| Data Usage Specifications | Unlimited data, 500MB, 1GB, 2GB, 3GB |
| Transmission Specifications | 4G |
| Signal Coverage Area | South Korea |
| Mobile Carrier | SK / LG U+ |
| Supported Sizes | eSIM |
| Hotspot Sharing | Unavailable |
| Supported Frequencies(4G) | B5(850 MHz), B3(1800 MHz), B1(2100 MHz) |
| Excludes | Voice calls, Texts |
| Not Supported | SIM-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 Type | Roaming |
| Mobile Virtual Network Operator (MVNO) | China Mobile International Limited |
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)
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.