I don’t expect exact correspondence but something somewhat similar.
Wyze data is reported on the Google Fit application. I don’t think that the Watch is defective but I do suspect that the app and the firmware needs work.