Korea eSIM All-in-one/Unlimited Data eSIM｜Dosirak eSIM
- Essential travel items for Korea: Use a usable eSIM without replacing the SIM card.
- You can enjoy Internet data right after arriving in Korea without having to receive a separate SIM card.
- You can use it by simply scanning the QR code on the voucher sent after confirming your reservation and installing it.
- There is no risk of losing it as it is not a physical SIM card.
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.
How to check if your phone has an eSIM module On the dial screen, press *#06# → If there is an EID in the device information, eSIM can be used.
- eSIM User Guide
Korean [iOS/Android]
English [iOS/Android]
Japanese [iOS/Android]
eSIM QR code shipped the same day
eSIM enabled terminals
Rate Plan
How to install and use eSIM
eSIM Notes
eSIM Installation Video - iPhone (iOS)
eSIM Installation Video - Android
SIM Card Specifications
| Data Usage Specifications | Unlimited data, 500MB, 1GB, 2GB, 3GB |
| Transmission Specifications | 5G/4G |
| Signal Coverage Area | South Korea |
| Mobile Carrier | SKT / LG U+ |
| Supported Sizes | eSIM |
| Hotspot Sharing | Available |
| Supported Frequencies(4G) | B1（2100 MHz） |
| Top-Up Availability | Top-up unavailable |
| Excludes | Voice calls, Texts |
| Not Supported | SIM-locked device, Carrier-customized device, Mobile hotspot |
| Network Type | Roaming |
Important Info
Reminders
Please make sure that the model of the mobile phone you wish to use eSIM with supports eSIM service before purchasing. [Refer to the details page]
If you are a customer who has set up a mobile phone protection service, you must unlock the SIM card and deactivate the mobile phone protection service at your mobile carrier's customer service center or on their website in order to use the service.
After purchase, product information (QR code) will be sent via email and KakaoTalk notification. Exchanges and refunds are not possible after the QR code is sent or scanned.
To register the eSIM product you purchased on your device, you must have data available (cellular network or Wi-Fi connection mode).
If you delete the registered cellular plan after scanning the QR code, eSIM cannot be used, so please maintain the plan until use is terminated.
It can be pre-installed at the departure location and the usage period starts from the time of connection to the destination network.
If possible, turn off data roaming for your domestic telecommunications company before leaving the country. (Incorrect operation may result in roaming charges overseas.)
Depending on the communication environment of the local telecommunications company, data usage may not be smooth in some areas, and depending on the model used, if the frequency band does not match that of the local telecommunications company, it may connect to 3G or 2G.
The terms and conditions of the telecommunications company that provides the service apply and product options (data provision, number of days of use, promotions, etc.) may change without prior notice.
If eSIM registration is not successful or cannot be used after registration (※ eSIM must be installed), please contact the customer service center. We cannot provide assistance after purchase, and returns/refunds are not possible. [For domestic use in Korea: 1566-9070 / When calling from overseas: 02-775-1401]
Once deleted, eSIM cannot be rescanned or recovered. If you are unable to use the service due to your own negligence or lack of understanding of the usage instructions, as above, you will not be eligible for a refund.
Exchanges and refunds are not possible after the QR code has been sent or scanned.
In case of unavailability due to local telecommunications company network maintenance, natural disaster, or other reasons, no refund will be made.
eSIM User Manual Korean [iOS/Android]: https://wmstgbb001.blob.core.windows.net/wm-images/market/KR_eSIM_Manual_iOS_AOS.pdf
eSIM User Manual English [iOS/Android]: https://wmstgbb001.blob.core.windows.net/wm-images/market/EN_eSIM_Manual_iOS_AOS.pdf
eSIM User Manual Japanese [iOS/Android]: https://wmstgbb001.blob.core.windows.net/wm-images/market/JP_eSIM_Manual_iOS_AOS_v2.pdf
How to Use
STEP 1. ▶Purchase◀
- Please select the desired eSIM data capacity and usage period.
- Once your order is confirmed, a QR code will be sent to your email and mobile phone. (* If you do not receive it, please request it again through the customer center and we will send it immediately.)
*Orders placed between 9:00 and 18:00 every day will be shipped on the same day at 4-hour intervals. (Orders placed after 18:00 will be shipped the next day. Shipping time may be slightly delayed depending on the order volume.)
STEP 2. ▶Settings◀
1. Open Settings > Settings menu
- Select ‘Add Cellular Plan’.
(Additional rate plans are only available in network environments)
2. Add cellular plan > Scan QR code
- Scan the QR code image received via text or email.
- If the QR code cannot be scanned, you can set it manually.
3. Rate plan label and usage line designation
[Rate Plan Label]
- Existing SIM → Main
- eSIM (local SIM) → Auxiliary (freely set for travel, work, etc.)
[Basic line]
- Existing SIM → Calls/Messages, iMassage/FaceTime
- eSIM (local SIM) → Cellular data (switching allowed OFF)
4. Settings > Cellular > Turn off Cellular Data Toggle
- When using overseas, block cellular data conversion before use so that the existing SIM (main) cannot be used for data.
* If you turn on data roaming while selecting 'Main' as your cellular plan, roaming charges may be charged by your domestic carrier (main line).
5. APN manual setting (when data is not available)
- Settings > Cellular > Cellular Plans > Select eSIM Plan > Cellular Data Network
- In most cases it is set automatically, but sometimes you may need to change the APN information.
* Check the details page of the product you purchased for APN information.
Cancellation Policy
- Once the order has been completed, it cannot be canceled, modified, or refunded
- 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
A Dosirak eSIM offers several advantages over a physical SIM card. It eliminates the need for physical card swapping, reducing the risk of losing your original SIM. Activation is typically done by scanning a QR code, allowing for immediate internet access upon arrival without waiting for delivery or pickup. Both provide data, but eSIMs offer greater convenience and flexibility for modern, compatible devices.
Both KT and LG U+ are major network providers in South Korea, known for their extensive 5G/LTE coverage and reliable service. The "better" choice can depend on your specific travel route, but generally, both offer high-speed data and strong connectivity in most urban areas and popular tourist destinations. Users often report excellent performance from both providers.
Generally, using a Korean eSIM for data services is more cost-effective than relying on international roaming provided by your home country's carrier. eSIM plans are specifically designed for travel, often offering dedicated data packages at competitive rates. International roaming can accrue high charges for data usage, making eSIMs a budget-friendlier option for most travelers.
A Dosirak eSIM primarily provides mobile data connectivity. For making calls and sending texts, it typically relies on internet-based communication apps such as WhatsApp, Line, or KakaoTalk, using its data connection. If traditional local calls and SMS are needed, some eSIM plans might offer an optional add-on for a local number, but this is not a standard feature for all data-only eSIMs.
A Korean eSIM offers superior convenience compared to a Pocket WiFi device. You don't need to carry an extra device or worry about charging it. Installation is digital via QR code, allowing immediate use. Unlike Pocket WiFi, an eSIM is directly integrated into your phone, preventing the need to pick up or return equipment and avoiding potential loss or damage fees for a separate device.
Installing the Dosirak eSIM is straightforward. After purchase, you will typically receive a voucher containing a QR code via email. To activate, simply scan this QR code with your compatible smartphone's camera or through your phone's settings (usually under "Cellular" or "Mobile Data"). Follow the on-screen prompts to add the eSIM profile. The eSIM can be activated within 24 hours of purchase, providing immediate internet access upon arrival in Korea.
To use a Dosirak eSIM in Korea, your smartphone must be eSIM-compatible and unlocked. Most newer smartphone models from Apple (iPhone XR and later), Samsung (Galaxy S20 and later), Google Pixel (Pixel 3 and later), and other manufacturers support eSIM technology. It's recommended to check your specific device's settings or manufacturer's specifications to confirm eSIM support before purchase.
Get Help
