A SIM card, or subscriber identity module card, is essential component of any phone. It connects your device to a cellular network and stores vital information, including your phone number. Many ...

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 explain ...

If your new phone no longer supports SIM cards, or you don't want to use them anymore, you can convert to eSIM instead.

Apple has had support for eSIM since the iPhone Xs/XR, but it has gone all in by ditching the physical SIM card slot for iPhones from version 14 and later sold in the U.S. While models sold in other ...

You're probably already familiar with the SIM card, a tiny chip in your phone that connects it to your cell phone carrier of choice. For years, this chip was on a physical card that you could swap in ...

Rumors in recent years have said that the iPhone would abandon its physical SIM card in the US. Apple did just that with the iPhone 14 series. Rather than a SIM card, the US versions rely on eSIMs ...

The digital version of the SIM card, included on many newer phones, is set to become prevalent. It also offers affordable cellular data abroad. By Brian X. Chen Brian X. Chen is The Times’s lead ...