In my wallet, I have a little “secret” compartment which contains a few international micro SIMs, an Apple-made SIM ejection tool (aka a fancy paperclip), and a guitar pick. Or at least I usually do.

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SIM cards have been an integral yet forgettable aspect of owning a smartphone over the past few decades. For most users, the SIM card defines the basic commercial relationship they have with their ...

Your phone's SIM card allows the device to make calls, send texts, and connect to the internet. The SIM card provides a phone number that identifies your device on the carrier's network, whether it's ...