There's been a great deal of focus by Samsung in regards to how their products all seamlessly work and communicate with each other. However, I find it strange that we don't have the option to ring our smarttags using smarthings through our Galaxy Watch 4.
We asked the developers about this one for you. They've advised us that they'll be on the look out to see if more users would like this feature before considering introducing it - so I'd encourage anyone else out there who would like the feature to say so in this thread. 🙂