Wait if You're Worried About Problems
Are you worried about being a guinea pig for a new Apple Watch? If you don't want to deal with problems on the Apple Watch or with software, you should wait.
Apple's been testing watchOS 6 for months, so this isn't completely new, but it will be the first time this hardware and software are out in the wild. This combination often leads to some growing pains.
While Apple will likely fix these with a quick watchOS 6.0.1 or watchOS 6.1 update, it could be annoying for early adopters during the first week or two with the new Apple Watch.
Simply put, waiting a few weeks could result in fewer headaches and a smoother overall experience.