What's the difference between Apple watch first generation and Series 1?

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Tags

1. #water
2. #except
3. #built
4. #models
5. #apple
6. #includes
7. #processor
8. #increased
9. #display
10. #watch
11. #generation
12. #features
13. #offers
14. #resistance
15. #brighter
16. #faster
17. #along
18. #series