eSIM South Korea
66 eSIM packages
Overview South Korea sits on the southern half of the Korean Peninsula, bordering North Korea to the north and facing Japan across the strait. Its capital, Seoul , is one of As...
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eSIM South Korea
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South Korea sits on the southern half of the Korean Peninsula, bordering North Korea to the north and facing Japan across the strait. Its capital, Seoul, is one of Asia's leading smart cities with a population of over 10 million. South Korea is famous for the Hallyu cultural wave (K-pop, K-drama, K-beauty), bold cuisine, and a harmonious blend of ancient palaces and ultra-modern skyscrapers.
- Language: Korean (Hangul). English is fairly common in central Seoul, Busan and at Incheon Airport.
- Currency: South Korean won (KRW, ₩). 1,000,000 VND ≈ ₩56,000.
- Time zone: GMT+9 (2 hours ahead of Vietnam).
- Power outlet: Type C, F (two round pins), 220V / 60Hz. Compatible with most Vietnamese devices — no adapter needed.
- Visa: Vietnamese travelers need a Korean visa, or are visa-exempt for transit through Jeju Island.
South Korea has one of the best telecom infrastructures in the world, with three major operators: SK Telecom, KT (olleh) and LG U+.
- 5G: South Korea was the first country to commercialize 5G (2019). Wide 5G coverage in Seoul, Busan, Incheon and Daegu, with peak speeds over 1 Gbps.
- 4G/LTE: 100% coverage, including deep subway lines, tunnels, and Jeju Island.
- Free Wi-Fi: Available almost everywhere in public areas — subway, parks, cafés.
- KTX trains: Free Wi-Fi on high-speed trains plus stable 4G/5G throughout the journey.
The South Korea eSIM works from Seoul to Jeju, including the DMZ area and smaller islands.
- Seoul — Gyeongbokgung Palace, the historic Bukchon Hanok village, the Myeongdong and Gangnam shopping districts, and N Seoul Tower on Namsan.
- Busan — The country's second-largest coastal city, home to Jagalchi fish market, the colorful Gamcheon culture village and Haeundae Beach.
- Jeju Island — "Korea's Hawaii", with Hallasan volcano, golden canola fields and volcanic-rock coastlines.
- Gyeongju — The ancient Silla capital, with Bulguksa Temple and Seokguram Grotto (UNESCO heritage).
- Pyeongchang — A famous ski resort and host of the 2018 Winter Olympics.
- Payments: T-money is a transit + payment card sold at any convenience store (CU, GS25, 7-Eleven). International credit cards work everywhere.
- Subway: The Seoul Subway has 23 lines — the Subway Korea or Naver Map apps navigate better than Google Maps here.
- Food: Don't miss Korean BBQ (samgyeopsal), kimchi, bibimbap and tteokbokki. Themed cafés are everywhere.
- Etiquette: Don't stick chopsticks upright in rice, don't tip, and let elders pour drinks first.
- Tax refund: Spend over ₩30,000 at "Tax Free" shops to claim VAT back at departure.
With the world's fastest 5G and a busy multi-city itinerary, an eSIM in South Korea lets you use KakaoTalk (the dominant messaging app), navigate via Naver Map (Google Maps is limited here), call a Kakao Taxi and book KTX tickets. The connection switches on the moment you land at Incheon or Gimhae — no SIM swap, no kiosk lines.
Benefits of buying from eSIM Duhy
Before you buy
$36,900
Why choose eSIM Duhy?
Instant delivery
Get eSIM via email, scan QR to install, ready to connect on landing.
No hidden fees
Prepaid plans, no roaming charges. Use Zalo, Telegram, Messenger freely.
Wide coverage
Fast, stable network everywhere with top local carriers.
24/7 support
Multi-channel technical support: Hotline, Zalo, Email.
What customers say
Thousands of customers trust our eSIM service
"First time using eSIM and I'm truly impressed. No need to visit an airport telecom counter, just scan the QR code for instant high-speed Internet. So convenient!"
Thanh Ha
Hanoi
"Traveled with friends, setup was simple, stable network everywhere. Especially convenient for sharing WiFi hotspot. Great value for the quality."
Minh Anh
Ho Chi Minh City
"Frequent business traveler who's tried many solutions. eSIM Duhy is optimal — fair pricing, fast speeds, 24/7 support is very responsive."
Duc Tri
Da Nang
Frequently asked questions
Common questions about travel eSIM for South Korea
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How to use eSIM
Choose an eSIM plan
Find your destination and select a data plan that fits your needs.
Make payment
Pay securely via VNPay. Receive your activation QR code via email in 5 minutes.
Connect & enjoy
Scan the QR code to install eSIM, enable data roaming and enjoy high-speed internet.
