What's the difference between Apple Watch 3 GPS and cellular?

Related questions

1. Do all Apple Watch Series 3 have cellular?
2. Can you make calls on Apple Watch 3 GPS?
3. Can you make calls on Apple watch without cellular?
4. What is the difference between an Apple watch 1 and 3?
5. Is the Apple Watch 3 waterproof?
6. What does the blue dot on Apple watch mean?
7. Can the Apple Watch tell if you are having a heart attack?
8. Can you still get texts on Apple watch without cellular?
9. What's the difference between series 3 and 4 Apple Watch?
10. What does the water drop on Apple Watch 3 mean?

Tags

1. #models
2. #series
3. #compatible
4. #apple
5. #built
6. #feature
7. #watch
8. #subject
9. #support
10. #having
11. #cellular
12. #carrier
13. #service
14. #supported
15. #capability