“I buy and use eSIM all the time and this was the WORST vendor/eSIM service. eSIM did not even work from the start, and no response from the vendor. eSIMDB should delist this vendor from the website.”

LEE

Sep 28, 2025

GIGAGO South Korea

“Doesn't have a local internet breakout like it says in the page, it uses Hong Kong operator and the lag is as bad as with the other sims that are 1/6 the price, so save your money”

bengoa

Sep 25, 2025

Billion Connect South Korea

“Throttled to 12 mbps. Otherwise perfect connection and excellent price.”

David Kell

Jun 8, 2025

Billion Connect South Korea

“I’ve used Billion Connect for multiple eSims abroad now, and I’ve found them great every time. Their customer service responds pretty quickly to any issues, and the sims are cheap and work well. Be aware the sims are mostly based in Hong Kong so if you’re geographically far from there the latency might be a little high, and you may need a VPN for things like TikTok to work, but I’ve had very few issues.”

James

Jun 3, 2025

Giga.Tel South Korea

“Beware: 1) No call/text available in South Korea. 2) Routed via HK so not the best service due to latency, but the same as most competitors in SK for eSIM. 3) Weird discrepancy on their website about price in USD vs charged amount ($1.00 USD more is charged than shown online). How do I know? I bought 3 eSIMs from Giga.Tel in South Korea, and over 10 from eSIM competitors. So far they are still the cheapest for the same 30GB and quality of service. Plus you can checkout with American Express in case of a dispute (MobiMatter does not allow Amex)”

iTravelalotyesindeed

May 26, 2025

TravelGator eSIM South Korea

“As soon as I land in a new country, it’s just a few simple steps to activate the eSIM—and I’m instantly connected!

The connection is way more stable than my original telco’s roaming, and best of all—no more swapping SIM cards or re-adding eSIMs every time I travel.

Definitely a game-changer for frequent travellers like me! 😊🌍”

Eris

May 22, 2025

airdatalink South Korea

“I went with this esim because of the great value and because I saw a positive review (after having tried a couple esims in the past with various companies that barely worked, I'm always a bit apprehensive to try one without and positive reviews) and I just wanted to second that review - airlink worked perfectly throughout Korea (have been connected to SK network the whole 3 weeks) and when considering price per GB, I doubt there are many better options.”

Shannon

May 12, 2025

LinkeSIM South Korea

“Sim does not work for data in Korea. They also claim 24/7 support but they haven’t been online for the last 6 hours. Avoid company, I was left without any internet access when I landed and had to scramble poor free wifi to buy a different eSIM.

They still have not refunded me going to have to file a charge back. Avoid at all costs”

Claude

Apr 2, 2025

MicroEsim South Korea

“SIM was very slow. Could barely hit a few MBPs a second.”

Michael

Mar 31, 2025

Saily South Korea

“Installation, price, set up was as easy as you can get. However, the speed in South Korea was abysmal (I had better experience in other country).
Usually slow but usable, but at times you opened Google Maps and it wouldn't even finish loading your "pins". So stressful to use, up to the point that one friend with the same SIM got himself a different one during the trip and I hopped Free Wi-Fis. Not what I bought this SIM for!”

TartarME

Nov 15, 2024

Airhub South Korea

“I purchased an eSIM for my travel to South Korea. On their website, they say it 'operates on the SK Telecom Network in South Korea'; however, all traffic is routed to Hong Kong, which caused very slow 3g speeds and made it impossible to use some apps like ChatGPT.”

jamie

May 29, 2024

GLOBAL YO South Korea

“I bought two eSIM for Korea, one registered fine and worked but the other one did not register.
So I tried to contact them for help but there is no response ever.
I thought this was a good deal but it is not.
Try to avoid Global Yo as you won’t get any help or refund for your failing eSIM.”

Merry

May 26, 2024

GLOBAL YO South Korea

“The esim doesn't work, can't register to network”

John

May 2, 2024

GlobaleSIM South Korea

“I was hesitant at first, but I am glad that I made the purchase!

I am really happy that I was able to have data connection anywhere I go. I recommend this esim if you are traveling and wanted to have an awesome roaming connection.”

Love_eSIM

Sep 28, 2022

Airhub South Korea

“Excellent customer service at Airhub.
Thank you for the amazing support! ”

Laur

Sep 27, 2022

South Korea Travel eSIM FAQ

Everything you need to know about using eSIMs in South Korea

How many travel eSIM brands (providers) are available for use in South Korea, and how many prepaid data plans are there?

South Korea hosts around 120 travel eSIM providers and offers roughly 5, 500 prepaid data plans. This abundance of choices gives travelers a wide variety of options, making it easy to find an eSIM that fits their needs.

Are there any unlimited data eSIM plans available for South Korea?

Yes, several eSIM providers list unlimited data plans for South Korea. Providers such as Yoho Mobile, Billion Connect, abesteSIM, Roamify, MicroEsim, Truely, Yesim, GIGAGO, esimzon, TravelKon, Airhub, and FairPlay all advertise unlimited data options with validity ranging from a single day to up to 30 days. Most of these plans include a speed throttle, with some offering a specific limit of around 5 Mbps or stating that speeds may be reduced after a certain amount of traffic. The pricing for unlimited data ranges from about $2.49 to roughly $41.84 USD, with most providers in the $3‑$30 USD bracket. Travelers should review each plan’s validity period, speed throttle details and tethering allowance to select the option that best matches their expected usage.

What are the major mobile networks available for a travel eSIM in South Korea?

SK Telecom: The largest wireless carrier in South Korea, offering extensive nationwide coverage and a wide range of mobile services.
KT Corporation: A major telecommunications provider delivering comprehensive mobile services and playing a significant role in the development of 5G technology.
LG Uplus: A prominent mobile network operator known for its advanced network infrastructure and diverse mobile service offerings.

In addition to these major Mobile Network Operators (MNOs), South Korea has a growing number of Mobile Virtual Network Operators (MVNOs). MVNOs provide mobile services by leasing access from the major carriers, offering consumers alternative options. Notable local MVNOs include EyeVision Corp. and Sejong Telecom Inc. However, it's important to note that most travel eSIMs rely on the infrastructure of MNOs rather than MVNOs.

Can I get a travel eSIM with a phone number and SMS for South Korea?

Travel eSIMs that provide both a phone number and SMS capability are available for South Korea. Providers such as GlobaleSIM, MicroEsim, Roamify, and TravelKon offer these services. GlobaleSIM’s South Korea plans use the +1 dialing code and supply inbound voice and SMS, but they do not allow outbound SMS. MicroEsim supplies local Korean numbers with the +010 code and supports inbound and outbound SMS as well as voice calls. Roamify offers global‑style plans that include either a +1 or +33 code and allow both inbound and outbound SMS, and TravelKon’s Orange Global Explorer uses a +33 code with full SMS functionality. Prices range from a few dollars for short‑term, low‑data plans to around $35 for a 30‑day 20 GB plan, with MicroEsim’s Korean numbers typically being the most affordable option for brief stays.

Summarized by AI, Last updated: Feb 27, 2026