Apple Watch is flickering green when closing activity rings.

Hello MichaMZ,

We have a few simple steps that may help to resolve the issue.

1. If you have not already done so, try to power off both the Apple Watch and the companion iPhone, and check to see if this issue resolves the problem. Often this simple step will refresh the apps and software on the device to solve numerous problems you may encounter.
   1. Restart your iPhone
   2. Restart your Apple Watch
2. If this does not help, check to make sure that the iPhone and Apple Watch software are both up-to-date. The latest version of iOS is 16.2. The latest version of watchOS is 9.2. If these devices do not show they are up-to-date, you'll want to make a backup of your device and update the software.
   1. Update your iPhone or iPad
   2. Update your Apple Watch
3. If the devices are up-to-date and still experience the problem, you'll want to reach out to Apple Support directly. You can reach them by clicking here: Contact Apple Support, or by calling them directly at the number most local to your region: Contact Apple for support and service.

We hope this information helps you out!

Kind regards!