October 29, 2025
·5 min
How do I install an eSIM?
To set up an eSIM on your phone: Settings > Cellular Data > Add an eSIM Card. Installation takes just a few clicks.


Connection sharing.
No applications blocked.
Refund in case of problems.
Activate in one click via the voilà app.
Avoid roaming charges in Seoul, Busan, Incheon, Daegu and throughout the South Korea with the voilà eSIM: enjoy fast mobile connectivity without paying for an international plan. Choose from our flexible plans ranging from 1 GB to 50 GB, for 7 or 30 days depending on the length of your trip.
Compatibility: works with all eSIM-compatible devices.
Plan activation: automatic, as soon as you arrive at your destination (provided you have activated your eSIM and roaming in your settings).
Package duration: depending on the offer chosen, from 7 to 30 days.
Data plans: From 1 GB to 50 GB.
Delivery time: instant. If you purchased your data plan on the website, you will instantly receive a QR code by email for easy installation. If you purchased an eSIM via the app, you will see it appear instantly on your profile.
SMS/calls: not available. Calls and SMS can only be made through applications (VoIP), such as WhatsApp, Viber, and Signal.
Speed: 3G/4G/LTE/5G, depending on local network operators.
Hotspot: Unlimited hotspot sharing with your loved ones.
Coverage: Reliable internet access in many cities in South Korea, such as Seoul, Busan, Incheon, Daegu. Please note that coverage quality will depend on local operators.
Network: connects to local network operators, ensuring a stable and reliable Internet connection.
Top-up: if you run out of data, you can add more GB of data via the voilà app.
Choose the eSIM data package for South Korea to suit the duration of your stay:
4.7 (100k+ travelers)
Secure payment
Enjoy fast, reliable connectivity anywhere in South Korea without a SIM card, without stress, and without blocked apps.

Use all your favorite apps without restrictions: Google Maps, TikTok, and many more, including your banking apps.

Enjoy a stable connection in all major cities: Seoul, Busan, Incheon, Daegu, and many more.


Enjoy the same shared connection with your family or friends. Connect multiple devices from a single eSIM plan.

Use all your favorite apps without restrictions: Google Maps, TikTok, and many more, including your banking apps.

Enjoy a stable connection in all major cities: Seoul, Busan, Incheon, Daegu, and many more.


Enjoy the same shared connection with your family or friends. Connect multiple devices from a single eSIM plan.
Three simple steps to stay connected in South Korea
1
Depending on your usage and length of stay, select the package that best suits your needs.

2
Whether from the voilà app by clicking on "Activate card" or by scanning the QR code received by email.

3
Your plan will activate automatically once you arrive at your destination. You can track your usage in real time via the voilà app.

An eSIM card is your cell phone plan stored directly in your phone. No cards to insert, no queues at the airport. You download your eSIM profile in just a few minutes, and your Internet connection is automatically activated as soon as you land in South Korea.
ESIM replaces the physical SIM card with a digital profile installed directly on your device. You scan a QR code, the profile is installed, and that's it. There's no risk of losing your SIM card, and no operator stores to find on site.
Your eSIM voilà activates automatically on arrival in South Korea, with no need for Wi-Fi or fiddling. Connection sharing included on all packages: plug in your computer or share mobile data with friends and family at no extra cost. TikTok, banking applications, Google Maps: everything works, nothing is blocked.
Your usual phone number continues to work for calls and messages. The eSIM here manages your mobile data in South Korea in parallel. One phone, two profiles active at the same time, or several eSIMs if your trip covers several countries.
The eSIM guarantees you an uncompromised experience during your stay in in South Korea.


By real people
Need help? We offer 24/7 support in multiple languages.
Chat on WhatsAppIf you encounter any problems, you can contact our support team and receive a refund for your package.
Enjoy a reliable network with optimal coverage throughout South Korea. Share your moments in real time without interruption.

Enjoy the same shared connection with your family or friends.
TikTok, ChatGPT, WhatsApp, Google Maps, and your banking apps are working perfectly.
Discover why this is the best choice for your trip in South Korea
Functionality
RECOMMENDED
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UbigiPrice/GB
$0.70/GB
$2.20/GB
€5.90/d
$2.20/GB
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$3.00/GB
TikTok and banking apps accessible
Hotspot sharing included
Data tracking
4G/5G network
Instant activation
Responsive customer support
Refunds
More than 100,000 travelers trust voilà to stay connected all over the world. Here is the feedback from those who used our eSIM in South Korea: SK Telecom network, 5G from Seoul to Busan and 4G all the way to Jeju Island, unbeatable prices, and all apps unlocked.
Sofiane Benani
Three weeks of remote work from Seoul, mostly in the Hongdae district. 50 GB data plan, and I was never short on data for nearly a month. The 5G from SK Telecom, the local provider that voilà relies on, held up perfectly in both coworking spaces and the subway. Big plus: free hotspot sharing, which was ideal for connecting my laptop to my smartphone during video calls. I used Kakao Maps to find my way, since Google Maps is limited. A friend uses a Saily eSIM, but for this kind of heavy usage, voilà was more reliable and the customer service was more responsive. The eSIM compatibility of my recent iPhone model was perfect, with one-click activation.
Léa_globe
Traveling alone in South Korea, from Seoul to Jeju. I had picked up a Saily eSIM in Japan, but for Korea, the Saily eSIM was more expensive, so I opted for voilà: more affordable and just as reliable on the local SK Telecom network. Downloading the prepaid eSIM and setting it up from France before departure took only two minutes—just a QR code scan. I enjoyed 5G in Seoul, signal everywhere in Jeju, and 20 GB of data was enough for typical use. Data tracking in the app, zero roaming fees. Perfect for traveling connected, with true simplicity.
Quentin Mercier
I did an eSIM comparison before leaving for South Korea. Among the best eSIMs, the Airalo eSIM uses LG U+ and ends up being more expensive per GB, whereas voilà is just €0.99 per GB on SK Telecom, the best rate on the market. Plans start at €1.70, valid for 30 days, with online purchase and installation on the website in two minutes—just scan the QR code, and the line activates as soon as you arrive in Seoul. No roaming fees, my usual number stayed reachable, and I had 20 GB of data. The value for money is unbeatable, making it an ideal eSIM for staying connected while traveling in Korea.
Greg.B92
Very good value for money for South Korea. I was hesitating between Holafly, Airalo and voilà; the Holafly eSIM offers unlimited data but is expensive, with speed throttling after a certain limit, and voilà was much cheaper per GB. The SK Telecom network is reliable both in Seoul and in the rural areas of Jeju Island. The only downside: Google Maps doesn't work well in Korea, you have to download Naver Maps or Kakao Maps, but that's not the eSIM's fault. 10 GB prepaid data plan, enough for a week, instant activation upon landing at Incheon. I'll definitely get this prepaid eSIM again; it's a reliable and affordable product that works the moment you arrive.
Hélène Vidal
Family trip to Seoul and then to Jeju Island, 20 GB data plan. The SK Telecom network coverage was reliable everywhere, even in the rural areas of Jeju, perfect for enjoying the internet as a family. I had looked at the Nomad eSIM, but voilà was more affordable and hotspotting is free and included, ideal for connecting the kids' phones safely. Our usual number stayed active for calls. Automatic activation upon arrival, zero physical SIM cards. An ideal and reliable solution, accessible to everyone, which also suits families for everyday use.
Mathis_S
One-week stay in Seoul, 10 GB data plan. I had used a Saily eSIM before, but the Saily eSIM was more expensive and less reliable; I opted for voilà, at €0.99 per GB on the local SK Telecom network, with speeds over 500 Mbps in the city and signal in the Seoul subway. Google Maps is limited in Korea, so I enjoyed using Naver Maps and Kakao Maps without any issues. Instant activation, QR code scan, and the free data sharing allowed me to help out a friend. My banking apps and social media worked securely. A simple prepaid eSIM, perfect for daily use and the best eSIM plan for South Korea.
Clara.H
I went to South Korea for 2 weeks (Seoul, Busan, Gyeongju, and Jeju) and I never had any network issues, except briefly on the KTX, but the train flies at 300 km/h. voilà relies on SK Telecom, the most reliable local network in the country, and you get to enjoy 5G in all the major cities. The prices are 2 times cheaper than on a Holafly eSIM and you can check your data in real time in the app. It's a true international eSIM, ideal for multi-destination travel: voilà eSIM plans are also the cheapest in Asia, so I'm continuing to use them for the rest of my road trip in China and Japan.
Hugo Lambert
A short long weekend in Seoul, I took the 5 GB data plan, which was plenty for transport, Naver Maps, and WhatsApp. The choice between the plan options, from 1 to 50 GB, depends on your budget and the length of your stay; it's more flexible and cheaper than a classic mobile plan. My only complaint: no unlimited data like with a Holafly eSIM, so for heavy streaming, go for 20 GB instead. For light use, it was excellent and much cheaper than unlimited offers. This prepaid eSIM shows the final price right at purchase, nothing is hidden.
Awa Diallo
For my trip to South Korea, I compared several South Korea eSIM providers before choosing voilà. Buying an eSIM, installing it, and downloading it took just two minutes through the app—one QR code scan and it was ready, much simpler than a local SIM card. The SK Telecom network was stable from Seoul to Busan (the other local operators being KT Korea Telecom and LG U+). 20 GB of data for two weeks was more than enough, with top-ups available in the app. No blocked apps: TikTok, social media, and banking apps all worked perfectly and securely. I highly recommend it for international travelers.
Fanny.K
Great deal for South Korea. I had compared the Holafly eSIM and the Ubigi eSIM, but voilà was cheaper and had no blocked apps. The SK Telecom network was stable in Seoul and in the subway. The only little downside: you have to enable data roaming yourself in your device settings, but the activation instructions in the app are also very clear, so you'll manage easily. 10 GB of data was more than enough for a week of typical use, with top-ups available if needed. For the price, this prepaid eSIM remains the best eSIM plan, much more practical than a standard mobile plan.
Romain Vasseur
Road trip from Seoul to Busan, 20 GB data plan. voilà is the provider I chose after comparing what the competitors offer: SK Telecom network (the Korean operators being SK Telecom, KT Korea Telecom, and LG U+), reliable coverage from the first to the last day. Immediate internet connection at Incheon Airport, banking apps and WhatsApp without any blocking, all safely. Free hotspotting is included, and I was able to top up 5 GB directly in the app in two minutes. A simple and reliable travel eSIM, perfect for all international travelers, and much cheaper than the more well-known brands.
Tommy33
Two weeks across South Korea, from Seoul to Busan via KTX and then to Gyeongju. The SK Telecom network is fast: we enjoyed full-speed 5G in the city, exceeding 500 Mbps, and even had a signal on the high-speed train. I had a Saily eSIM before, but the Saily eSIM used a less stable network; with voilà, the internet connection never cut out. 50 GB of data for heavy use (streaming, free data sharing in coworking spaces), with data usage tracking in the app. Clearly the best eSIM for South Korea.
1 / 0
Sofiane Benani
Three weeks of remote work from Seoul, mostly in the Hongdae district. 50 GB data plan, and I was never short on data for nearly a month. The 5G from SK Telecom, the local provider that voilà relies on, held up perfectly in both coworking spaces and the subway. Big plus: free hotspot sharing, which was ideal for connecting my laptop to my smartphone during video calls. I used Kakao Maps to find my way, since Google Maps is limited. A friend uses a Saily eSIM, but for this kind of heavy usage, voilà was more reliable and the customer service was more responsive. The eSIM compatibility of my recent iPhone model was perfect, with one-click activation.
Léa_globe
Traveling alone in South Korea, from Seoul to Jeju. I had picked up a Saily eSIM in Japan, but for Korea, the Saily eSIM was more expensive, so I opted for voilà: more affordable and just as reliable on the local SK Telecom network. Downloading the prepaid eSIM and setting it up from France before departure took only two minutes—just a QR code scan. I enjoyed 5G in Seoul, signal everywhere in Jeju, and 20 GB of data was enough for typical use. Data tracking in the app, zero roaming fees. Perfect for traveling connected, with true simplicity.
Quentin Mercier
I did an eSIM comparison before leaving for South Korea. Among the best eSIMs, the Airalo eSIM uses LG U+ and ends up being more expensive per GB, whereas voilà is just €0.99 per GB on SK Telecom, the best rate on the market. Plans start at €1.70, valid for 30 days, with online purchase and installation on the website in two minutes—just scan the QR code, and the line activates as soon as you arrive in Seoul. No roaming fees, my usual number stayed reachable, and I had 20 GB of data. The value for money is unbeatable, making it an ideal eSIM for staying connected while traveling in Korea.
Greg.B92
Very good value for money for South Korea. I was hesitating between Holafly, Airalo and voilà; the Holafly eSIM offers unlimited data but is expensive, with speed throttling after a certain limit, and voilà was much cheaper per GB. The SK Telecom network is reliable both in Seoul and in the rural areas of Jeju Island. The only downside: Google Maps doesn't work well in Korea, you have to download Naver Maps or Kakao Maps, but that's not the eSIM's fault. 10 GB prepaid data plan, enough for a week, instant activation upon landing at Incheon. I'll definitely get this prepaid eSIM again; it's a reliable and affordable product that works the moment you arrive.
Hélène Vidal
Family trip to Seoul and then to Jeju Island, 20 GB data plan. The SK Telecom network coverage was reliable everywhere, even in the rural areas of Jeju, perfect for enjoying the internet as a family. I had looked at the Nomad eSIM, but voilà was more affordable and hotspotting is free and included, ideal for connecting the kids' phones safely. Our usual number stayed active for calls. Automatic activation upon arrival, zero physical SIM cards. An ideal and reliable solution, accessible to everyone, which also suits families for everyday use.
Mathis_S
One-week stay in Seoul, 10 GB data plan. I had used a Saily eSIM before, but the Saily eSIM was more expensive and less reliable; I opted for voilà, at €0.99 per GB on the local SK Telecom network, with speeds over 500 Mbps in the city and signal in the Seoul subway. Google Maps is limited in Korea, so I enjoyed using Naver Maps and Kakao Maps without any issues. Instant activation, QR code scan, and the free data sharing allowed me to help out a friend. My banking apps and social media worked securely. A simple prepaid eSIM, perfect for daily use and the best eSIM plan for South Korea.
Clara.H
I went to South Korea for 2 weeks (Seoul, Busan, Gyeongju, and Jeju) and I never had any network issues, except briefly on the KTX, but the train flies at 300 km/h. voilà relies on SK Telecom, the most reliable local network in the country, and you get to enjoy 5G in all the major cities. The prices are 2 times cheaper than on a Holafly eSIM and you can check your data in real time in the app. It's a true international eSIM, ideal for multi-destination travel: voilà eSIM plans are also the cheapest in Asia, so I'm continuing to use them for the rest of my road trip in China and Japan.
Hugo Lambert
A short long weekend in Seoul, I took the 5 GB data plan, which was plenty for transport, Naver Maps, and WhatsApp. The choice between the plan options, from 1 to 50 GB, depends on your budget and the length of your stay; it's more flexible and cheaper than a classic mobile plan. My only complaint: no unlimited data like with a Holafly eSIM, so for heavy streaming, go for 20 GB instead. For light use, it was excellent and much cheaper than unlimited offers. This prepaid eSIM shows the final price right at purchase, nothing is hidden.
Awa Diallo
For my trip to South Korea, I compared several South Korea eSIM providers before choosing voilà. Buying an eSIM, installing it, and downloading it took just two minutes through the app—one QR code scan and it was ready, much simpler than a local SIM card. The SK Telecom network was stable from Seoul to Busan (the other local operators being KT Korea Telecom and LG U+). 20 GB of data for two weeks was more than enough, with top-ups available in the app. No blocked apps: TikTok, social media, and banking apps all worked perfectly and securely. I highly recommend it for international travelers.
Fanny.K
Great deal for South Korea. I had compared the Holafly eSIM and the Ubigi eSIM, but voilà was cheaper and had no blocked apps. The SK Telecom network was stable in Seoul and in the subway. The only little downside: you have to enable data roaming yourself in your device settings, but the activation instructions in the app are also very clear, so you'll manage easily. 10 GB of data was more than enough for a week of typical use, with top-ups available if needed. For the price, this prepaid eSIM remains the best eSIM plan, much more practical than a standard mobile plan.
Romain Vasseur
Road trip from Seoul to Busan, 20 GB data plan. voilà is the provider I chose after comparing what the competitors offer: SK Telecom network (the Korean operators being SK Telecom, KT Korea Telecom, and LG U+), reliable coverage from the first to the last day. Immediate internet connection at Incheon Airport, banking apps and WhatsApp without any blocking, all safely. Free hotspotting is included, and I was able to top up 5 GB directly in the app in two minutes. A simple and reliable travel eSIM, perfect for all international travelers, and much cheaper than the more well-known brands.
Tommy33
Two weeks across South Korea, from Seoul to Busan via KTX and then to Gyeongju. The SK Telecom network is fast: we enjoyed full-speed 5G in the city, exceeding 500 Mbps, and even had a signal on the high-speed train. I had a Saily eSIM before, but the Saily eSIM used a less stable network; with voilà, the internet connection never cut out. 50 GB of data for heavy use (streaming, free data sharing in coworking spaces), with data usage tracking in the app. Clearly the best eSIM for South Korea.
Order your eSIM card to travel without roaming charges in over 170 countries.
Everything you need to know before choosing your eSIM Here you are for your trip in South Korea.
October 29, 2025
·5 min
To set up an eSIM on your phone: Settings > Cellular Data > Add an eSIM Card. Installation takes just a few clicks.

January 3, 2026
·6 min
Find out how an eSIM with a phone number works: calls, texts, activation, pricing, and use while traveling.

Total :
$22.60 USD