Here's how to buy USIM at Incheon International Airport
Find a USIM store in the airport
There are several USIM stores within the airport terminal, mainly located near duty-free zones and arrivals halls.
Choose a USIM product
Choose a USIM plan that suits your purpose and duration. Check the data capacity, expiration date, and more.
Purchase and opening
Purchase a USIM card from a USIM store and proceed with the opening process with the help of an employee. You may need your passport or other ID.
Setting up and using
After opening, it can be used by recognizing the USIM in the smartphone setting and completing the network connection.
If you have any questions such as installation and how to use it when purchasing a USIM, you can contact the store staff for help.
The following carriers are recommended when purchasing USIM when traveling to Korea
SK Telecom
It is the largest carrier in Korea and has the widest coverage nationwide.
It has excellent data speed and call quality, and offers a variety of SIM plans.
It is easy to purchase USIMs at airports and tourist attractions and is convenient to use.
KT
It has a communication infrastructure comparable to that of SK Telecom.
It offers a reasonably priced USIM plan and is advantageous for data use.
There are many stores nationwide, so it is convenient to purchase USIM and AS.
LG U+
We offer the cheapest USIM plan among the three major carriers.
Data speed and call quality are also excellent, and coverage has improved recently.
USIM purchases are available at airports and tourist attractions, but there are fewer options than other carriers.
It is recommended that you choose a carrier that suits your purpose and budget. Please contact your staff for detailed information when purchasing USIM.
USIM card usage is as follows
Remove an existing SIM card
Remove the existing SIM card from the SIM card slot on your smartphone.
Insert a SIM card
Insert into the SIM card slot with the metal contact surface of the SIM card facing down.
USIM card recognition and network connection
Your smartphone automatically recognizes your SIM card and connects to your network. If you can't connect, you might have to manually set up your network.
Using currency and data
You can make calls, text messages, and use data through your SIM card.
Charging and managing your SIM card
If the USIM card runs out of data and call time, additional charging is required. If you lose your SIM card, you must immediately block and reissue it. If you experience any problems while using the USIM, please contact the USIM vendor or carrier for help.