not from Iphone X bluetooth setting.
Yes, thanks. This is a common mistake.
Remove the device from Connect, "forget the device in iOS BT settings, pair the device using only Connect.
Correct. I had forgotten about this. When re-pairing, do it through the Connect app. (I'm on an Samsung Note 10+.)
This! Thanks thanks a lot I was already thinking about saving for a new watch- now it works just fine!