The iPad Air 2 has the following tech which I hope will be soon available on the iPhone.
Here's the Neat iPad Feature Apple Didn't Mention
A preinstalled data-only SIM card has been inserted into the $499 iPad Air 2, and allows users to change carriers at the tap of a finger.
Apple unveils new multi-carrier 'Apple SIM' bundled with new iPads
"And when you travel, you may also be able to choose a data plan from a local carrier for the duration of your trip," the company said.