Is it possible to change carriers with a SIM or are you locked in to a carrier when you buy the iPad?
So..just making sure I understand this correctly I can buy any iPad air (WiFi & Cellular) on Friday and change to a different carrier (AT&T or Verizon or Sprint) later?
Depends on the specific model of iPad. Some are CDMA only models (e.g. Verizon iPad 2) and a SIM isn't relevant. iPad Air appears to be one model for all. Specs are available for you to refer to online.Is it possible to change carriers with a SIM or are you locked in to a carrier when you buy the iPad?
You can't make broad generalizations like that. Again, depends on the specific model. Some are GSM or CDMA. Some are both. Check the specs.I'm confused. If cellphones are either GSM or CDMA for their cellular service, why aren't iPads?