Smarthub Smart watch fitness tracker compatibility.

[Cube]

I have just had smarthub fitted to my ebike. The problem is I can't get a fittnes tracker to connect to the Cobi app on my Android phone, I've tried a Huawei 3 pro, Huawei 2 pro or Nu band pro.
Any suggestions please as to with watches work with the Cobi app please.Im trying to use the cheaper end watches/bands

 

[offthewall]

I know it doesn't help you but the Apple ecosystem works wonderfully with the Cobi.bike app and my Trek Allant+ 8S. Data goes right into the Apple Fitness and Health apps. Cobi.bike also talks to my Apple watch for heart rate info.