Remove the device from your account by signing into connect.garmin.com > Select the picture of the gray watch on the main page after signing in to drop down your registered devices > Select the Approach R10 > Then on the next page select the gray gear icon to the right of your device name and then select the "Remove" option > This will remove the registration from your account.
When another user account becomes the owner of a Garmin device, the device registration is the only updatable option and "ownership" specifically is not an account option that can be specified.
The original user that purchased the device is the registration tied to the consumer limited warranty provided from Garmin, so gifting...selling...or the changing or registrations to another user would not transfer the warranty afforded to the original owner of the device.
