Request for device backup

Hi,  I would like to backup my whole Vivoactive 3 (parameters, faces, apps, widgets with all their respectives settings) watch in case of problems like losing it or breaking it. It would then be possible to fastly recover everything in the replacement watch. If possible, I think that making possible to use that backup for even a new watch upgrade. For example, if I'm switching from my Vivoactive 3 to a Fenix 6, every faces, apps and widgets that are compatible could simply be recover on the new watch with every parameters already set by the user.