eSIM

Travel eSIM for South Korea — Plans & How to Use (2026)

Go365 · 2026-06-24

Traveller using a South Korea eSIM checking in at Seoul

When you travel to South Korea and have signal the moment you land at Incheon, everything gets easier: book a ride, check the map to your hotel, snap photos in Seoul, Busan and Jeju. That is why a Korea eSIM is increasingly preferred by Vietnamese travellers over a paper SIM or pricey roaming.

Why choose an eSIM for South Korea?

Choose a Korea eSIM by trip length

Go365 offers many data sizes and validity periods for Korea eSIMs, from short 3–5 day trips to two-week stays. Suggested by need:

Data sizes and prices change over time; see the latest on the plan page below.

How to install a Korea eSIM

Buy a plan and receive the QR code by email.
Scan the QR while still in Vietnam (on Wi-Fi) to install the profile.
On arrival in Korea, turn on Data Roaming for the eSIM and you are online.

Step by step: how to install & activate an eSIM. New to eSIM? Read the complete eSIM guide.

Tips to save data in South Korea

Buy a Korea eSIM

Pick the plan that fits your trip, receive the QR instantly and be online the moment you set foot in the land of kimchi.

👉 See Korea eSIM plans at Go365 | All eSIM destinations

Câu hỏi thường gặp

Which network does a Korea eSIM use?

Korea eSIM plans connect to Korea's major carriers (such as KT, SKT, LG U+), so coverage is strong in Seoul, Busan, Jeju and most tourist spots.

For a 5–7 day trip to Korea, how many GB should I buy?

If you mainly use maps, social media and messaging, about 1–2GB/day is comfortable. If you watch a lot of video or livestream, choose a higher-data or unlimited plan.

Can a Korea eSIM make phone calls?

Most plans are data-only. You can still call and message for free via Zalo, KakaoTalk or Messenger over 4G/5G. If you need a local number, choose a plan that includes voice.

Do I need to register with my real name to buy a Korea eSIM?

No. A travel eSIM bought through Go365 does not require real-name registration like a local SIM; you just scan the QR and go.

When should I activate a Korea eSIM?

Install it (scan the QR) in Vietnam, but only turn on data roaming once you land in Korea so the plan starts counting its days at the right time.