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Red Pocket Mobile (2)

The iPhone 13: The Definitive Guide

The iPhone 13 was first announced in the middle of September 2021 and launched on September 24 of the same year. Since it hit retailer shelves, the iPhone 13 has been an incredibly popular Apple handset model, offering several significant improvements over its predecessor, the iPhone 12, along with a few different models, including the iPhone 13 Mini and the iPhone 13 Pro/Pro Max.

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What Is a SIM and How Do They Work?

Key Takeaways

  • A SIM card identifies you to your carrier's network, which is what lets your phone make calls and use data.
  • It stores far less about you than people assume, mainly identification numbers and security keys rather than personal details.
  • eSIM is now the default on many new phones rather than an emerging option, and the newest iPhone models have no card slot at all.

Your Subscriber Identity Module (SIM) card is a little chip that slots into your phone and lets you access your cellular network. On the front, it features a small gold computer chip encased in plastic, while the back shows the manufacturer's logo.

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