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 ...

Apple has made the iPhone XR available SIM-free in the United States, allowing customers to purchase the phone unlocked and unassociated with any carrier. Customers can then choose to obtain a 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 ...

While most people manage quite well with a single SIM card, if you want better demarcation between your work and home life, or you want to make roaming with multiple SIM cards easier, then having the ...

Apple has made the SIM-free variant of the iPhone Xr available from its web site. The phone ships unlocked and without service from any wireless carrier. People who buy the phone will need to use an ...

After beginning the iPhone XR teardown process yesterday, iFixit has now shared its full inside look at the device. The site prefaces its teardown by saying that if you’ve been wondering what happened ...