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Customer Reviews
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.
“Worked flawlessly with great signal. The auto top up feature didn't work, but manual top up went great. Loved the price and will use again!”
“I do not recommend this site for purchase. Before purchasing, I came across a number of negative reviews, but I decided to try my luck anyway. Here's my experience: In Uzbekistan, everything worked perfectly for one day, but the speed was terrible on the second day. In South Korea, everything worked well, but in China, everything worked well for two days, and then the internet simply disappeared, even though I still had plenty of data and time left. There is no support, and the AI agent responds by saying that I am doing something wrong.”
“reasonable prices, good connection. never lost connection before expiry date & time.”
“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”
“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.”
“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.”
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?
In South Korea, there are roughly 210 travel eSIM brands and about 14, 500 prepaid data plans available. This wide variety of options makes it easy for travelers to find an eSIM that fits their needs.
Are there any unlimited data eSIM plans available for South Korea?
Unlimited data eSIM options for South Korea are offered by several providers. The plans run from a single‑day validity up to 20 days and are priced between roughly $1.99 and $28.14 USD. All of these packages allow tethering and come with a speed‑post‑payment policy, meaning the network may throttle speeds after the data quota is exhausted or for overall traffic management.
The speed caps vary: Earth Esim limits speeds to 1, 5, or 10 Mbps; abesteSIM caps at 10 Mbps; NX MOBILE offers up to 100 Mbps; GIGAGO and Orange Travel do not publish explicit speed limits but note throttling; other providers such as Truey, RedEx eSIM, BambooSIM, Yesim, esimzon, Ohayu, and FlyEsim.me advertise unlimited data with no specific speed caps, though a slowdown is still possible.
With these options available, travelers can choose the package that best fits their duration of stay and data needs while factoring in potential speed restrictions. If unlimited plans are not suitable, estimating usage based on intended internet activities and selecting a plan with sufficient data allocation remains the best strategy.
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?
South Korea travel eSIM plans that provide a phone number and SMS functionality are available from several providers.
GlobaleSIM offers the cheapest option, giving a 1 GB data allowance for $4.00 with a 7‑day validity and a U.S. – dialed (+1) phone number; the number is not local to Korea. NX MOBILE supplies an unlimited 5G eSIM for $5.99 with a one‑day validity, using a local Korean (+82) number that supports inbound and outbound calls and SMS. EtravelSIM provides a 4 GB plan for $10.99 over 30 days, bundled with a UK (+44) number, and inbound/outbound messaging. Airhub sells a 12 GB data eSIM for $13.00 valid for five days, featuring a French (+33) number with full telephony and SMS services. MicroEsim’s unlimited SK Telecom eSIM is available for $14.13 on a three‑day basis, using a local Korean (+82) number that allows calls and SMS. Orange Travel’s 2 GB plan costs $16.99 for a 30‑day period and includes a Polish (+48) phone number capable of voice and SMS.
These plans provide both voice and text services, although only the NX MOBILE and MicroEsim options deliver a local Korean number. The other providers supply foreign‑dialed numbers, which still allow you to receive and send SMS and call in and out of South Korea. Prices and validity periods vary from one day to several months, so travelers can choose a plan that best fits their stay and communication needs.
Summarized by AI, Last updated:
All Travel eSIM Providers for South Korea
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