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

As mobile devices become central to digital identity, cybercriminals are adopting new ways to steal personal data. One such method is SIM card swap fraud, where attackers trick mobile operators into ...

You don't need a SIM card and cellular service to use most features of today's iPhones and Android phones. Most apps and services run just fine as long as you have access to WiFi, and you can even set ...

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.

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 ...

Are you looking to get one of Google’s new smartphones? SIM support and compatibility have become a bit confusing over the last few years, so you may be wondering exactly how the Pixel 9 series ...