[mothered]

I think a good rule of thumb (or finger, or toe) is if none of the device's primary functions require being connected to the internet you are good to go. That is to say that if one of the devices functions simply will not work without being connected to the internet then it is at risk. @mothered would you say that is accurate ?

if none of the device's primary functions require being connected to the internet you are good to go.

^ Spot on.

It's Impossible to be Identified/tracked as a standalone unit without an active connection.

Do you think Samsung watch 5\5 pro could be blocked?

Blacklisting Is not device-specific.

Any device that's capable of being blocked, Is of risk.