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. Whether you choose a physical SIM or an eSIM ...

If you’ve ever upgraded your phone, you likely know what a SIM card is and what it’s for. In short, a SIM card is a small chip that lets you connect to your carrier’s network. These days, physical SIM ...

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 ...

The way we connect our phones, tablets, and smartwatches to mobile networks is changing. eSIM technology, short for embedded subscriber identity module, is steadily replacing the traditional plastic ...