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See what travelers are saying about their South Korea eSIM experience. Real feedback from real users to help you pick the best plan for your trip.

“reasonable prices, good connection. never lost connection before expiry date & time.”

“Good ”

“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.”

“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”

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

“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.”

“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)”

“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! 😊🌍”

“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.”

“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”

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

“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!”

“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.”

“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.”

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

“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.”

“Excellent customer service at Airhub.
Thank you for the amazing support! ”
Everything you need to know about using eSIMs in South Korea
There are roughly 130 providers offering more than 7, 100 prepaid data plans in South Korea. With such a wide variety of options, travelers can easily find an eSIM that suits their needs.
Unlimited data eSIM plans are available for travelers heading to South Korea. Several providers offer such plans, including Billion Connect, Yoho Mobile, abesteSIM, Roamify, MicroEsim, Truely, Yesim, GIGAGO, TravelKon, esimzon, Airhub, and FairPlay. Many of these plans come with the caveat that data speeds may be throttled after a certain amount of usage, and some specify a speed limit (for example, Yoho Mobile caps speed at 5 Mbps). The overall price range for unlimited plans spans from about $2.50 for the cheapest one‑day offerings to roughly $31 USD for the longest‑validity options, with most plans costing between $10 and $30 USD depending on duration and provider.
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.
Yes, travel eSIMs that provide a phone number and SMS for South Korea can be purchased from a number of providers. The plans that list South Korea as the destination include GlobaleSIM, MicroEsim, Orange Travel, and Roamify. All of these plans support inbound and outbound voice and SMS, with the exception of some GlobaleSIM offerings that only allow inbound SMS. The dialing codes that the numbers use vary: GlobaleSIM supplies a +1 (U.S.) number, MicroEsim offers a +010 number that follows the South Korean mobile prefix convention, Orange Travel uses the 48 (Poland) and 33 (France) codes, and Roamify uses a +33 (France) code. Prices start around $4 for 1–7 day plans and rise to about $75.99 for 30‑day packages, while Roamify also offers longer‑term options up to 365 days for $105.
Travelers should keep in mind that although a phone number and SMS capability are available for use while in South Korea, most of the numbers are issued with foreign dialing codes rather than the local +82 code. If a truly local South Korean number is required, it may be necessary to look for a plan that explicitly lists +82 as the dialing code. Otherwise, the numbers above will work for calls and texts to South Korean mobile and landline numbers, and will receive incoming SMS, but outbound calls will appear to come from the foreign code indicated.
Summarized by AI, Last updated:
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