Do you have SIM cards?

Why this spelling

This romanisation is not the spelling copied letter by letter. It is built from the National Institute of Korean Language’s Revised Romanization, which writes what the word sounds like once the sounds next to each other have changed it.

When you would say it

유심 is the everyday word for a SIM here, and it covers eSIM in conversation too. Works at an airport counter or a phone shop.

First, decide whether you need a Korean number

Every counter and every website leads with data. Data is the easy part, and you’ll have it whatever you pick. The question that shapes your trip is whether what you buy comes with a Korean number attached, because a number is what lets anyone reach you: a guesthouse host, a clinic, a driver holding the bag you left in the trunk.

From the same chapter

Staying Connected

Card number 74 of the book

The guidebook prints these as numbered cards, so you can hold up a number instead of trying to pronounce it. The Korean edition comes with it and has the same numbers in the same places.

See the guidebook