S70 connectivity issues iphone

I have just upgraded to an S70 but am experiencing connectivity issues with my iPhone that I didn’t (and still don’t) see with my fenix 6 pro.

One of my watch faces needs to be connected to pull appropriate data. Again this works seamlessly with the fenix 6 pro but now with the S70.

I have gone through the troubleshooting pages and enacted all the suggestions but still no luck. My watches firmware and phones software is up to date. I have also tried separately having the Golf app, the Connect app or IQ app open with the others closed, and all manner of combinations, but nothing works. It appears to drop the Bluetooth randomly every few minutes even if it’s right next to phone. 

I do occasionally get an error code on the garmin saying Bluetooth error 2 and if I swap watch faces this seems to reboot the connection and data gets pulled through again. 

I contacted Garmin and they said it’s apples issue. I contacted Apple and they says it’s Garmins…..

Is anyone else experiencing similar issues?