A guide to SIM cards, the small chips that connect your phone to a cellular network

A SIM card, or subscriber identity module, is a small card in your cellphone that lets you place phone calls, send text messages, and more.
CNET

Physical SIM Card vs. eSIM: What Sets Them Apart and Which Should You Choose?

These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another.
PC Magazine

Physical SIM Cards Are Gone. Here's How to Add an eSIM to Your iPhone 16

Apple removed the physical SIM slot for the iPhone 14, 15, and 16 in the US. If you're travelling out of the country or need a separate work line, here’s how to get connected using an eSIM. Lance is ...