Watch is connected but calls and notifications don't work

Dear All,

I have just bough a garmin vivomove HR (a quite old model) and I connected successfully to my motorola smartphone running android 14. I can see the steps syncing nicely with the app. I can even use the find my device without any problem. However, and this is driving me crazy, when I receive calls of whatsapp messages I don't get these sent to my watch. Can you help me please? 

Many thanks!