Apple Watch series 7
Does Apple Watch series 7 GPS from US to work in India?
Question marked as
The GPS models work anywhere your iPhone works.
If you do not get your Apple Watch in your own country, you may have to return the Apple Watch to the country where purchased to get warranty service.
If you do not get your Apple Watch in your own country, there may be country specific restrictions in the installed Apple Watch software that prevent features from working when you get home.