apple watch app is black screen
I'm trying to re pair my apple watch with my iphone. I've changed services and the watch is wifi only now. The watch app just shows black screen
iPhone XR, iOS 14
Make sure the watch has charge. Instructions here > Check your battery and charge your Apple Watch - Apple Support
If necessary, restart the Apple Watch:
Press and hold both the side button and Digital Crown for at least 10 seconds, then release both buttons when you see the Apple logo.
More details in this support article > If your Apple Watch won't charge or it won't turn on - Apple Support