A:Answer+cellular means you go to your phone carrier and activate it so you can use it outside of your home. Without the cellular you would only use it in the house with WiFi.
A:AnswerEvery iPad Air comes with one year of hardware repair coverage through its limited warranty and up to 90 days of complimentary technical support.
A:AnswerEvery iPad comes with Safari pre-installed so you can browse the web, and access the internet. A WiFi or cellular connection required to access the internet.