That’s a wonderful idea to develop I don’t know the specifics of Android WatchOS app development, but there’s already a mobile app for Rhasspy (Android and iOS) and there’s satellite software for constrained devices such as ESP32 microcontrollers, so a satellite app for a smartwatch definitely seems possible.
i am sadly no Programmer. I have created a Feature Request on Github for the Author of the “mobile App”. Perhaps he find this funktion usefull and take a look on this.