Entering South Korea

A Foreigner’s Guide On How to Buy Sim Card in Korea?

Are you traveling to Korea? Well. Then you must be worried about how to buy sim card in Korea. If you ever have been out of your country, you must know it is important to check sim cards before leaving. As a traveler, you need to make sure if your current sim card can work in the other country. If not then you must get a new sim card.

So, if you are traveling to Korea, you should buy yourself a prepaid sim card. To have internet access and to make local and international phone calls, you must hurry up your purchase.

Select your sim type to buy sim card in Korea

Like all the other countries, Korean telecom companies offer a lot of sim card options to the users. From prepaid to post-paid, you can enjoy every type of service.  You must choose a service that best suits you. However, we recommend our readers to go with an unlimited data sim card. We believe it is the most feasible and efficient option available in the market.

In case you are wondering about internet speed, we assure you that Korea offers incredible internet speed. Not any specific, but all the available sim card offer high internet speed but the problem arises when people opt for sim cards that offer limited internet. That’s why we said above go for sim cards that offer unlimited internet.

Before You Buy Sim Card in Korea


We know you are eager to get your hands on a sim card so that you could connect with your friends and family but hold on. The sim card will be of no use if your phone isn’t working. Yes, you read that right. Your phone couldn’t work because of the following reasons:

  • Phone blocked
  • The phone doesn’t support GSM Network frequencies

The Korean government has the right to block the phones and gadgets of visitors for security and privacy reasons. Whatever the reasons are, you will be unable to use your phone if you don’t try to get hold of them.

What to do if the phone is locked?

In case, you find out that your phone has been blocked, hurry up to contact your mobile phone carrier. Ask your phone carrier to unlock it.

Especially if you are a resident of the US, Canada, or Japan, you have to check with your carrier before travelling to Korea. If you don’t follow this instruction your phone will be locked and you won’t be able to buy sim card in Korea.

To communicate your problem the right way, you must know Korean language. You can learn the Korean language in many ways and trust us when we say that, it is not as difficult as it sounds.

What to do if your phone doesn’t support GSM network frequencies?

Okay, this is something quite frustrating. First of all, calm down and check out detailed phone information. Once you find it doesn’t support GSM network frequencies, check out if it compatible with following GSM network frequencies:

  • 4G LTE Bands: Band 1(2100MHz), Band 3(1800MHz), Band 8(900MHz)
  • 3G Bands: HSDPA 2100MHz/HSDPA

How Much Does It Cost To Buy Sim Card In Korea


When we travel to a new country we are not sure if we are paying the right amount for a product or if the natives are charging us more. We do care about our readers and we want to keep you safe from any such theft and fraud.

For your convenience, we have collected the average price of sim cards in Korea. According to our estimate, a 3G sim card can cost you ₩ 5,500. On the other hand, a 4G sim card may cost you ₩ 8,800.

Appropriate SIM Card Size

If you have an iPhone, the Nano-sim card is the best choice for your phone. If you are an android user both micro and Nano sim cards can work for you. However, we recommend you to check your phone specifications before you buy sim card in Korea

From where you can Buy Sim Card in Korea


Due to Coronavirus (COVID-19), foreign passengers have to stay in quarantine for a few days. For this reason, they can’t leave the inspection or isolation area and go out shopping. For your information, you have to buy a sim card even if you are in 14 days self-isolation at the airport.

So, if you are land in Korea and immediately get into isolation, we recommend you to buy a sim card online. Browse the site of your favourite telecommunication company and place your order with them.  Undoubtedly, this is the easiest and quickest way to buy sim card in Korea.

On the other hand, if you want to buy a sim card offline, we suggest you check out telecommunication companies airport counters. The most prominent telecommunication service providers of Korea like KT, SKT, LG U+ will be there to assist you.

We hope our detailed sim card buying guide helped you. Still, if you have any queries, we are here to answer them feel free to drop them below.