The krsims chat agent came through quickly and resolved the situation quickly and without much headache. 

The esim worked great and was amazing. Had no trouble with the data connectivity and speed.

Very helpful when I had issues getting my eSim to work. I expected a response the next day but they responded immediately even though it was late! Thank you.

BEST Choice i ever made!!! 

Good. Highly satisfied.

It was very convenient because I could download the plan by scanning a QR code. The data speed was fast enough. I recommended this eSIM to my friend also she satisfied with it. I will choose eSIM again for my overseas travels. Do not forget to do a registration on LGU+ website to activate the eSIM after the download !! I was a bit confused first time but it was quite simple. 

My American friend got esim and had issues with the QR code. I texted kr sim through Facebook messenger. Initially there was an automated message, but in a few hours someone actually got back to me through the messenger and was super helpful. The issue got resolved. Thank you!!

I didn't get to test my SIM yet, but needed to clarify something upon ordering one, and the customer service was awesome! Fast, informative, straight to the point, and super helpful. Great service👍

Absolutely brilliant customer service!

한국 방문할 때 마다 사용 하고 있어요.

주말에도 신속한 대응 해주셔서 믿고 사용할 수 있습니다

데이터도 충분히 빠르고요.

제 남편은 미국 여권으로 Blue 사용하고, 전 Gold 사용했어요 ^^

Excellent & Superb customer service!  Answered quickly all my questions and solved registration problem even in ChuSeok holidays!  (Ordered Korea SIM Blue)

Had an issue with the email containing the eSIM code but the seller was very helpful in resolving. SIM is working great now in Seoul.

I only have good things to say about this company! Reasonable price with excellent and professional customer service!The customer support was prompt and straight forward with clear instructions. All of my questions were answered in no time! I highly recommend Korea sim!

very affordable, most reliable, exceptional customer!

recommended for short trip. Excellent and cheap the location of pick is easy to find the staff also help kindly

Solved my issue within minutes! Fast delivery and service! Would recommend to get their simcard!

I purchased the 30 days WiFi Egg and am very satisfied with their product and their customer service.  I was taking care of my 8 years old son and had to return my egg and Korea SIM Card kindly allow me to ship an egg via mail.  Very happy with the price, product, and an exceptional customer service.

pre-ordered an e-SIM for my Korea trip and the process was extremely smooth.  connected to the QR code provided and reached out via their facebook messenger to get the issues resolved.  their response was extremely quick and they were able to resolve my item!

I can travel conveniently.

speed of using eSIM RED has always been good

It was so nice to get a KTC card that can be used as transportation card at the airport.

It's really satisfying.

Customer service is really good. I had a problem with my sim card and they sincerely fixed it and helped me even though it was my fault. The price is resonable. 

I have no experience with any other e-Sim but this one has been great! 

Purchased and activated all within 5mins. Worked straight away and has been super fast reliable connections all across from Seoul to Anyang.

Would recommend.

The service quality of Korea SIM is great!! Even I'm a Korean, I haven't been familiar to use this kind of service. There were some issues, but they're trying to solve my problems as soon as possible. I was amazing that it was not their business hour. Later the issue was caused by my real sim. When you go to Korea, you should buy and use this SIM. Then your trip will be no problem at Mobile Internet Service!!

Great customers service! All working

Great customer service, my SIM card was delayed due to a covid outbreak in the courier service (not this companys fault!) but as I couldn't speak Korean I wasn't able to phone up to sort something out. The manager of Korea SIM Card phoned and sorted it all out, I received with new SIM card within a few hours. Very kind customer service, would recommend! 10/10

Very good service. They checked the location of order for me and notified me when it arrived. Also helped me to activate sim card. Great service 

Ordered a blue plus sim card from them to be delivered to my partner's apartment in Korea and it arrived within a few days. I had trouble setting it up and contacted their customer support on facebook and they promptly helped me and it was working within an hour! overall super convenient and easy

I had some problems with the activation of my SIM card, even though it was probably my fault they helped me until I could solve it, they were always kind and now that I can use it I can tell you that the Internet speed is fast 

The airport pick-up went without a hitch, and SIM card also works well.

Really nice service and good customer service 

Really good! Always willing to help! Really Recommended!

Cheap!! And data only plan actually comes with a proper incoming call service too!! So handy.

Excellent customer service ! Able to solve my issue in a fast time . Highly recommended for anyone looking for korea eSIM / SIM card

Excellent customer service! very prompt and supportive!!! Keep it up

test

Excellent customer service, answered fast and solved all my questions. 

Excellent customer service, answered fast and solved USIM registration problem!

The response to issues is quiet fast and reliable. Good service

Very easy to purchase, very clear instructions as well. I was slightly impatient at first, because I recieved 1 email and no QR code. I reached out to the customer service on messenger, and they replied within 10 minutes, during which time the 2nd email arrived. This email had QR code and was working within 5 mins. Very fast 4g as well. Happy days

The best support and SIM I ever got!

Staff always been available even at night or weekend. They replied to all of my questions very detailed politely with incredible speed! :)

The SIM card is fast as they advertised without any complaints.

Once I get back to Korea I definitely going to use your services again! Thank you and keep up your business alive! ☺️

Regards: Gabor from Hungary 🇭🇺 

Very responsive and fast! Helped me set up my SIM card. Thank you so much. Recommend! Very fast internet too!!

There was a problem because I entered the wrong information when registering the SIM card, and I was grateful for the correct solution.

Facebook message response is fast.

It's easy to pick up a SIM card or an egg airport.

The price was also the best.

I'll definitely use this place next time.

I purchased esim card online  and I recieved QR code very quick

It is easy to use and fast. 

I will buy it again next time.

I’ve purchased SIM cards from here every time I visit Korea, and they work great. The prices are incredibly affordable and the customer service is astonishing. Fully recommend this service!

Can I get sim from cheonan, chungcheongnam do?

Highly recommended!!!! great service and very accommodating!!!!

I bought a blue sim, at first there was a problem of activation because of my passport but the customer service quickly solve it. They were very fast and helpful.

After ordering the sim-card online I received it a few days later. There was some issue with the delivery but thanks to their prompt service through FB Messenger they were able to resolve it in a timely manner. 10/10 customer service

Make sure to a activate the SIM card by registering it before use. I wasn't aware of that and mine got disconnected. It took a few hours to get the help I needed to resolve this issue. Once I reached someone, it was easy to resolve.

I bought the e-SIM and it was super easy and convenient. If you can go that route I recommend it 10/10. The customer service support is also A+

Great service, very convenient to use.

Visiting Korea again and using it again!

Very good and fast custermer service! I recommend it!

韓国で３日間esimを使えました。速度も早いし、基本的にデータ使い放題だったので安心で使えることができました。韓国に入国する予定の方なら超おすすめです！

I bought the Korea SIM card Blue for USD64. Pick-up at the airport as well as activation went smoothly. However, about 4 days into using the SIM card, I started to receive marketing calls, prank calls and even calls from unknown sources telling me that I owed them money. I also received calls in which the caller constantly referred to me as another person. I did not use this number for any purpose except for:

1) Picking up the government's calls (I am under compulsory self quarantine due to the Covid-19 situation) and

2) For a one-off food delivery service (which I had used many times before in Korea and not received any weird messages).

All in all, I feel pretty disappointed after reading all the good reviews about purchasing a SIM card from this website, I did not expect to have to face these issues.

Really good and fast! Set up was finished in no time and you can get data anywhere! Will definitely use it again :)

한국에서 10일권 사서 아주 잘 사용했읍니다. 데이타외에 전화 통화가 필요해서 저한텐 요긴했고 전체적으로 편하고 연결상태도 아주 좋았어요. 가격도 10일간 $31.90. 만족하게 쓰고 갑니다. 유심칩 갈아주고 개통 해준 최재원씨에게 감사 드립니다.

Maybe this SIM card could be the best option for who visiting Korea.

I've experienced two times and they are easy to install, 24 hrs ready to support customers even in holidays, very kind and detailed.

잘 이용했습니다. 감사합니다.

1st time in Korea, bought Korea SIM card at 7-11 in the airport. Activation was easy, was using data even before I left the airport. I had a question about kt wifi, messaged Korea SIM on Facebook Messenger. They replied and answered my question so fast. So great!!! 👍

Had a hard time getting this to work but they were very helpful in replying to my questions and got it to finally work.

I ordered a blue sim card for my mum (in her 70’s) to pick up at the Incheon airport. I was concerned though that she would not know how to replace the sim. But the time she arrives at the airport is 9pm, outside their office hours, so I thought she couldn’t get help around that time.So I asked a staff via facebook messenger if they have a retail store for her to visit another day and get assistance. The staff then considered and arranged with SevenEleven (a 24-hr convenience store where the sim card to be picked up by mum) and helped replacing the sim on her phone.Mum was really happy that her phone with the new sim was working well and especially with the staff who were so kind to help her. Thank you so much for offering this service outside your office hours! Really appreciate it.

Really good sim And Customer service support is really quick. Thank you so much.

The customer service was really helpful and patient

I went with this company because they were the only company had 15 days package. Pick up was very easy. I had a trouble setting it up (make sure you update on passport information even if you don't see KT or LTE on the top bar) they were VERY quick with email, facebook! I am so glad I made the right choice. This sim card is going to make my trip so fun!

Very helpful customer service

Easy to use, easy to set up, and customer service was patient and outstanding. Highly recommened.

I had trouble activating my SIM and they did it very quickly and nicely! Thank you!

Customer service responded quickly! Nice service!

Great customer service with quick replies, very helpful.Fast delivery ^.^

Quick responses, smooth problem solved from customer service! highly recommend! I would def use this again! 👍👍

Very best and fastest delivery service ever! Friendly and swift replying staff. Cheaper than to buy in airport. I'm f***ing satisfied. Thanks for the best provided service!

Korea SIM card good service and helpful for me when my data card can’t activate. Thanks

Korea SIM card customer service is so nice and helpful.I have a problem with one of the provider i used in korea when im already back in my home country. Fortunately, i stumbled on Korea SIM card website and got connected with their customer service, and they were happily helped me out contacting the provider for me. Thank you so much for your help. My issue has been resolved thanks to you guys.

Collection point at Incheon Airport, very convenient.

 Korea SIM card was very helpful picking out the right cellphone plan for 3 phones for 60 days. He answered all my questions and provided best price. THANK YOU

The customer service is really effective and fast! I have mistakenly did not follow the procedure to active my sim card and my line was cut off. Reaching through facebook chat and my problem solved right away!

Visited Seoul in May 2018 and was so impressed by their efficient customer service that I’m using their services again for another trip to Seoul this month! Thank you for the easy transition and allowing me to enjoy Korea with no mobile/internet issues!! Highly recommend!

Получили сим карту на выходе из аэропорта . Все подключили , работает отлично !

SIM card was easy to pickup, the girl there helped me a lot to set it all up and got respond to my question here on fb real fast. Thanks.

It was super easy to pick up at the airport and awesome to use. Internet was fast without any issue! I loved it!

It was very convenient to have this sim card and it was very easy to use. I mainly need the data for navigation around seoul so i do recommend for those who need to use map.

No problems with the SIM!! It works perfectly and they answer your question really fast! The perfect option if you need Internet all the time in tour trip in Korea! Highly recommended! :)

Perfect service! Delivery is super fast and reliable, connection is flawless all the time and the customer service is exceptional

good service good price 

I will use this Sim card again next time

Amazing Service really nice support system and they are there to help you out if you need help delivery is fast and reliable as well

심카드 빼놓고 심카드 설명서랑 모두를 버렸는데 서비스센터에서 너무도 친절하게 알려주셔서 너무 잘 썼습니다. 감사합니다~

힌국에서 아주 편리하게 잘 사용했습니다. 한국 들어올때 필수품....

NICE. REALLY NICE. It's my second time purchasing products from this site and I really liked both the service and the product itself. No problem overall, the explanations on the instructions leaflet that comes with the sim card are well explained and more important the staff is really kind and always available. :) The few times I needed to contact them, they were always kind and helped me resolve my problems as soon as they could. I must say I really appreciated that. Therefore I truly recommend Korea Sim.net〜The service is on point, the staff perfectly know how to deal with clients and the products are great. In addition, there are several products you can choose from depending on your needs. Thank you Korea Sim <3 감사드려요! ^^ 좋은 하루 보내시길 바랍니다〜

The trip to Korea was too peaceful..

No matter where I am, Data and Call is Nice..

totally worth it, awesome connectivity and value for money

GOOD.

I recommend you to live here without worrying about it. Because it is a great experience to come to Korea and enjoy the Internet at this speed.

A true and a good company is being mustered by the level of their service, and mainly on times after you have already purchased the product.

And in Korea SIM I have found both. The service, the help and all they did for me before the actually purchase and pick up of the sim card was simply great.

But not less, also after 3 days after receiving it and facing an activation problem the Korea SIM support team took great care of me and handled all fast and in an efficient way. 

So I definably would recommend to but a Korea sim card.

the only problem I offer Korea SIM to fix is that those sim cards are only for tourists, and yet, the sms you get from them is in Korean.

thank you Korea SIM for a wonderful service.

Merci beaucoup. Vous avez été très utile et agréable ! Les prix sont très abordables.

Ami.e.s français, n'hésite pas !

it's good but should have guideline for user to use easily

Re : Thank you for your choice and review. But, on the product manual you have, the guideline was well written. :) I recommend you to read it carefully. Have a wonderful trip~!

The best choice for internet in Korea. It might be a little expensive, but trust me is worth it. You don't have to worry on searching for a SIM Card in Korea, when you arrive at the airport it will be separated to you. So the moment you arrive until the day you leave Korea you will have an unlimited internet access. And the Facebook staff is always thoughtfull and patient to assist you in everything you need.

Very impressed by this company's customer service. I was scheduled to vacation in Seoul in July, but ended up having to undergo emergency surgery at home and was grounded. In trying to recover the major costs of my cancelled trip, I'd completely forgotten about the little details like SIM cards. KRSIM emailed a follow-up after I was supposed to have picked up my card, checking to see if everything was OK. When I told them what happened and forwarded them the hospital's letter, they confirmed I'd not picked up my card and issued an immediate refund with their sympathies. They were under no obligation to do so. Attentive, honorable people over there. If I finally make it over to Seoul, I would be more than happy to patronize their business and encourage others to do so as well. So nice to find good, honest people in the tourism industry.

I have great experience with this website and it is easy and friendly use and I got SIM card fast less than 24 hours by ordering it online Highly recommend for 30 Days usage or less if you are visiting South Korea

I recommend this service because is really easy to pay and get the sim card. The Support service is excellent, they support agents are very kind and they solve all the issues with great dedication, even on weekends.

Very convinient when you are travel backpack as you can instantsly look at your necessary info when needed. Very fast internet access. No problem with hot spot connections~

Convenient pick up at Incheon airport. The staff helped us set up the card. Good connection throughout the entire trip.

It is so usefully. Good service, i can use internet in everywhere, good connection. Nice to help me find the way easily.

Fast and stable network. Easy to use and able to access in a subway metro line. Looking forward to use it again for the next holiday trip.

Always an excellent choice to buy and use this SIM card for my Korea trips. Fast data service and very convenient collection.

Good sim and good supporter

Quick replies. Friendly. Speaks English! Fixed a problem right away.

Very good service to install the sim card and very good connection so far!

In terms of data speed, this would definitely be a 5! : ) Network is very much reliable.

However, the ease of pick-up can still be improved. The lines are long, and is rather confusing because the booth is rather difficult to find in the departures area.

Otherwise, I would very much recommend getting this sim!

我第一次来韩国了，原因就是去陌生的地方，所以对旅游又紧张又期待。韩国很有名的旅游国家吗，化妆品、衣服都是很时尚的。韩国人挺喜欢打扮，男生帅女生美。我在网上热情地搜索过韩国旅游时注意事项，韩国旅游时必须去过的地方等等。那时我发现了这个网站，感觉很老号的。百度搜索哪儿都能看这个网站。其实商品也挺好用的，有值得商品。能拨电话！这个是本商品的最强点，而且不限流量！！！我才知道这个公司的产品为什么韩国旅游时必备品。

橙子手机卡用得方便，无需注册！skt通信公司的吗，挺好用的。每天至2GB能用LTE超级快！只是流量而已，可是能接电话的，挺新奇~

They were very polite and patient when I missed my pick up for the SIM card. Helped me through the process, gave me several options, and checked to make sure everything went well!

Stanley has been exceptionally helpful and very responsive on FB messenger and he answered all my questions very promptly and even went out of his way to find the contact centre number and plan for me. I am very impressed with the quality of service given by krsim and would definitely purchase a sim from them! Thank you Stanley! :)

This is a sim card you can trust.

The first trip to Korea went smoothly thanks to this card

Best of all, you can make phone calls with your friends and enjoy extremely fast data speeds.

If there are any difficulties, the pick-up desk will solve everything

I really very truly liked it <3

Check https://simkorea.blog . 30 days Orange offers 4G LTE 60GB and unlimited FUP. haha. No activation was good, too.

https://medium.com/@siminsouthkorea/what-is-the-best-sim-usim-for-travelers-in-south-korea-5f2c2a600d82

Researched 3 days! and finally good article led me to find this. Bought 2*10 days Orange for my 20 days trip. Working perfect~!

2GB per each day. Good~

The sim card was very convenient as I was able to find my way through and hotspot my data to my traveling companions.

the man is very kind，language is very good，quite helpful.

If you’re in need of fast and reliable 4G LTE + 100 minutes of outgoing calls and 100 outgoing texts (incoming is free), make sure to purchase in advance on their website or just find a booth at the airport terminal. Receiving and activating my SIM took only a couple minutes without any hiccups. I had the 10 day SIM Blue plan, which was cheaper than any of the competitors because of the online discount. I travelled mostly in Seoul and Busan but also went out into the countryside and I still had strong signal no matter where I went.Also, whenever I had a question or issue, the Facebook messenger customer service agent was very helpful.

I highly recommend this service when visiting Korea.

Really easy and fast! Got it done within 5-10 mins and it worked perfectly! Data was excellent and I could share it with my Friend via hotspot (good for saving money). Climbed Mt. Hallasan and I could still receive signal the whole way!

Everyone at the company was amazing!!! They are all such friendly people and were so helpful. I highly recommend these guys �

 激动激动鸡冻 ：）我本来想租个WIFI蛋，可是不想原地还件啦，充电啦，我会烦呢。所以这次我买过了这家的手机卡，我直接在网站买过了。下飞机后我就开始找WORLDROAMING取台去了，从门出来就容易找到了那个地方。虽然手机卡使用前我得用护照注册，可是注册完就能使用了。注册不是那么复杂的，感觉2-3分钟而已。这个商品是旅游时必备品。谢谢！

awesome! it's first time what I used. it was a nice thing, has good price and good contents. definitely, I am satisfied. So I'd like to give five stars. As for sim, User just has to do in instruction before use.

hello! I LOVE KOREA! I've used sim for 7days. it was amazing!!! I had to register, it made me a little bit bother, anyway I was comfy with sim card. actually I thought I get used to living without phone during I was in korea but I couldn't leave a phone 24/7.

sim made my trip better, I could save data for when I really need it. sim card is an important role on travel. I still could touch my families and friends with sim card. I really really appreciate to staff who helped me. Korea is one of the most awesome places I've ever been. so I hope that you guys come to korea for visiting, enjoy with sim card!

Best customer service! Purchase online and pick up at the airport, or have delivered to you. Super easy install and set up instructions provided with FB messenger customer service available with quick responses. I've used the service 4 times now. Thanks so much!

Really good and fast. Very reliable in terms of data coverage and speed and really worth the money.

Amazing service that was super helpful for our needs! Definitely the place to go if you're a foreigner needing a SIM card in Seoul.

We received amazing service at this location and the staff was incredibly friendly and helpful. They speak very good English, and are wonderfully accommodating. Would definitely recommend this place to anyone in need of a SIM card, especially foreigners!

It’s so convenient that I can get the SIM card easily at Incheon airport by showing the receipt on mobile. The mobile signal was good and I could access to the internet anywhere in Seoul without a problem!

Easy to locate the pick up desk in the airport, easy to use, and fast connection!

Superb. Recommended.

The pickup location is really close and nice.

I have never found unlimited data service with phone number at this price but here.

Absolute solution.

Recommended.

It suddenly didn't work as soon as I used it.

I was so embarrassed that I asked for help in a Facebook message.

He asked me if I had done activation...!

Then I did STEP 3 as per the manual :)

Luckily, it was used right away 5555555

Thank you for helping me

Ifyou gonna buy a south korea sim card, here and this is the one you need :D

The internet speed is fast and the crew super helpful! And main point is There’s no issue will be left once you finish using the sim card!

Due prev visit now i had issue about to use another sim card :( but this friendly crew who cant lemme knw he or her name lols... he or she did help me on this issue... never enough to say thank you :)

And again If you gonna buy a south korea sim card, here and this definitely is the one you need :D Strongly recommended!👍🏻

Outstanding customer service. I was in the city and couldn’t get prepaid SIM from KT shop near Gangnam station. In desperation I got WiFi at nearby restaurant and found this place. I messaged them via FB messenger and got reply almost immediately (earlier today 8:30pm Korea time). The customer service rep went out of his/her way (couldn’t tell) to help me even sending me the exact location of the mini mart that sell the Prepaid SIM. The CS rep even called the mini mart to check if they have the SIM in stock! Seriously outstanding service. This CS rep solved the problem in 10 minutes what incompetent staff at said KT shop couldn’t in one hour

Great SIM and value. 10GB of unthrottled data (data can still be used after) for 15 days. To extend, just use the app and pay an extra fee.  It was the only Sim I could find that allowed top-up and had a 15 day option (instead of 10 and 30) so this was a no brainer. There's also free access to KT wifi via KR SIM customer service, which is a Lifesaver when you exceed the 10GB and want to watch videos on long train rides! Re VOIP calls, FB calls work.

The counsellor on Facebook messenger is always ready to answer. Unbelievable. That is so impressive.

Mobile internet service quality is second to none. outstanding! Never experienced anywhere.

The best sim as far I know. Ive never found more attractive South Korea prepaid SIM than this. Recommended.

Korea Sim went above and beyond to help me during my trip. I had purchased a Blue LTE sim which for some reason would only connected to 3G. After various failed attempts to connect to the LTE network, I was content with using the 3G network for the rest of my trip but was told by staff that I paid for LTE and deserves to use LTE. They went out of their way to reset the values for me and by day two I was on the LTE network! Definitely recommended!

외국에서 친구 올 때마다 하나씩 선물합니다. 전화번호, 통화도 할 수 있어서 한국 내에서 꼭 붙어 있을 필요도 없이 서로 연락하기 딱입니다. 데이터 속도에 감탄들 합니다. ㅋㅋㅋ

So fast service and very friendly! U Can ask help anytime! It saves my day! Thanks a lot!

I tried to activate the SIM by online at '4AM'. And it was done immediately!! It must be an automatic process.

If the advance purchase makes you nervous,

www.facebook.com/krsim

Please use this message.

This page message away my anxiety.

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

The speed is also good.

韓国にしきりに遊びに来ているが、いつもここにショッピングモールを利用しています。

今回新しく出たblue sim cardを使用してみたけど本当によかったです

旅行を本当に楽に作ってあげました。

It was easy to find the booth for the simcard. The internet was fast and the signal was good, even in areas outside Seoul. Will buy again when I go to Korea soon.

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.

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

The customer service is excellent.

The product is also very good.

kkkk:)

Fast service and data card works just fine. Confirmation email came quickly too and directions/ instructions were very clear. Satisfied customer.

Thanks Krsim.net for providing such service! It was hassle free. I will definitely use krsim in the future!

This data plan was awesome! Super recommended for South Korea travelling. With high speed internet, you can post your photo and video to social media without worry in anywhere anytime whenever you like!

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!

It was easy to purchase and redeem the SIM. krsim facebook message is fast in responding your question.

光是比現場購買便宜就值得推薦了，一下飛機直接找櫃檯處理，抽完號碼牌、拿卡、測試ok、走人，在韓國已經用了四天，網速不錯

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.

I was looking for an international sim card.

International call is really really reallyreallyreallyreally cheap here.

Does it make sense to call the United States at one won per second?

That's amazing....

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

The internet speed is very stable and fast enough to stream any video online i.e. youtube, netflex with no issue. Highly recommend to use it during travel in Korea.

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

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.

Very good experience. It is very convenient and easy to take the card. With good speed!!!!

The signal is 4G LTE and i really loved it.. When my friend are keep looking for the public wifi, i can keep calm because this sim card really useful.. Furthermore, its more affordable than rental the portable wifi if you are travelling alone for a long time.. <3<3<3<3<3<3<3<3<3<3<3♡

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.

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。

Surf everywhere. You will find yourself buying here. :)

convenient to order and collect the SIM card from the airport counter. No need to explain in English/Korean with the staff.

Awesome!

The unlimited data came in helpful especially when you are separated from your group or friends when walking around and needed to google or call them (whatsapp).  Other than that, krsim has provided a splendid experience for us.

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~

訊號品質十分穩定，人多處收訊狀況也良好，非常方便！

Really reliable. No issues and very easy and fast to claim.

This is the cheapest place to go

The procedure of collecting the pocket wifi is easy, the speed is super fast enough.

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

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

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.

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

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.

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

International phone is cheap

The product was expensive, but I was satisfied because 4G LTE was really fast,,

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

This is the best mobile WiFi I have used. Redemption and return was easy. Connection had been good for all 5 days I’ve used it. Battery lasts the whole day, longer even!

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

Very good internet connection with no difficulty in settings up The stuff also very friendly

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!

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.

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!

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.

スタッフはとても良かったです。

そして旅行する上で大変役になった。

So gooood :)

Definitely  going to order again next time

Great :)

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

Perfect, fast connection

☆ I would like to commend on the excellent customer care service delivered by the company for their patience, sincerity and dedication throughout 2 full days of constant trouble shooting n follw up to help me connect with my teenage child in Korea. ☆

This sim card worked well in Korea, fast connection, very convenient to looking for places, getting information, and connecting with friends easily

Facebook Message customer center is really great.

I used it and feel very good, fast.

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

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!

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.

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.

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

This data plan was awesome !With high speed internet, you can post your photo and video to social media without worry in anywhere anytime whenever you like!

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

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

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

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!

Thật sự rất hay GOOD!

The price of the product is high, but the international calls are really cheap.

Buying the product was a good choice.

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

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.

Quick, simple and reliable

Easy to locate. Setup pretty straightforward and no fuss. 4G speed was fast and unlimited as advertised. Very satisfied. :)

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

Overall, I'm satisfied with it.

It's fast, and international calls are cheap.

Would suggest to get this SIM card instead of the egg wifi as it’s unlimited and may access to internet anywhere anytime 24/7.

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!

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

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!!!

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!

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

Cheaper than purchase at the local KT Olleh counter. Simple and quick when collect the sim card.

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.

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

在機場領取很方便，沒有流量限制可以安心上傳照片和影片，隨時分享旅行的時刻，大推！

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

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

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

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

It took some time before I got it working. Overall, excellent service. The connection and speed is great. Highly recommended.

Fast Speed and great coverage. Highly recommended!

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

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!

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

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! (:

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

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!

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.

The redemption process was a breeze! The staff at the counter was very patient with us although we forgot to check the size of the SIM card before approaching the counter.

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

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.

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!

You can buy SIM CARD at Incheon Airport.

But it was much cheaper to live online.

I recommend you to buy here!! ;-(

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

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

excellent 4G connection as always! very convenient and user friendly. Will always purchase this SIM card whenever i go to Korea

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.

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

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.

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.

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.

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.

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

It's so fast.

這是第一次用這個卡，這5天首爾釜山都有去，收訊真的很好，以後去一定會再使用♡

It was very fast and easy to obtain, helped us a lot in regards to navigating and exploring more remote neighborhoods and trains

Smooth and quick process of getting the sim card upon reaching airport. Connection and signal were all good!

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

真的很方便也很好用!!也超級划算~我10天無限亂用~真的下次一定會再繼續購買!!

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.

訂購流程非常快速方便，價格也不會太貴，非常推薦，下次若有需要也要再次購買

it is fast response to buy the sim card in the web site and easy to get the sim card in korea, and the 4G/LTE is stable when connect internet.

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

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.

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!

The connection was good and trustworthy. it's especially good when you are on business trip.

Buying this SIM card is one of the best thing I ever did on our Seoul trip. It made navigating easier and I stayed connected with my family and friends wherever I go. You get unlimited data at super fast internet speed, I couldn't ask for more.

韓国に出張に来るたびにここsim cardを使用しています。

本当に満足しています

電話や文字とデータが全部できます。

It's much cheaper than buying it at the airport convenience store or ICN desk!

The goods are identical.

I'd like to recommend you buy in advance.

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.

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

I'm satisfied.

The international calling is really cheap!!

4G data is really fast!!!

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

Because so kind the answer to your Facebook message.

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 :):):)

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

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.

It was fine:) Didn't have much problems with it. Staffs also helped when i had trouble installing the sim card.

Very fast, easy to get the wifi router at the airport. The internet speed is good, basically no problem.

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

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

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.

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

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

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

excellent 4G connection as always! very convenient and user friendly. Will always purchase this SIM card whenever i go to Korea.

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

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.

Great. Very cheaper than when you buy at the airport. Very easy when you find the place and take it.

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

Sim card est très bon.

It was great and easy to activate

The data speed is good. I can do video chat without lagging while walking in the street. It is highly recommended.

Hello, krsim facebook message sevice very good .

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!

The goods are too good, but the price is too expensive.

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.

Good luck with your customer response to Facebook.

The network speed is fast with good coverage.

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

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

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

Good~

    Very good. The network is great whether it is easy to share with friends in Busan or Seoul.

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

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

The internet speed and coverage are good. Also, easy to activate and no need to return after use!

 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

convenient pick up at airport!

The speed is great! It's made my trip more convenient because I frequently use it to connect a gps.

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

Extremely convenient and hassle free!

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.

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

Quick online help when the SIM card didn't activate due to a problem with my phone. I was worried I was in for a hassle, but things were handled in a professional and friendly manner. Best price I found at the airport, too!