Internet in South Korea
How to access the internet in South Korea? Everything you need to know to prepare for your trip in the best possible conditions!
Rony•
October 27, 2025
•7 min
Best eSIM South Korea: Comparison of eSIMs for traveling in South Korea in 2025
Are you planning a trip to South Korea and want to be connected as soon as you land? Wondering which eSIM will allow you to use your banking apps or social media without any restrictions? Want to find the best eSIM for South Korea without breaking the bank or compromising on reliability?
You're definitely not alone: with online comparisons and conflicting reviews, it's hard to know where to start.
👉 Some plans are overpriced.
👉 Others promise good coverage but disconnect for no reason.
👉 And sometimes, certain apps are simply inaccessible...
Good news: you've come to the right place 🇰🇷.
In this guide, you'll find a transparent and up-to-date comparison of the most reliable eSIMs for traveling in South Korea in 2025.
Rony
October 22, 2025
4 min read
⚡ Spoiler alert:
The best eSIM for South Korea is the one offered by voilà. But if you want to understand why and, above all, how it compares to other offers, read on: you'll know exactly which eSIM to choose for your stay in South Korea.
Comparison of the 5 best eSIMs for traveling to South Korea
Today, you will find many eSIMs available for South Korea. Among the best known are: Saily, Ubigi, Airalo, and Holafly. On paper, their offers seem reasonable... but when you dig a little deeper, the limitations quickly become apparent:
Saily: About $32 for 20 GB. That's far from affordable, and there's no guarantee that your apps (banking or streaming) will work properly once you're there.
Ubigi: charges nearly €38 for 25 GB. Rates remain very high for the amount of data offered.
Airalo: $32.50 for 20 GB. The price is a little lower, sure, but the same issues remain: some apps blocked, customer service only in English, and endless response times.
Holafly: This is the most excessive. Over €60 for a 30-day plan in South Korea. Yes, the data is "unlimited," but the restrictions are unclear, and transparency is clearly lacking.
👉 Result: you pay a lot, you get slow support, and you still risk having certain apps blocked... not ideal for a connected trip.
South Korea eSIM Comparison: Why is this eSIM the best?
When I say that eSIM is currently the best option for traveling in South Korea, it's not just my opinion—it's the result of extensive field research. Every week, I talk to travelers like you who tell us about the same problems:
❌ Common issues
- eSIMs that block TikTok, banking apps, or even Google Maps
- Plans that are far too expensive for the amount of data offered
- Slow customer service, often only available in English
- An unstable connection as soon as you move away from major cities
✅
Notre solution
With this in mind, I decided to separate the good from the bad, keeping only the truly reliable eSIMs for your stay in South Korea. I tested different eSIMs during all our trips to Asia and developed a solution that finally meets your real needs.
Unbeatable price: 20 GB for only $19.80
Reliability tested on site
No blocked applications
Connection sharing included
French-speaking customer service
Money-back guarantee
The good news? All of this is available directly in our voilà app, in just a few clicks.
Here are the traditional eSIMs for South Korea.
Discover why this is the best choice for your trip to South Korea.
Functionality | Autres eSIMs | |
|---|---|---|
Price/GB | $0.99/GB | $1.50/GB |
TikTok and accessible apps | — | |
Data tracking | ||
4G/5G network | ||
Instant activation | ||
Responsive customer support | — |
So, what's the best eSIM for traveling in South Korea? You tell us!
Because, ultimately, our customers are the best ones to talk about it. Here are a few examples of reviews from travelers who chose Voilà for their trip to South Korea. What do they have in common? A simple, reliable, and stress-free experience. Their reviews are authentic, verified, and shared with complete transparency. You can find them directly on the App Store 🤩
Superb!!
I would like to warmly congratulate the creator of this app, which is not only extremely practical and well designed, bu...
wbengji94
Essential for stress-free travel
Excellent app! Comprehensive travel guides, authentic spots, and eSIMs that can be activated with a single click to stay...
Shikatchou
Top guide
I'll keep it short: the guide is top-notch, as is the price of the eSIM, which is unbeatable. And the customer service i...
xalah0play
Top-notch application
Very practical and easy-to-use app. I bought an eSIM and was pleasantly surprised by the quality of the network and the ...
Marine_Dtx
Perfect for traveling
Great app with detailed guides and an eSIM that works perfectly. The value for money is unbeatable and customer service ...
TravelLover22
Excellent service
The eSIM works perfectly, with quick and easy activation. The rates are very competitive and there are no blocked apps. ...
Paul_Voyage
South Korea eSIM Comparison: The Verdict—Which is the Best eSIM for South Korea?
After reviewing all available offers, the conclusion is clear: the eSIM is the most effective solution for traveling in South Korea.
Reliability tested on site
No blocked applications
Connection sharing included
French-speaking customer support
In short: it is the most comprehensive, transparent, and convenient offer on the market.
And let's be honest: whichever one you choose, there's one thing to remember → Opt for an eSIM rather than a traditional SIM card. It's simpler, more economical, and most importantly, you'll be connected as soon as you arrive in South Korea.
And to go even further, discover "Korea as the locals see it," our exclusive 14-day itinerary available in the Voilà app. You'll also find all our ready-to-use eSIMs, which can be activated in seconds.
Finally, to make sure you don't miss out on any of our great deals, travel tips, and must-see spots → follow us on Instagram and TikTok. You'll always be one step ahead for your next trip to Japan. 😉
There you go, now you know everything! And if you still have any questions, check out our FAQ or write to us directly on WhatsApp!WhatsApp
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No more roaming fees
Travel abroad with confidence: no more roaming fees, connection struggles, or unexpected top-ups. With a travel-friendly eSIM, stay connected everywhere, stress-free and surprise-free.
FAQ: Best eSIM for South Korea
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Rony is our in-house travel-connected expert. Always curious and never too far from an airport, he explores the latest destinations while testing the newest eSIM solutions. He signs our articles on travel and mobile technology, with a single mission: to turn his discoveries into clear, reliable, and smart advice to accompany you anywhere in the world.
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