Japanese eSIM Card｜KDDI, SoftBank 5G Daily/Total eSIM
- Supports iOS One-Click Installation: Update to the latest version of the KKday App and iOS 17.4 or above to install the eSIM with one click.
- A new way to go online—no SIM swap needed, enjoy fast 5G internet conveniently.
- Scan and install immediately after receiving the voucher—no need to pick up or wait for a physical SIM.
- Supports Apple and various Android phones.
* Note for Samsung users: eSIM compatibility depends on the country of purchase. Samsung phones purchased in Taiwan do not support eSIM. - Data roaming services via KDDI and SoftBank are provided by Hutchison Telecommunications Hong Kong Holdings Limited.
- For common eSIM questions, please refer to the Help Center ( https://www.kkday.com/zh-tw/help-center/category/65).
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.
Please confirm that your device is compatible with eSIM before purchasing
eSIM Installation Instructions
eSIM Android Installation Instructions - Taking Google Pixel 3a as an example
How to manually enter the enablement code
SIM Card Specifications
| Data Usage Specifications | 500MB, 1GB, 2GB, 3GB, 5GB, 10GB, 20GB, 30GB, 50GB |
| Transmission Specifications | 5G/4G |
| Signal Coverage Area | Japan |
| Mobile Carrier | KDDI、SoftBank |
| 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, modified phones, 3G phones, translation machines, phones without eSIM function |
| Network Type | Roaming |
| Mobile Virtual Network Operator (MVNO) | Hutchison Telecommunications Hong Kong Holdings Limited |
Purchase Notice
To check traffic usage: click https://flow-consumer-center.billionconnect.com/usageq/kkdayota/en to go to the query page.
Real-time usage tracking is not supported. Roaming service providers’ usage data is updated with a 1-hour delay. (For example, if you query at 10 a.m., you will get the usage data as of 9 a.m.)
Reminders
You can install the eSIM before arriving at your destination, activate the package after arriving at your destination, and the usage date will start calculating.
An internet connection is required to install the eSIM. It is recommended that you use the free airport Wi-Fi to install it before departure or at your destination.
A QR code can only be scanned once with one mobile phone, and the device cannot be changed after binding.
Daily plan / Total plan: 24-hour system. After eSIM is activated, 24 hours is considered a day. (Users purchased a 3-day Internet plan and installed and activated it at 10:00 am on 9/1. This plan will end at 9:59 am on 9/4)
Valid for use within 90 days from the date of order placement, otherwise invalid.
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.
Once installed, the eSIM can be deleted and reinstalled up to 10 times on the same device. The eSIM can be installed again within the validity period of the QR code (for an unactivated eSIM) or within the validity period of the package (for an activated eSIM). After the validity period has expired, it can no longer be installed.
If an error message is displayed after scanning, it does not mean that the eSIM is invalid. Please restart your phone and go to [Settings > Mobile Services] to check whether the eSIM has been added. Or contact customer service for assistance. Do not scan other QR Codes to install multiple eSIMs on one phone.
Please delete the description file for iPhone (check steps: Settings -> General -> Device Management, scroll to the bottom, if there is no description file, it means it is normal) to avoid problems with smooth use.
The quality of telecommunications networks varies from country to country. The geographical location and telecommunications construction of each country are also different. We are unable to request a refund due to signal conditions in a few areas. If you encounter a poor signal, you can manually switch telecom operators. To switch operators, go to Network Selection/Telecom Operator>Auto Close> and you will have different operators to choose from after searching.
In order to maintain the quality of Internet connections and the Fair Usage Policy (FUP), telecommunications companies around the world sometimes impose traffic restrictions on customers who use a large amount of Internet traffic in a short period of time, which may result in Internet access failure or slow Internet speed. To ensure that you can connect to the Internet normally, please try to avoid watching/downloading videos for a long time, updating software, sharing the Internet (hotspot) with others, or other usage behaviors that consume a lot of data.
If the eSIM plan is not fully used or the plan is deleted without the approval of customer service staff, it will not be reissued or refunded.
Check data usage: Click https://flow-consumer-center.billionconnect.com/usageq/kkdayota/en to jump to the query page. Real-time usage tracking is not supported. Roaming service providers' usage data updates are delayed by 1 hours. (For example: the data query at 10 am is the usage as of 9 am.)
How to Use
- Installation steps:
Method 1: Scan QR Code
Method 2: Manually add SM-DP_Address and Activation Code - Steps to enable activation:
1. After arriving at your destination, turn off other SIM cards and only turn on the eSIM and its data roaming.
2. Set the APN of the eSIM (APN will usually be automatically identified, but if it cannot be automatically identified, you need to set it manually)
APN: mobile.three.com.hk
- The validity period is 90 days from the order date. It will be invalid after the expiration date.
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
The Japanese eSIM Card is compatible with most Apple iPhones and a variety of Android smartphones. Before purchasing, it is crucial to confirm that your specific device model supports eSIM technology. This ensures a smooth setup and reliable internet access during your trip to Japan.
The Japanese eSIM Card provides significant convenience as it eliminates the need for a physical SIM. Travelers can experience quick and smooth 5G internet access without the hassle of card swapping or needing an ejection tool. Its QR code activation process means you can install it instantly upon receiving your voucher, avoiding physical pickup or delivery waits.
For a week-long trip to Japan, the amount of data needed varies by usage habits. Generally, 5GB to 10GB per week is sufficient for light to moderate use, including navigation, social media, email, and occasional streaming. Heavy users who frequently stream videos or upload large files might consider plans with 15GB or more. It's advisable to assess your typical data consumption before selecting a plan.
While convenient, some considerations for the Japanese eSIM Card include ensuring your phone is unlocked and eSIM compatible. It primarily offers data services, meaning traditional voice calls or SMS may not be supported (though internet-based calling apps work). Activation requires an internet connection to download the eSIM profile. Also, ensure you don't delete the eSIM profile accidentally after installation.
The Japanese eSIM Card primarily provides high-speed data services for internet access. It typically does not include traditional voice call (PSTN) or SMS functionalities. However, you can easily make voice and video calls using internet-based communication apps such as WhatsApp, Line, FaceTime, or Skype, relying on the eSIM's robust 5G data connection.
Yes, certain Samsung phone models, especially those purchased in specific regions like Taiwan, are known to not support eSIM functionality. It's crucial for travelers with Samsung devices to verify their phone's exact model number and its eSIM compatibility directly with the manufacturer or via their device settings before purchasing the Japanese eSIM Card.
Activating your Japanese eSIM Card is straightforward. Once your order is complete and you receive the voucher, you simply scan the provided QR code with your eSIM-compatible smartphone. Follow the on-screen prompts to download and install the eSIM profile. This process eliminates complex steps like changing physical cards, allowing for immediate internet access.
The Japanese eSIM Card leverages the robust networks of prominent local providers, KDDI and SoftBank, to deliver 5G daily and total data roaming services. These networks offer extensive coverage and reliable high-speed internet access across various regions in Japan, ensuring a stable connection for travelers.
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