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South Korea eSIM 2026: mobile data in Seoul, prices and setup

2026-11-03 · goAFK
Short answer
  • South Korea eSIM from $1.70; 5 GB / 15 days $10.72; unlimited 7 days $34.12.
  • Install at home; the plan starts when you connect at your destination.

Mobile data in South Korea

Korea has fast coverage almost everywhere, including the Seoul metro. A travel eSIM connects to KT and SK Telecom right after landing at Incheon. Install Naver Map or KakaoMap and Kakao T before you go.

South Korea eSIM plans

PlanPrice
1 GB · 7 days$2.51
3 GB · 7 days$6.77
5 GB · 15 days$10.72
10 GB · 30 days$17.34
20 GB · 30 days$30.56
Unlimited · 7 days$34.12
Unlimited · 15 days$53.91
Unlimited · 30 days$75.46
goAFK prices from our catalog on 2026-11-03.

How to install

  1. Scan the QR code at home on Wi-Fi: iPhone — Settings → Cellular → Add eSIM; Android — Settings → Connections → SIM manager.
  2. Keep your home SIM: bank SMS keep arriving on it.
  3. After landing, pick the eSIM for mobile data and turn on data roaming for it.

Tips before you go

  • A week in Seoul with maps, translator and messaging usually needs 3–5 GB.
  • Install Naver Map or KakaoMap and Kakao T before you go; they need mobile data.
  • Going on to Japan or China? Compare with the 15-country Asia plan.

FAQ

How much is an eSIM for South Korea?
From $1.70; 5 GB / 15 days $10.72; unlimited 7 days $34.12.
Does Google Maps work in Korea?
Only partly: walking and driving directions are limited. Naver Map or KakaoMap work better.
Do I need a passport or ID to buy it?
No. A travel data eSIM is bought online without documents.
When does the plan start?
When the eSIM first connects to a network at your destination, not when you buy or install it.
Can I keep my own number?
Yes. Your home SIM stays in the phone for calls and SMS; the eSIM handles mobile data.
What if I run out of data?
Top up the same eSIM from your profile; no new QR code or reinstall is needed.
See South Korea eSIM plans