Hi,
While I'm very satisfied with the call quality, I was extremely disappointed to learn that the handsfree feature only works with regular old phone calls, but not with calls using any other communication app.
I see that the watch identifies as a handsfree device in android bluetooth settings, but it's not connected all the time (probably to save battery). This means the watch doesn't even show up as an audio device during Signal calls etc.
Handsfree was basically the reason I upgraded from the Tactix 7, and I almost exclusively make calls using other apps than the standard dialer..