Enduro syncing issues

I've had my enduro for a week and the bluetooth connectivity has been patchy at best. I have a Samsung phone.  The last two days I've had to connect it with the cable to my laptop  to sync data. I've turned bluetooth off and on numerous times which has worked sometimes. I've turned both phone and watch on and off numerous times. Disconnected my watch from phone and connect. Still no joy. Not sure what else to try. Any ideas?