How to set default call audio output to earpiece when connected to bluetooth? My phone is connected with a bluetooth watch. Which has in built speakers. I can make and receive calls from my watch. Now whenever I receive a call my call audio output is sent to my watch speakers. After picking up the phone I can change it to receive output to my phone's earpiece but this is annoying to do everytime I receive a call. Is there a way to force my phone not to transfer incoming call audio to bluetooth?

P.S. I can disable Phone Audio from my bluetooth profile but then I am not able to make calls or see who is calling me from my watch.
I was in need of doing this exact thing today. I was forced to figure it out on my own after I couldn't find an answer online. As it turns out, it's easier than I expected.

Open your bluetooth settings, find your device, and click the settings icon for that device. You should see some options for the device. Uncheck the "Phone audio" option.