When you use an iPad that comes with both Wi-Fi and cellular options for browsing the web, your device will have a removable Subscriber Identity Module, usually referred to as SIM cards. According ...

If you’ve bought an iPad with 4G/cellular capabilities (we discuss whether that’s a good idea in our 2015 iPad buying guide) or a new iPhone, you need to buy and install a SIM card.Here, we ...

In the United States, the only major carriers that use SIM cards are GSM-type carriers AT&T and T-Mobile. AT&T is the only GSM carrier that sells the iPad as of early 2013.

So much for a universal Apple SIM. AT&T and T-Mobile both lock down new iPad SIM cards in their stores. The difference is a T-Mobile iPad purchased at an Apple store will remain open.

An update to an Apple support page spotted by MacRumors explains that from October 1, 2022, "Apple SIM technology will no longer be available for activating new cellular data plans on iPad." ...

Both the M4 iPad Pro and the iPad Air 6 have removed the physical SIM slot entirely. Gone are the days of physical SIMs, as all cellular models now support eSIM only.

Read along for a look at the complete iPad eSIM list for which models have the embedded digital SIM. Cellular iPads have used a variety of SIMs (subscriber identity modules) over the years.

The Apple SIM first appeared as a physical nano-SIM card in the GPS + Cellular versions of the iPad Air 2 and iPad mini 3, and went on to be supported by additional iPad models since its release ...

On the previous generation models, the cellular versions of both the ‌iPad Air‌ and the ‌iPad Pro‌ included a physical SIM card slot. In the new devices, that's no longer the case.

Apple's new M4 iPad Pro and M2 iPad Air need new Apple Pencils and Magic Keyboards and there's a SIM surprise, too, making upgrading more complicated.