A Chinese user managed to install a SIM card tray on an iPhone Air by embracing a hardware trade-off. Here are the details.

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

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 ...

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 ...