As vacation season looms, now is as good a time as ever to bite the bullet and become familiar with a smartphone feature that many of us have ignored for years: the eSIMmega swerte, the digital version of the SIM card that carries your phone number.

Among many benefits, eSIM technology is a boon for travelers, and pretty soon we will all be using it because the physical SIM card will be no more. Let me explain.

Last year, Apple eliminated the SIM card tray from the iPhone 14 to free up space. That means the SIM card, which acts as a key that connects your phone with cellular networks, is being phased out for Apple phones.

Where Apple leads, others typically follow, so you can expect handset makers like Samsung and Google to also go all-in on eSIM — a digitized SIM card embedded into the phone’s computer chip that you can activate with any cellular network’s service plan.

“Whether we like it or not, it’s coming,” Roger Entner, a telecom expert and founder of the research firm Recon Analytics, said about eSIM technology.

But this move isn’t really all about Apple. The Federal Communications Commission also favors eSIM technology, because it makes it easier for people to switch to a different carrier by using software instead of going to a store for a physical SIM card. And the technology has security benefits: If your phone is stolen, thieves can’t remove an eSIM to hijack your phone number and commit identity theft, as they could with a physical SIM card.

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