Apple Watch
Does it still matter which country I buy my Apple Watch in? It used to matter, for both watches and phones, but hopefully that has been resolved on the Watch as it has on the Phone.
Apple Watch Series 3, watchOS 5
Question marked as
it still matters
the usa cellular apple watch models does not work with cellular networks elsewhere because they use a different system
and features that require government approval such as ECG will not work unless both the country you reside in and the country of purchase has the feature approved.