Seoul
eSIM
The ultimate South Korea travel eSIM. World's fastest 5G on SK Telecom and KT. Instant activation at Incheon Airport.
Specs
Seoul eSIM Configuration
Choose your package
Instant delivery
1GB
3GB
5GB
10GB
20GB
Unlimited
2GB/Day
Unlimited
5GB/Day
Unlimited
3GB/Day
Ovosim vs. Other Options
Why smart travelers switch to Ovosim for Seoul.
| Feature | OVOSIM | Airalo | Your Carrier Roaming |
|---|---|---|---|
| Cost (Standard Plan) | From €6.99 | €8.99 | $10/day+ |
| Network Speed | 5G / 4G+ Priority | Throttled | Varies |
| Setup | Instant QR | Manual | Automatic |
Last updated:
How to install your eSIM
Ready in 3 simple steps.
Scan QR Code
Go to Settings > Cellular > Add eSIM and scan the QR code from our website
Label Your Line
Name it 'Travel Data'. Set it to 'Secondary' so your main number still works.
Activate Data
When you land, turn on 'Data Roaming' for the eSIM line only.
About Mobile Internet in Seoul
World's Fastest 5G: What It Actually Means for Travellers
South Korea launched commercial 5G in April 2019 — the first country in the world to do so. Ookla's Speedtest consistently ranks SK Telecom as the world's fastest mobile network. In practical terms, this means: instant Instagram and TikTok uploads, seamless 4K video calls home, and Naver Maps loading in under a second. Ovosim connects to SK Telecom and KT, the two premium carriers in this duopoly.
Seoul Subway Navigation is Non-Negotiable
Seoul's subway system is one of the world's most complex, with 23 lines and 692 stations. Even Koreans use Naver Maps or Kakao Map (not Google Maps — it has limited functionality in Korea due to national mapping restrictions) for every journey. Download Naver Maps before arrival and use Ovosim for real-time route updates. Subway stations all have excellent 5G LTE coverage on all platforms.
Kakao T: Korea's Essential Ride-Hailing App
Uber has limited availability in South Korea. Kakao T is the dominant ride-hailing app and is universally used in Seoul and other cities. You need a working data connection to book Kakao T. Activate Ovosim before landing at Incheon to have transport booked before you exit arrivals.
Jeju Island Coverage
Jeju is South Korea's most popular domestic tourism destination and has full 5G coverage from SK Telecom and KT across the island. The volcanic terrain of Hallasan mountain creates brief signal gaps near the summit, but the coastal towns, beaches, and main attractions all have excellent connectivity.
DMZ Tours: A Data Note
Guided tours to the Demilitarized Zone (DMZ) near Panmunjom operate in a military-controlled zone. Photography and data usage may be restricted in specific areas. Your eSIM works on the South Korean side but there is obviously no coverage in the North Korean zone.
Why use Ovosim for Seoul?
Instant Delivery
Scan the QR code and connect immediately.
Hotspot Allowed
Share data with your laptop.
Keep WhatsApp
Keep your original number for calls.
FAQ: eSIM for Seoul
What is the best eSIM for Seoul?
OVOSIM offers the best value eSIM for Seoul starting at €6.99. It connects to KT for 5G speed.
How much does an eSIM for Seoul cost?
Plans start from €6.99 for 1GB. There are no hidden fees or roaming charges.
Does this eSIM work in Seoul airports?
Yes, the eSIM activates instantly upon arrival. You will have 5G data immediately.
Which network does this South Korea eSIM use?
Ovosim connects to SK Telecom and KT (formerly KT Freetel) — South Korea's two premium carriers. SK Telecom is consistently ranked the world's fastest 5G network by Ookla Speedtest.
Does Google Maps work in South Korea?
Partially. South Korea restricts Google Maps routing due to national security laws, so turn-by-turn navigation is limited. Use Naver Maps or Kakao Map instead — download one of these apps before you arrive.
Can I use Kakao T (ride-hailing) with this eSIM?
Yes. Kakao T requires a data connection to book rides. Activate Ovosim before landing at Incheon to have a Kakao T ride waiting when you exit arrivals.
Does it work on Jeju Island?
Yes. Jeju Island has full 5G coverage from SK Telecom. All tourist attractions, beaches, and the main towns have excellent connectivity.
Is this cheaper than the SIM at Incheon Airport?
Yes. Incheon airport SIM kiosks charge KRW 33,000–55,000 (€23–€38) and require passport registration with a waiting queue. Ovosim starts at €5.99 with instant activation and no ID required.