What's the difference between a phone case and skin?

Related questions

1. What is the toughest phone case?
2. Is otterbox the best phone case?
3. What is a TPU cell phone case?
4. What does TPU mean?
5. Is TPU material biodegradable?
6. Is TPU bad for the environment?
7. Is Eva safer than PVC?
8. Is silicone a good phone case?
9. Why is clear caulk yellow?
10. Does TPU have BPA?

Tags

1. #similar
2. #design
3. #phone
4. #device
5. #protection
6. #maintain
7. #comes
8. #surfaces
9. #protects
10. #unsightly
11. #accidental
12. #damage
13. #helps
14. #scratches
15. #against
16. #slightly
17. #shape