I have an issue with my Galaxy S21 Ultra as well. My Jabra Bluetooth headphones, which work great on all my other devices, have choppy audio when doing calls. Listening to music is fine but as soon as a do a two way conversation I get the choppy audio. It sounds choppy like having your sound card set to a wrong sample rate. My Garmin watch disconnects quite often as well. Didn't have that issue with my old S20 Ultra. These same Bluetooth headphones worked perfectly with my S20 Ultra.
... View more