To switch from one iPhone to another, you should back up everything to your iCloud account and then restore it on the new iPhone.

If you need to find out your iPhone's carrier without a SIM card installed, you can do so through the Settings app.

A SIM card, or subscriber identity module card, is essential component of any phone. It connects your device to a cellular network and stores vital information, including your phone number. Many ...

A dual-SIM setup lets you use one phone to make and receive calls and texts from two numbers. It's also super convenient and can save you serious cash when traveling. We show you how to use two SIMs ...

The newer eSIM technology, which is quickly becoming the standard on high-end phones, is safer and more convenient.