Staying Connected in Korea
Map apps, taxi apps and translation all need data, so sort this out before you leave the airport.
Your options
| Option | Best for | Things to know |
|---|---|---|
| eSIM | Most travelers with a recent phone | Buy online, install by QR code, no shop visit. Your home SIM can stay in for calls/SMS. |
| Physical SIM | Older phones without eSIM | Pick up at an airport counter. Some plans include a Korean phone number. |
| Pocket Wi-Fi | Groups sharing one connection | One device for several people, but it needs charging and you must stay together. |
| Home roaming | Very short trips | Easy, but often the most expensive. |
Data-only or with a Korean number?
Most visitors only need data. A Korean number helps with some local apps (restaurant tablets, delivery apps) that send a code by SMS. If you plan to use those, choose a plan with a number.
Setting up an eSIM
- Check your phone supports eSIM and is carrier-unlocked.
- Buy before your trip and install the profile while on Wi-Fi at home or the airport.
- Turn the eSIM on and enable data roaming for that line when you land.
- Set it as your mobile data line; keep your home line for calls if you like.
Tips
- Free Wi-Fi is common in subways, cafés and hotels, but it is not enough for maps on the street.
- Unlimited plans may slow down after a daily limit — check the plan details.