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Product #121499
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Korea eSIM advertisement featuring a young person holding a phone showing 'USIMSA Korea eSIM' against a beautiful Gyeongbokgung Palace night view, promoting travel internet for Korea.

【50% OFF】South Korea eSIM | KT / SK

4.5Very Good
Sold 30K+

No cancellation

  • Supports iOS one-click installation: Update to the latest version of the iOS App and iOS 17.4 or above to install eSIM with one click in the KKday App.
  • Available throughout Korea!
  • Ready to use right away without the hassle of pickup, delivery, and activation application
  • No need to remove the SIM card, no more worries about the SIM card!
  • Unlimited data usage (speed slows down after 500MB/1GB/2GB/3GB used per day)
[5% App discount] Code: APP5OFF , HK: APP15HK
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Package Options

Product Info

The content of this product is provided by machine translation and may not reflect the actual information, please take this into consideration before booking.

eSIM applicable models

Thai version of the eSIM compatible device list, detailing supported smartphone models from Apple, Samsung, Google, Huawei, Motorola, and important usage notes.

eSIM Usage/Registration Procedure

English eSIM installation instruction infographic, guiding users through nine steps with smartphone interface screenshots to activate their eSIM conveniently for travel.

SIM Card Specifications

Data Usage SpecificationsUnlimited data, 500MB, 1GB, 2GB, 3GB
Transmission Specifications4G
Signal Coverage AreaSouth Korea
Mobile CarrierSK / LG U+
Supported SizeseSIM
Hotspot SharingUnavailable
Supported Frequencies(4G)B5(850 MHz), B3(1800 MHz), B1(2100 MHz)
ExcludesVoice calls, Texts
Not SupportedSIM-locked device, Carrier-customized device, Mobile hotspot
Reminders

・Data limit: Speed decreases after 500MB/1GB/2GB/3GB per day (unlimited capacity)

Validity: The eSIM is valid for 6 months. After registration, it can be used on the selected dates.

Network TypeRoaming
Mobile Virtual Network Operator (MVNO)China Mobile International Limited

Important Info

Includes/Excludes

  • eSIM

Reminders

  • Please ensure your phone supports eSIM before purchase. Once the eSIM QR code is sent, this product is non-refundable.

  • Only iOS 12.1 or later is supported. iPhones purchased in Mainland China, Hong Kong, or Macau do not support eSIM.

  • If your phone cannot scan QR codes, please print the voucher in advance or install a QR code app.

  • The eSIM can be used immediately after installation. During installation, you must be connected to Wi-Fi or a mobile network. It is recommended to install it before departure or use free Wi-Fi at the airport.

  • The eSIM can be used immediately after installation. After confirming your travel dates, register the eSIM on your selected usage date.

  • Usage/Registration Procedure: iOS [Korean] https://asset.usimsa.com/kkday/manual/ios-esim-ko.pdf

  • Usage/Registration Procedure: Android [Korean] https://asset.usimsa.com/kkday/manual/android-esim-ko.pdf

  • Days Calculation Method: 24-hour system (3-day pass opens (activates) at 10:00 AM on September 1, ends at 9:59 AM on September 4)

How to Use

  • How to use
  1. You can also use your voucher to obtain a verification code.
  2. Scan the QR code on your phone to install the eSIM.
    * Before use, make sure data roaming is enabled.
    * If your phone cannot scan QR codes, please print the voucher or install a QR code app in advance.

Please refer to the data on Apple's official page .

If an installed eSIM is deleted, we will notify you in advance. You must rebook, as it cannot be reinstalled.


  • FAQs

Q: What if the APN settings do not activate automatically?
A:
1. Follow the APN setup instructions provided in your eSIM voucher. 

2. Restart your phone, check if the eSIM is recognized, and confirm the connection. 

3. Contact your phone manufacturer or telecom provider to ensure the device is properly unlocked. 

4. Check with your domestic telecom provider to confirm that mobile protection services are not interfering.


Validity Period

  • Valid for use within 180day(s) from the date of issue; Invalid after expiration

Cancellation Policy

  • Once the order has been completed, it cannot be canceled, modified, or refunded
NOTE
  • Due to time zone differences, the confirmed cancellation date is based on the supplier’s local time. Please allow 2–5 business days to process your cancellation request, after which the cancellation fee will be charged according to the product’s cancellation policy. Once the cancellation is confirmed, you will receive your refund within 14 working days.

FAQ

1. What is the internet speed and reliability for an eSIM in South Korea?

South Korea boasts highly advanced internet infrastructure, ensuring excellent connectivity. An eSIM leverages major local carriers like KT or SK, offering reliable LTE speeds throughout the country. You can expect smooth browsing, streaming, and communication. Although data is unlimited, the speed will adjust after reaching a daily high-speed usage threshold (such as 500MB, 1GB, 2GB, or 3GB), allowing for continuous basic internet access.

2. Which phone models are compatible with an eSIM service in South Korea?

Most recent smartphone models support eSIM functionality. This includes iPhone XR, XS, and all newer series (11, 12, 13, 14, 15), many Samsung Galaxy S20 series and later, Fold/Flip models, and Google Pixel 3 series and newer. For Apple devices, ensure your iOS version is 17.4 or above to utilize convenient one-click installation features. Always verify your specific device's compatibility in its settings or with the manufacturer before purchase.

3. How is an eSIM for South Korea activated and installed?

Activating an eSIM for South Korea is straightforward. For iOS devices running iOS 17.4 or above, installation is simplified with a one-click option available through the booking platform's app. Alternatively, you will typically receive a QR code via email; simply scan it using your phone's settings to add the data plan. Manual installation with provided details is also an option. Ensure you have an internet connection during setup. The eSIM activates instantly upon arrival in South Korea, eliminating the need for physical pickup or additional registration.

4. What happens to data speed after reaching the daily limit on a South Korea eSIM?

Once your daily high-speed data allowance (which could be 500MB, 1GB, 2GB, or 3GB, depending on your chosen plan) is consumed, the internet speed will be throttled. While you still retain unlimited data access for the rest of the day, the reduced speed is generally sufficient for basic tasks such as messaging, navigating with maps, and checking emails. Streaming video or downloading large files will be considerably slower. High-speed data allocation refreshes daily.

5. Can an eSIM for South Korea be used throughout the entire country?

Yes, an eSIM for South Korea offers comprehensive coverage across the entire country. This ensures you remain connected whether you are exploring bustling metropolitan areas such as Seoul, Busan, or Daegu, or venturing into more remote or scenic tourist locations. The service operates on robust national mobile networks, providing consistent connectivity wherever your travels take you within the Korean peninsula.

6. Is it necessary to remove my physical SIM card when using a South Korea eSIM?

No, you do not need to remove your physical SIM card to use an eSIM in South Korea. A key advantage of eSIM technology is the ability to maintain multiple network profiles on a single device. You can keep your primary SIM card installed for calls or messages from your home country, and activate the South Korea eSIM specifically for data services during your trip, allowing seamless management of both connections.

7. How does using an eSIM for South Korea simplify internet access compared to a physical SIM card?

An eSIM streamlines internet access in South Korea by eliminating several hassles associated with physical SIM cards. There is no need for physical pickup, delivery, or manual activation upon arrival. The eSIM can be digitally installed prior to your trip, often through a convenient one-click process. This means you avoid the risk of losing your home SIM card, bypass queues at airports, and are instantly connected to the internet as soon as you land in South Korea.

8. How can I check my daily data usage when using an eSIM in South Korea?

To monitor your daily data usage with an eSIM in South Korea, you can typically check your phone's settings. On both iOS and Android devices, navigate to the "Cellular" or "Mobile Data" section. Within these settings, you should find detailed statistics for your eSIM data plan, showing current consumption. Some eSIM providers may also offer a dedicated application or a web portal for more precise real-time tracking of your usage.

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