Iphone X not connecting to Samsung Gear S3
I just purchased the IphoneX as an upgrade to my Iphone 7S Plus (which I had attached via bluetooth to my Samsung Gear S3). I attempted to attach the IphoneX to the watch via bluetooth. When I attempt to pair it, I can see the Samsung Gear S3. When I tap the device on the phone to connect, it shows 'Connected' but then immediately falls back to 'Not Connected'. I never had this issue with the Iphone7S Plus. Any assistance would be greatly appreciated.
iPhone X, iOS 11.4, Bluetooth Pairing