Japan & Korea eSIM | 5–6 Days for Use in Japan & Korea | Recommended for Japan–Korea Cross-Border Travel
- A new choice for Internet access, no need to change SIM cards, enjoy 4G Internet access quickly and smoothly without any hassle
- Once you receive the voucher, you can scan it and install it, without having to go back and forth to get the physical card or wait for it to be delivered.
- Environmentally friendly, no consumables, free shipping, zero risk of loss
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 compatible mobile phone models
eSIM installation and activation process
SIM Card Specifications
| Data Usage Specifications | 1GB, 2GB |
| Transmission Specifications | 4G |
| Signal Coverage Area | Japan, South Korea |
| Mobile Carrier | Japan: KDDI / DOCOMO, South Korea: SKT |
| Supported Sizes | eSIM |
| Hotspot Sharing | Available |
| Supported Frequencies(4G) | B1（2100 MHz）, B3（1800 MHz）, B8（900 MHz）, B7（2600 MHz）, B12（700 MHz） |
| Top-Up Availability | Top-up unavailable |
| Excludes | Voice calls, Texts |
| Not Supported | SIM-locked device, Carrier-customized device, Mobile hotspot, iPhone models below iPhoneXR, iPhone made in China |
| Reminders | ・Once you arrive at your destination and activate your eSIM, the validity period will begin. |
| Network Type | Roaming |
Purchase Notice
- Please pay attention to whether the mobile phone version and model are compatible with this product. If you cannot use it due to non-confirmation, no refund will be given.
- iOS version 12.1 or above is required. iPhones sold in China do not support the eSIM function, and some mobile phones in Hong Kong and Macau do not support the eSIM function.
Includes/Excludes
Reminders
A QR code can only be scanned once with one mobile phone and cannot be changed after binding.
When you finish using the eSIM plan in your phone, click [Remove Action Plan] at the bottom to remove it.
Internet usage must comply with the Fair Usage Policy (FUP). If excessive usage in a short period of time causes a surge in traffic, telecom operators have the right to regulate it, which will cause a short-term slowdown or disconnection. It is recommended to turn off automatic app updates and automatic video playback in your phone.
International Fair Use Terms To ensure that all users can use mobile network services fairly at any time, each telecommunications operator has a separate fair use agreement to regulate fair network usage. When a user uses too much traffic in a busy network area in a short period of time, causing other users to be unable to use it normally, the telecommunications company can temporarily limit the speed, and the company will not be able to intervene. Your mobile network may be temporarily affected. To ensure normal use, please try to avoid watching videos for a long time or updating software and other tools that consume a lot of traffic.
Please be aware that the quality of Internet access may be affected by factors such as location, terrain, building shielding, number of users and weather.
Please remember to turn off data roaming on the original SIM card to avoid using the mobile network of the original SIM card and incurring high roaming charges.
You can choose to enable eSIM in China or after arriving at your destination. Billing will not start when you enable eSIM in China. Traffic will start to be calculated after you arrive at your destination and connect to the Internet using the eSIM service instead of mobile data.
The network service provided by eSIM is only for use abroad. When it is activated in China, it will cause the problem of being unable to use the network in China. At this time, you can first turn off the eSIM service and restore to the original telecommunications service, and then switch to the eSIM service after arriving at your destination.
When the device is connected to the Internet, go to "Settings" - "Mobile Services" - "Add Mobile Plan / Add eSIM" - "Scan QR Code"
Go to "Settings" - "Mobile Services" - "eSIM (Secondary, Travel, Business)" and turn on the "Data Roaming" option.
Switch to eSIM (Secondary, Travel, Business) from "Settings" - "Mobile Services" - "Mobile Data"
Switch from 5G to 4G or LTE in "Settings" - "Mobile Services" - "Mobile Data" - "eSIM (Secondary, Travel, Business)" - "Voice and Data"
How to Use
- Open the certificate and get the eSIM QR code
- Scan the QR code with your mobile phone and complete the installation (please refer to the picture above for detailed installation process)
＊You must have an internet connection to install the eSIM. Please make sure there is WiFi or mobile data available before installation.
＊Please make sure the roaming function is turned on before using eSIM
For Apple phones, please refer to the official website for installation instructions and inquiries.
After the mobile phone is successfully installed (i.e. after scanning the QR Code), this eSIM will no longer be able to be used in other phones. Please pay attention before scanning.
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
Yes, specific eSIM plans are designed to offer seamless data connectivity across multiple countries. This type of Japan and Korea eSIM allows you to use one digital SIM profile for internet access in both destinations, eliminating the need to purchase separate plans or swap physical SIM cards when traveling between the two nations.
When choosing a Japan and Korea eSIM, consider the duration of your trip, your estimated data usage, and the network coverage in the specific regions you plan to visit. It's also important to verify device compatibility, review activation instructions, and check for responsive customer support to ensure a smooth experience during your travels.
A Japan and Korea eSIM offers several practical advantages for travelers. It eliminates the need for physical SIM card swaps, preventing the risk of losing small cards. Activation is typically instant via a QR code, providing quick 4G internet access without waiting for delivery or visiting local stores. This convenience allows for a hassle-free start to your connectivity upon arrival.
The primary limitation of using an eSIM for Japan and Korea travel is device compatibility, as not all smartphones support eSIM technology. Additionally, initial eSIM activation often requires an internet connection, typically Wi-Fi, to download the profile. Some older or less common devices might not support all eSIM features, so verifying your phone's capabilities beforehand is crucial.
You can purchase a Japan and Korea eSIM online through platforms like KKday, which offers a convenient and straightforward booking process. After your purchase is confirmed, you will receive a QR code via email or on your voucher. To activate, simply scan this QR code with your compatible smartphone. This instantly installs the eSIM profile, providing quick 4G internet access without needing to wait for delivery or pick up a physical card.
A combined Japan and Korea eSIM is designed to offer robust network coverage by partnering with leading local operators. For Japan, these eSIMs often utilize networks such as KDDI, known for its extensive coverage and reliable performance. In South Korea, connections are typically provided through major carriers like SKT, ensuring high-speed and stable internet access throughout your visit.
Installing a Japan and Korea eSIM is a quick process. First, ensure your device is connected to Wi-Fi. Then, navigate to your phone's cellular settings and select 'Add Cellular Plan' or 'Add eSIM.' You will then be prompted to scan the QR code provided after your purchase. Follow the on-screen instructions to complete the installation, and your eSIM will be ready to use for data connectivity.
To check if your smartphone is compatible with a Japan and Korea eSIM, you can typically find this information in your phone's settings under 'About Phone' or 'Cellular/Mobile Data' options, looking for eSIM support. Alternatively, refer to your device manufacturer's official website or user manual. Most newer flagship models from Apple, Samsung, Google, and other major brands support eSIM functionality.
Get Help
