SIM cards and eSIM in South Korea
SIM cards and eSIM in South KoreaWhich carriers matter, what buying a SIM involves, and when an eSIM is the smarter move.
Mobile internet eSIM Best option when traveling
Guac
RecommendedReliable mobile internet at better prices than most travel eSIMs, with polished iOS and Android apps and support for making and receiving phone calls.
Airalo
One of the biggest travel eSIM brands, with a very large destination catalog.
Holafly
Known for unlimited-data plans in many destinations, at a higher price per gigabyte.
Buying a local SIM card ID registration required
- Bring your passport; the seller registers the prepaid SIM during activation.
- Starter prices begin near $11-22; compare the current data allowance before buying.
- Airport counters and city carrier stores are the easiest places to buy; confirm activation before leaving.
- Airport prices are usually higher than city or online prices.
- Tourist eSIMs are available; check whether the chosen plan includes a local phone number.
Google Maps has limited navigation features here; use Naver Map or KakaoMap instead.
Local carriers
KT
Tourist-friendly choice with a straightforward purchase process.
SK Telecom
A solid alternative; compare current prepaid offers before buying.
LG U+
A solid alternative; compare current prepaid offers before buying.
Frequently asked questions
Do I need my passport to buy a SIM card in South Korea?
Bring your passport; the seller registers the prepaid SIM during activation.
Should I buy a SIM card at the airport in South Korea?
Airport prices are usually higher than city or online prices.
What is the best eSIM for South Korea?
Guac eSIM covers South Korea with data plans starting from $0.58 per GB and instant activation, so your phone is online the moment you land. Airalo and Holafly are popular alternatives.