SIM cards, or Subscriber Identity Modules are required to identify every GSM phone, regardless of the system. They also contain account, data and payment parameters to tell the selected carrier the ...

Just book your dream vacation overseas? The next step is to avoid costly roaming fees by getting an affordable international sim card for traveling. When traveling overseas, it’s critical to have a ...

After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

Google on Monday announced that you can now purchase a Google Fi SIM card from over 500 Best Buy locations. This is the first time that Google's online-only wireless carrier has a retail presence. The ...

SIM cards for Google Fi, Google's own Wi-Fi-first phone network, will now be available in over 500 Best Buy locations, Google announced Monday. Launched to the public in 2016, Google Fi has mostly ...

AlwaysOnline Wireless’s Global Data SIM promises cheap 4G LTE data in more than 90 countries. There are several companies offering similar products, and on the surface it’s a great idea: replace your ...

SIMs offer faster activation, better security, and easy travel SIMs, but drawbacks include harder transfers, carrier limits, and compatibility issues.

Have you ever wondered exactly how a SIM card works? We’ll help you understand why your phone needs one and what they do to keep you connected. Image: TalkAndroid Editorial Note: Talk Android may ...

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 ...