For some reason when opening smartthings app on Watch4 it says : More controls are aviable on your phone....then press the button to take you to your phone!!? 😆
Make sure your running the latest version of SmartThings app. Some device like lights and switches etc will work direct from your GW4 some devices like nest thermostat will require phone interaction.
Thank you, I already did as you suggest, it works now with favourites. For some reason it worked better with my previous Samsung watches (Frontier 3 and watch 3)