SIM cards have been an integral yet forgettable aspect of owning a smartphone over the past few decades. For most users, the SIM card defines the basic commercial relationship they have with their ...

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...

Singtel has begun issuing SIM cards that are compatible with 5G standalone networks, which the telco currently is rolling out in Singapore. Its next-generation mobile network has been deployed for ...

Do you get the error message “No SIM Card Detected” or “No SIM Card Installed” after inserting a SIM card into your phone? This problem often occurs when you ...

Need an Internet connection on the go? Unfortunately, there aren’t a whole lot of inexpensive ways to do this. Carrying a mobile network around with you is a costly investment, but it’s also one that ...

Have you ever wondered why the latest Google Pixel device doesn't have physical SIM slots anymore? Here's why Android phones ...

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 ...

Technicians in Shenzhen’s Huaqiangbei electronics market district have modified Apple’s iPhone Air to support a physical SIM ...

Apple’s iPhone Air arrived as a bold experiment, combining an ultra-thin body with several compromises to keep the design minimal.