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Korea SIM card Black (Unlimited Data) Recommended 적립금

Basic Information
Product Korea SIM card Black (Unlimited Data)
Price $20.50
수량 수량증가수량감소

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Korea SIM card Black (Unlimited Data)

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Unlimited Data SIM from kt(Korea Telecom) at the Lowest Price, We Bet

We strongly recommend you to compare! Check it Here Now

The very Unlimited Data SIM sold the most in Korea.

Order now and get kt(Korea Telecom) Unlimited Data SIM at the lowest price.

You can choose 5, 10, or 30 days from the period option.

Service Information

  • Korea Telecom Network, the Most Reliable Mobile Service in Korea
  • No need to worry about disconnecting issue
  • 4G LTE everywhere in Korea with your own Smartphone
  • Tethering(hot spot sharing) available
  • Voice talk available through messenger
  • Everyone who has a passport including Koreans can use.
  • Compatible with all Smartphone (support all the SIM types)
  • No need to return / No credit card open.


unlimited data

  •  5 days     US$ 25 -> US$ 20.5 (18% OFF)
  • 10 days     US$ 35 -> US$ 28.9 (18% OFF)
  • 30 days     US$ 65 -> US$ 56.8 (18% OFF)

Purchase Procedure

  • Check if your smartphone is unlocked.
  • Order and Pay in this page until 15:00 (GMT+09:00) of 1 days prior to the pick-up date.
    The order that wants pick-up date is
    Sunday or Monday must be finished until Friday 15:00.(GMT+09:00)
  • Take the voucher(Order Summary by email) and passport to the pick-up place and receive the product on the day you designated.


  • Compatible with unlocked LTE or WCDMA phone
  • You can enjoy LTE with the phone which supports Band1(2.1GHz), Band3(1.8GHz) and Band8(900MHz).
    Otherwise, 3G will be applied.
  • Orders, Changes and Cancels can be made on your order until 15:00 of one days prior to the pick-up date.
    If pick-up date is Sunday or Monday, it must be finished until Friday 15:00.(GMT+09:00)
  • On the activation, the valid period begins to count down. (Extention of the assigned valid period is impossible.)
  • If you want to use the SIM with voice call, please ask to the staff at the pick up desk.(Deposit money or credit card open needed)
  • If some errors happen with SIM, you can change it at the pick up desk.

Where to Pick-up

You can choose your option among below according to your flight landing airport. Please visit the kt roaming desk on the arrival floor.

  • Incheon Int'l Airport (T1)
  • Incheon Int'l Airport (T2)
  • Gimpo Int'l Airport
  • Gimhae Int'l Airport
  • Busan Harbor
  • Jeju Int'l Airport

Customer Center

  • About Purchase or Pick-up
  • email : cs@prepia.co.kr
    facebook ID : krsim
    (Your inquiries are responded as checked during the business hours)

  • Call at the Pick-up Site
  • Demestic : 1588-0608(pay)
    Overseas : +82-2-2190-0901 (Free at kt mobile phone)

How to Solve Internet Related Problems

If your internet doesn’t work even after the activation is completed, follow this step.
Insert the SIM first while the mobile phone is turned off and turn the power on afterwards.
Set WiFi OFF / Airplane mode OFF / Data Network ON and set the APN.


[settings] → [Wireless and Networks] → [Mobile Networks] → [Access Point Names] → [New APN] → input the values on the below rectangle → [KT] select → restart


① Safari www.unlockit.co.nz → Click “Create APN”
② Country : Korea → Carrier : KT → Click “Create APN”
③ “install Carrier APN” appears → restart

4G LTE Unlimited Data and Prepaid SIM Cards in Korea at the Lowest Price Guaranteed USD 20.5 | The very SIM in the Incheon Airport at discount | Korea SIM Card powered by kt(Korea Telecom) is a Authentic and Reliable Company, that provide the best communication solution in Korea for your personal, local and international communication with unlimited data, 4G LTE Prepaid SIM and WiFi router. With advanced 4G LTE Technology, Korea unlimited data and prepaid SIM cards are designed to provide seamless always connedted internet and personal local and international crystal clear voice calling at lowest prices.

South Korean unlimited data and 4G LTE prepaid SIM help you to connect to internet with no concern and to your loved ones at exciting rates without any voice attenuation or distortion. Our Korean unlimited data and 4G LTE prepaid SIM users can now avail the opportunity of enjoying lowest rates in making and receiving calls and SMS service across Korean territories using local number over a lighting fast data connection. Korean SIM offers all new prepaid services and packages that are best designed for diverse customer requirements.

4G LTE SIM card in Korea allows you to stay connected with your relatives at unbelievable rates and premium telecommunication qualities. South Korea SIM card welcomes you to experience its comprehensive customer support system including rapid complaint responses, and billing statements. We love to make things easier and fast for our valuable users hence we integrate latest updates and trends in our prepaid SIM cards in Korea. We encourage you to browse our wide range of packages on Sim Card Korea and incredible offers keenly prepared for you. Rush to our nearest store to get your very own Korean prepaid Sim Card and start availing the best services like never before.

Total count : Total rate : /5.0

Please leave your reviews here about Korea SIM card Black (Unlimited Data).

Product Reviews
No. Title Posted by Date View Point

Use the data without limits, but with no additional charges.

The speed is also good.

Cameria 2018-03-14 23 4points

This is really great.

I forgot prepaid sim card and ordered it 4 hours before I left.

Frankly, I knew I couldn't play pick-up

But I could get a sim card when I arrived at Incheon Airport in Korea!!!!

If you have a problem, try using Facebook messages.

Krsim company service is incredible.

I really want to recommend

Trust me!!!!!! :)

For your information, I bought blue sim card.

Selina 2018-02-28 91 5points

Trust in the product and buy it. You'll feel comfortable traveling.

Zhao 2018-02-28 82 5points

I picked up the SIM card seamlessly at Incheon Airport. The SIM was working perfectly throughout my stay in Korea. Speed was consistently good (LTE). Highly recommended!

Janice 2018-02-23 95 5points

No hassle and worry-free. Easy pick up at the airport and no data distruption in all locations I've been. Super convenient and worth the price.

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翔翊 2018-02-23 111 5points

Card has been great easy pickup at airport glad i found korea red card  for this. Their all is easy as well

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婷瑀 2018-02-23 103 5points

Really nice experience! The internet is really fast and easy to use. And the staff is helpful.

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Nico 2018-02-22 100 5points

Great one!! I got the confirmation that provides me with clear instruction to get the SIM card at Incheon Airport. And the SIM card is with fast speed.

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Selina 2018-02-22 101 4points

スピードも問題なくスムーズで、とてもよかったです。 毎回つかいます。値段も少しだけここの方がやすいです。

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Georgeko Okura 2018-02-21 103 5points


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Juliana 2018-02-21 101 5points

일본에서 생활하다가 잠깐 한국에 들어왔어야하는데 SIM 카드가 마땅치 않았어요.

근데 무제한 심카드는 한국 여권으로도 사용 가능하다고 해서 구입했어요~ㅋㅋ

역시 Kt 상품이라 그런지 불편함없이 30일 다 쓰고 출국하네요 ^^

다음에 올때도 이ㅛ용할게요~

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Kim Subin 2018-02-13 149 5points

Process was easy.They did not need to assist us with putting up the sim because it was ready use.

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WEI TING 2018-02-08 141 5points

Super fast transaction, we just showed the voucher and I picked up the SIM. Amazing data connection anywhere.

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KAI 2018-02-08 138 4points

The transaction ran smoothly. You just have to talk to the KT rental counter and show the voucher (sometimes, the sim card is not available in all counters tho). If the sim card is not available, the lady at the counter will tell you in what counter number can you exchange your voucher so everything is still smooth. P.S. No need to print the voucher.

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zzzzzzzzzzzzz 2018-02-06 143 5points

Very easy to locate and good service. definitely will buy again.

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Ryan 2018-02-06 135 5points

The product was great! We did not encounter any hassle in claiming the item from the airport and even when we are using it during our stay in Seoul.

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kanna 2018-02-06 132 5points

Easy pick up, good and stable network speed. I’d definitely recommend.

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Regine Claire 2018-02-06 136 5points

The KT is great always full signal !b   I will buy again when I visit South Korea.

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ANIKI 2018-02-02 159 5points

easy pickup and quality of service. would recommend for other travellers. easy payment and recommended by others.

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JIE 2018-01-31 153 5points

The SIM card was very reliable wherever I went and I loved the unlimited data usage which provided me with a peace of mind that I am connected anywhere during my visit in Korea!

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christine 2018-01-31 157 5points

I have used this plan many times already. The pick up service is really convenient and fast. I recommend this for people who uses a lot of data.

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diano 2018-01-31 153 5points

I picked up the SIM card seamlessly at Incheon Airport. The SIM was working perfectly throughout my stay in Korea. Speed was consistently good (LTE). Highly recommended!

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Chean Sin 2018-01-31 183 5points

it was convinient to receive and easy to use. the booth was well located and the activation was easy. the data speeds are very fast.

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Tobert 2018-01-31 148 5points

So gooood :)

Definitely  going to order again next time

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jolly 2018-01-30 153 5points

Great :)

Very easy and get from the airport and worked with no problems at all.

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Dina 2018-01-30 153 5points

This sim card service is excellent, but hope there can have more day selection for foreigners. Recommend for all who want visit Korea.

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Tong Mir 2018-01-15 179 4points

it's convenient to buy a SIM card in advanced, just need the e-receipt and going to KT counter right after getting out of the arrival hall and you can get your 4G simcard. Very quick & easy!

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Ralph 2018-01-15 183 5points

I have used this plan many times already. The pick up service is really convenient and fast. I recommend this for people who uses a lot of data.

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Tom 2018-01-15 170 5points

This is the best plan I found for unlimited data. The internet is really fast and I really enjoy using it! I will order this again.

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Diane 2018-01-15 169 5points

The sim card is worth the price. The connection is very reliable & fast

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sica 2018-01-11 177 5points

The Sim card is a must for traveling. It makes everything so much easier! The pick up was easy.

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yuu 2018-01-11 178 5points

It's very convenient for tourists. I like this SIM card, and definitely will recommend it to my friends.

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SUBIM KIM 2018-01-11 176 5points

The SIM card worked perfectly and without any problems. 100% worth every penny, I can recommend it to travellers who need a reliable Internet during vacations!

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JI MEI 2018-01-11 170 5points

Thật sự rất hay GOOD!

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Gitanjali 2018-01-11 169 5points

The experiment is excellent. I have preordered my Korean sim card from home. It was ready at arrival when I checked in at the KT stand at Incheon.I am going to repeat this experience next time I come to Korea

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FENNY 2018-01-08 171 5points

You don't need to print out the voucher, you just need to show your voucher to the pick up counter. Pick up counter is easy to find.

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Chutiporn 2018-01-08 189 5points

Quick, simple and reliable

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Bonlop Labur 2018-01-08 161 4points

Finding a pick-up point at the airport was very simple.

Overall, I'm satisfied with it.

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Ming kai 2018-01-08 173 4points

It's fast, and international calls are cheap.

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ZHANG ZIE 2018-01-08 176 5points

Easy step to get the sim card in airport... KT staff very helpful to setting the simcard with our phone.. No poor receiving problem even in Jeju!

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Huyen Trang 2018-01-05 181 5points

Good and smooth data. Convenience and easy to use, no need set up. But queue long while waiting for collect:)

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ichiro 2018-01-05 162 4points

We got the SIM card successfully without any hassle. And used the SIM card on my own wifi egg for family used. Unlimited data is the best!!!

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Adriyana 2018-01-05 167 5points

Extremely convenient to redeem in the airport. Superb connection throughout my whole entire trip. Would love to recommend this to anyone who's gonna visit Korea!

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Freya 2018-01-05 166 4points

Perfect data plan for travel in Korea. It is very convenient to be picked up at Incheon airport upon our arrival.

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Angela 2018-01-05 166 5points

Super easy and reliable. Pickup of sim cases directly at the airport with very little waiting time. Would book it again next time I'm in Korea.

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Elyna 2018-01-05 160 4points

Ordered online before our Korea trip. Price was cheaper than market price. Highly recommended!

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Jowins 2018-01-03 163 5points


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刘宁 2018-01-03 162 5points

You can easily get your sim card at arrival hall. The speed is very good and you can access it almost everyway in Korea.

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Yo Ung Zix 2018-01-03 170 5points

Easy to use and fast connection. Great values! Especiallly the price is very cheap and no Extra costs... Nice

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Gigi 2018-01-03 151 4points

It has been good so far the network the internet the staff at the airport. Really appreciate the simcard and the Kr sim company.


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Sin Hui 2018-01-03 158 5points

The network speed is really really good. Highly recommended to get this during trip to Korea.

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Leonard 2018-01-03 155 5points

Very stable network. Good value for its speed and stability. Will buy again when coming to Korea.

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Wai Yi 2018-01-02 151 4points

Sim Card was good and at an affordable price! Counter was easy to find and the staff there was friendly and able to communicate in English as well. Will definitely go back to buying this Sim Card in the future!

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Chuan Kai 2018-01-02 154 4points

Fast and super efficient connection. Very cheap considering the unlimited data included with the sim.

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Shean Yen 2018-01-02 149 5points

Travelers should really get this instead of purchasing in Seoul! It's cheaper (with discounts), and super convenient! Collected my SIM card and started using it in less than 5 mins after I arrived! (:

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kanna 2018-01-02 150 5points

very convenient to use! staff knew what i wanted, no difficulty due to language barrier

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Ernie 2018-01-02 149 4points

We picked up the sim at the airport. The service is quite fast despite the peak hours! We were also allowed to try the sim in different gadgets and they even offered to help us out. Will avail again!

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Glen 2018-01-02 151 5points

Good connection with fast speed! It's easy to pick up at the airport and the staff are helpful too. If you're having trouble changing the SIM, you can ask for help there! It's much more convenient than using a wifi egg. Will definitely recommend you using it when you're in Korea.

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Joana 2018-01-02 154 5points

Great experience... Will book again when we visit seoul

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MARISA 2018-01-02 156 4points

I'm very satisfied with the easy pickup at the airport and the speed of the card :)

I always use this service whenever I go to South Korea.

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Christabel 2018-01-02 158 5points

Having unlimited data to stay connected to social media wherever I go! Keeping my love ones updated with all the amazing places I have been in Korea!

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Randall 2018-01-02 151 4points

You can buy SIM CARD at Incheon Airport.

But it was much cheaper to live online.

I recommend you to buy here!! ;-(

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Jasmine 2017-12-29 160 5points

Perfect data plan for travel in Korea. It is very convenient to be picked up at Incheon airport upon our arrival.

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Mike 2017-12-29 157 5points

It is very efficient and fast. Good deal! I am always connected and can easily use my social media.

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Bernard 2017-12-29 152 5points

The SIM card is very helpful to me in my Korea trip. It's really unlimited and high-speed internet. Also the place to get the SIM card in the airport is quite easy to find.

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Say KIM 2017-12-29 154 4points

Good service. Detail guidances. Easy to collect sim card. Very helpful! Thank Krsim. I will use krsim services next time and refer my friend!

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Gini 2017-12-29 153 5points

It was good! There was no issue in showing the voucher and getting the sim card. The person at the counter had the pin and helped to put in the sim card too.

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HANAKO 2017-12-27 153 5points

Great customer service, replied to my queries immediately. Went to Seoul, Jeonju, Busan, and had no issues with reception. I was able to use my phone as a hotspot and tether from other phones too. There was an issue accepting my payment via credit card on the site, but I was able to use PayPal with no issue.

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DOONA 2017-12-27 154 4points

The service was great! Went to the booth to collect my SIM card, the staff were polite and friendly. The provide fast services and provided help in the SIM installation. My friend had trouble receiving the network, the helped and in the end got it done for us.

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Lee Annie 2017-12-27 149 5points

It was easy to install and there is no any problems when browsing internet and using Google Map for direction. The data is very good and can access everywhere in Seoul.

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Jaslyn Koh 2017-12-27 151 5points

Amazing service! Fast n convenient~~must use Krsim product every time when I travel as a backpacker!!

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Sim Chong 2017-12-27 154 5points


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家育 2017-12-26 152 5points

simple and easy.after received voucher. i print it and show to busan related counter then they ll settle all...wifi fast and good connection

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Daina 2017-12-26 163 5points


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祐甄 2017-12-26 151 5points

Very convenient and reliable. The card could be collected from the counter near the exit of Arrival lobby of Inchoen Airport and easy to install.

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Zachary 2017-12-22 160 5points


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茜茹 2017-12-22 157 5points

Very nice, it was convenient and reliable. I will use this internet SIM card again in next travel.

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Rachel 2017-12-22 151 5points
47 Very easy to collect and the speed is awesome. Easy to use .Popular message NAMI 2017-12-21 153 4points

For travelers, the local data sim card is very important for using Maps, Hotel booking, Googling and keeping in touch with friends. Specially in South Korea where the public transportation is very modern, most of the local subways, buses, express train are updated on Google maps in latin letter, plus, the 4G/LTE in Korea is very fast even in rural area. I've been in a very nice and peaceful village without any tourist with just with my phone. Buy a Sim card in advance and enjoy your trip like a local.

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Cii 2017-12-21 155 5points

Extremely convenient to redeem in the airport. Superb connection throughout my whole entire trip. Would love to recommend this to anyone who's gonna visit Korea!

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Michelle 2017-12-21 157 5points

I wanted to purchase 4G LTE Preapaid SIM CARD, but I was worried that I arrived at the airport at 10 PM.So I told my situation in Facebook message.Then, he kindly sent SIM CARD to the hotel in advance.I was really impressed and used it well.

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万優 2017-12-20 155 5points

very easy to install and use. the pickup point was very easy to find and the staff very organized. the data speed is fast but not as expected though good enough for my need. would likely recommend this to friends and family.

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Robert Laby 2017-12-20 150 4points

First of all, you don't have to return krsim SIM CARD!

I'm satisfied.

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Kira 2017-12-20 159 4points

I'm not used to it yet, but I think it'll be fine.

Because so kind the answer to your Facebook message.

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Manoj Fiziks 2017-12-20 151 5points

I don't regret buying at krsim.net :)

Because it is much cheaper than other sites and it is very easy to pick up the sim card.

And when I got a problem with Sim card, I was really impressed by your Facebook message right away..

I will recommend the krsim to my friends who are planning a trip to Korea.

Thank you for making my trip to Korea perfectly :):):)

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Che Aniza Che Weel 2017-12-19 169 5points

SIM CARD is very convenient. I can access Internet everytime I need to search Map, place...with fast speed. It's so simple to install sim to my Phone.

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Nur Syazwanie 2017-12-19 150 5points

외국에서 생활하다가 잠시 한국에 들어올일이 생겼었는데, 이 유심같은경우는 한국여권을 소지한 사람도 사용이 가능하다고 하셔서 불편한거 없이 잘 사용했습니다.

구입하기 전에 궁금한점은 facebook message를 이용해서 문의를 드렸었고 그 문의에 대해 친절하게 설명해주셔서 정말 감사드립니다.

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KIM JIWON 2017-12-19 154 5points

In Korea, SIM card is really expensive. ;-(

But when compared to the airport and other sites, it's the cheapest.

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Emily Lim 2017-12-19 162 4points

Location was easy to find in airport. Make sure to look for the airport exterior door numbers don't get confused by the passenger exit door numbers. Very fast unlimited data, never lost signal at any point.

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Ánh Minh 2017-12-19 153 4points

SIM CARDを使用するのに不便さがなかったし、次の韓国訪問時にもここsimカードを利用しそうです

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友美 2017-12-19 167 5points

It is very efficient and fast. Good deal! I am always connected and can easily use my social media.

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LINA 2017-12-19 149 4points

Great service from the counter staff, efficient and convenient. Fast connection and excellent network coverage.

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Rebecca Chan 2017-12-19 146 5points

It was good! There was no issue in showing the voucher and getting the sim card. The person at the counter had the pin and helped to put in the sim card too.

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Clara 2017-12-19 150 4points

The unlimited data was very useful, it served a helpful tool for foreigner to get to places without much hassle.

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Ai Ping 2017-12-18 160 4points

Sim card est très bon.

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Michelle 2017-12-18 165 4points

It was great and easy to activate

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Angela 2017-12-18 150 5points

The sim card is worth the price. The connection is very reliable & fast. Makes you connected all the time! The pick up booth for the sim card is very easy to locate. Might as well purchase here online than buying directly at the booth. It is way much cheaper here. Glad to have googled this site. Thumbs up!

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Dudi Hermawan 2017-12-14 154 5points

The SIM card is very helpful to me in my Korea trip. It's really unlimited and high-speed internet. Also the place to get the SIM card in the airport is quite easy to find.

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Umair Javed 2017-12-14 162 5points

Good luck with your customer response to Facebook.

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S'äl Mâ 2017-12-14 159 4points

The SIM card is easy to get at collection spot and easy to install and operation just you think can do it T

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Tuğba Can 2017-12-14 145 5points

Excellent! The pick up location is very convenient. The service is good. The network is everywhere.

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ARI 2017-12-14 151 5points

Convenient to use and easy installation at Gimhae airport. Data speed was awesome..

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Rachel 2017-12-14 153 5points
22 Connection is fast and signal strength is also very goodPopular message Sabrina 2017-12-11 178 5points
21 Very convenient. Arrived late at Incheon but still pickup was easy, and counter staff was nice and helpful. Internet speed was fast. Worth the price for 5 days.Popular message Joy 2017-12-11 183 5points
20  I don't have to worry about my data usage for my entire trip in Seoul. Will definitely buy it again for my next trip!Popular message Jinky 2017-12-11 182 5points
19 Not as fast as what i would've wanted. But it works.Popular message Joel 2017-12-11 181 5points
18 Was a bit tough to set up as it required multiple phone restarts but other than that, the speed is great and unlimited data has been incredibly convenient! Pickup was also easy :)Popular message Muhammad 2017-12-11 172 5points
17 Surprisingly works very well with excellent coverage and speed (by KT Olleh). No need to worry about massive data usage, I stream HD youtube videos - even hotel room wifi has lag. Just show the email to the airport wifi counter and receive the SIM card. Options of different size card (micro/normal) and refundable (if use your phone). I used my own MIFI device (4G capable) and its easy as pop the card in and on to use.Popular message Shairul 2017-12-11 166 5points


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Schmidtt S. 2017-12-08 166 5points

 Very nice, it was convenient and reliable. I will use this internet SIM card again in next travel.

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Yeh 2017-12-08 175 5points

 The sim card signal very good. No need to carry another heavy Wifi stuff, much easy for travel, definitely will choose KT next time.

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YITING 2017-12-08 163 5points

 It is very convinient to use this sim card. Signal are good at every place i visit. This make my journey smoother. Recommand for couple

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Liang-Cen 2017-12-08 164 5points

Transaction and collection was smooth. Worth the money as it's unlimited data, connection was excellent all the time.

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anne kim 2017-12-07 162 5points
11 Easy to understand instructions for collection. Good coverage of wireless in the mountains in Gangwon, Korea (3 hours outside Seoul).Popular message Shairul 2017-12-05 172 5points
10 We got our sim cards without a hitch. The connection was constant, and the speed was true to Korean Internet standards. The only trouble we had was not enabling voice calls. It was a slight hassle trying to call local numbers without them on Whatsapp or Facebook. Would love this even more if there's an option to get voice call sim cards!Popular message Napoleon 2017-12-05 159 4points
9 Easy to find with clear instructionsPopular message JIANG 2017-12-05 148 5points
8 Easy to redeem and worked great!Popular message Vivi 2017-12-05 137 5points
7 Excellent connection during our whole trip, and thanks to that, we were able to surf the internet, plan our trip and find our way around Seoul easily.Popular message Agnes 2017-12-05 156 5points
6 Fairly okay. Connection was good all throughoutPopular message Nur 2017-12-05 134 5points

It is a bit difficult to leave review..

But the SIM, price and quality is the best in all I have used.

Absolutely second to none.

Thank you.

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Fabrice Ruiz‎ 2017-12-05 153 5points

I love it :). Kind response. Fast reply. User friendly interface website

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Khamidov Akbar 2017-12-04 139 5points

I had a problem with my network connection so i messaged them through facebook and the response was really fast and helpful. They fixed my sim withing a day so i can use it normally now.

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Mine Panichavong 2017-12-04 124 5points

I could easily find it at Incheon International Airport  KT

The staff worked quickly and accurately.It's something I'd like to recommend to people around me.

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CHEE WAI 2017-12-04 129 5points

 The pick up is simple.  Fast and efficient.

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WEINING 2017-12-04 147 4points

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