KDDI (au) Japan eSIM | Unlimited 5G High-Speed Internet | The World's Best Internet Experience
- KDDI (au), the world's leading telecommunications company as rated by Opensignal, provides Japan's mobile network.
- Supports AI tools such as ChatGPT, and unlimited data and speed with 5G high-speed mobile network
- Depending on the number of days purchased, you can enjoy an additional 3GB~21GB of hotspot sharing data
- Easy installation, no need to change SIM card, just scan QR code to activate
—KDDI won first place in the Opensignal 2025 Global Mobile Network Experience Awards in the categories of gaming, voice applications, and network reliability experience—
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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 phone is compatible with eSIM before purchasing. Orders cannot be canceled or refunded after ordering.
Before activating eSIM, please update iOS to the latest version and connect to a stable WiFi network. Old iOS versions and unstable networks are common reasons for eSIM activation failure.
Open the camera to scan the eSIM and click "Action Plan".
The activation time is about 2-3 minutes, and the installation may fail if the activation screen pops up.
Customizable eSIM names for easy management of multiple eSIMs
Select the default number to specify the original primary number to receive messages (you need to apply to the original telecom operator to activate the international roaming primary number before you can receive text messages)
You can specify the primary phone number to use iMessage and Facetime functions
If you choose to use eSIM mobile data, "eSIM mobile data is not enabled" is a common reason for not being able to access the Internet.
You can also manually add eSIM when you cannot scan the QR Code
After copying the eSIM activation code, please follow the steps to manually add the eSIM information.
SIM Card Specifications
| Data Usage Specifications | 12GB, 21GB |
| Transmission Specifications | 5G/4G |
| Signal Coverage Area | Japan |
| Mobile Carrier | KDDI |
| Supported Sizes | eSIM |
| Hotspot Sharing | Available |
| Network Type | Local |
Purchase Notice
- After the eSIM is sent, the order cannot be canceled or refunded. Please confirm that the phone can use the eSIM (iPhone and Android phones sold in China, Hong Kong, and Macau do not support the eSIM function; most Android phones sold in Taiwan do not support eSIM)
- For Android phones with eSIM support, please refer toFigures 1 and2 for the steps to manually enter the activation code.
Reminders
Before purchasing, please enter "＊＃０６＃" on your phone's dial pad. If the EID number is displayed, you can use the eSIM.
The QR code can only be scanned once and does not support reinstallation. Once the eSIM has been installed, please do not delete it to ensure uninterrupted service.
Please connect to a stable WiFi before activating the eSIM to avoid activation failure due to unstable network. The eSIM cannot be reissued after it expires.
The validity period is calculated when you activate the eSIM upon arrival in Japan. The first day is from the moment of activation to midnight Japan time.
When activating eSIM outside of Japan, it is normal to see "Activating" or "Activation Failed". Once you arrive in Japan, activate the eSIM and use the network.
Hotspot sharing traffic for various plans: 3GB total for 3-4 days, 6GB total for 5-7 days, 9GB total for 8-10 days, and 15GB total for 15 days.
Cancellation Policy
- Once the order has been completed, it cannot be canceled, modified, or refunded
- Debido a las diferencias horarias, la fecha de cancelación confirmada se basa en la hora local del proveedor. Espere de 2 a 5 días hábiles para procesar su solicitud de cancelación, tras lo cual se cobrará la tarifa de cancelación según la política del producto. Una vez confirmada la cancelación, recibirá su reembolso en un plazo de 14 días hábiles.
