Activating a SIM for an iPhone 4. When you purchase an iPhone 4, your cellular provider will give you a new micro SIM card to use with your new iPhone.

The primary advantage of e-SIM is its digital nature. Unlike physical SIM cards, which are small, removable chips, e-SIM cards are embedded in the device and can be activated through software.

Travel has become so much easier to plan, but staying connected abroad is still a headache. You land full of excitement, but ...

Before activating a number with the service provider, make sure your phone is compatible with the network. If you purchase one from Boost Mobile, that shouldn’t be a problem.

Take a SIM from any currently-activated Verizon device, throw it in the Nexus 7 LTE, and it will have data access.

Ready SIM collects no personal data and expires within days of activation.

The reason for activating a SIM card lock is due to SIM phishing. Scammers use SIM phishing, also known as SIM swapping, to gain access to your SIM card and control your mobile device.