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.

Although cell phones have changed significantly in the last few decades, they still need a SIM. Some phones have moved to eSIMs, but many still use physical SIM cards. If you have a working phone, ...

Ben Khalesi covers the intersection of artificial intelligence and everyday tech at Android Police. With a background in AI and data science, he enjoys making technical topics approachable for those ...

A dual-SIM setup lets you use one phone to make and receive calls and texts from two numbers. It's also super convenient and can save you serious cash when traveling. We show you how to use two SIMs ...

Seeing a SIM Not Provisioned error message on your Android phone can be extremely annoying. Here's what's causing it, and how ...

The iPhone Air will only have an eSim - will other phone makers also shift away from the familiar - but fiddly - plastic ...

Removing a SIM card from your phone can sometimes seem like a daunting task, but it is a relatively straightforward process that can be necessary for various reasons, such as switching carriers, ...

Many smartphone users upgrade their devices to a newer device (in India), and they tend to face SIM card issues at times after switching to a new device. This is because, if you do not activate a few ...