Are iPhones CDMA or GSM?

Related questions

1. What does GSM unlocked vs fully unlocked?
2. Will an unlocked GSM phone work on Verizon?
3. Can a phone be locked after being unlocked?
4. Should international CDMA be on or off?
5. Are there unlocked CDMA phones?
6. Can you use a CDMA phone on a GSM network?
7. Does GSM unlocked work internationally?
8. Can I just put my SIM card in an unlocked phone?
9. Do unlocked cell phones work with any carrier?
10. Is Verizon a GSM or CDMA network?

Tags

1. #while
2. #capabilities
3. #iphone
4. #always
5. #sprint
6. #mobile
7. #models
8. #generally
9. #verizon
10. #though
11. #online
12. #assume