![[Up to 35% Off] SoftBank Native 5G/4G Japan eSIM | Supports various AI tools | 3-30 day limited quantity](https://image.kkday.com/v2/image/get/c_fill%2Ch_800%2Cq_55%2Ct_webp%2Cw_2280/s1.kkday.com/product_615662/20260701074939_n2VW4/jpg)
[Up to 35% Off] SoftBank Native 5G/4G Japan eSIM | Supports various AI tools | 3-30 day limited quantity
- SoftBank's native network in Japan, no need to enable data roaming.
- This eSIM is operated by DHA Corporation.
- We provide customer service and after-sales support in Chinese, English, and Japanese.
- It supports AI tools such as ChatGPT and Gemini, allows hotspot sharing, and features a secure and reliable Japanese IP address.
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.
- Installation steps
- Please connect to a stable Wi-Fi network, long press or scan the eSIM QR code, and follow the on-screen instructions to complete the installation.
- Once your phone displays 5G, 4G, or LTE, you can start using the internet service. Please use it within the validity period.
❗Reminder: If you are asked to enter a verification code during the installation process on your phone, please enter "9999". - You can check your Softbank data usage while in Japan (but not after returning to Taiwan).
Query URL (language can be switched to Traditional Chinese): http://c.mb.softbank.jp/r?cmcd=4100049963 (It is recommended to enable incognito mode to avoid cookies affecting the display of remaining data)
- Precautions for installing eSIM
- Each QR code can only be scanned and installed once. Once bound, it cannot be changed to another device or deleted. Once scanned and installed, returns and refunds are not possible. We apologize for the inconvenience.
- It is recommended to scan for and install the eSIM after connecting to the free Wi-Fi at the airport upon arrival in Japan. Do not install the eSIM while traveling, as network interruptions may cause the installation to fail.
- Installing this eSIM outside of Japan may display messages such as "Activating", "Please contact your provider" or "Activation failed". Please do not delete the eSIM (it will not be reissued if deleted). You can connect to the Internet after arriving in Japan and activating the eSIM.
- Precautions for using eSIM
- This eSIM is a native Japanese resource; please do not enable data roaming.
- Days are calculated in calendar days. The first day is considered to be from the time the eSIM is installed and activated until 23:59 (Japan local time) on the same day.
- Why choose Nippon SIM?
Nippon SIM is a Japanese network card brand launched by the Japanese telecommunications company DHA CORPORATION, providing affordable, convenient, and stable high-quality internet access services.
We have customer service teams in Japan with Chinese, English, Japanese, and Taiwanese language options to provide you with the most prompt and reliable service. (Telecom registration number A-30-16419)
Please confirm that your device is eSIM compatible before purchasing.
eSIM Installation Instructions (Installation outside of Japan may display messages such as "Activating", "Please contact your provider", or "Activation failed". Do not delete the eSIM if this happens. Simply activate the eSIM after arriving in Japan to connect to the internet.)
SIM Card Specifications
| Data Usage Specifications | 10GB, 15GB, 30GB |
| Transmission Specifications | 4G |
| Signal Coverage Area | Japan |
| Mobile Carrier | Softbank |
| Supported Sizes | eSIM |
| Hotspot Sharing | Available |
| Supported Frequencies(4G) | B1（2100 MHz）, B3（1800 MHz）, B19（800 MHz）, B28（700 APT）, B42（TD 3500 MHz） |
| Top-Up Availability | Top-up unavailable |
| Excludes | Voice calls, Texts |
| Not Supported | SIM-locked device, Carrier-customized device, Mobile hotspotModified devices, translators, and devices without eSIM functionality. |
| Reminders | • This is a native Japanese resource and can be used normally with AI tools such as ChatGPT and Gemini. ・【請注意】 Google Pixel 、vivo手機不適用Softbank eSIM。 |
| Network Type | Local |
Purchase Notice
- Before purchasing, please enter "*#06#" on your mobile phone dial pad. If the EID serial number is displayed, you can use eSIM. No refund will be given if the order is cancelled due to device incompatibility.
- iOS requires the latest version; please note that only a few models in mainland China, Hong Kong and Macau support eSIM, please check the Apple website before purchasing.
- Samsung phones vary by country; most Samsung phones purchased in Taiwan do not support eSIM. For other regions, please check the Samsung website first.
- We provide customer service in Chinese, Taiwanese, English, and Japanese.
Reminders
Before purchasing, please enter "*#06#" on your mobile phone dial pad. If the EID serial number is displayed, you can use eSIM. No refund will be given if the order is cancelled due to device incompatibility.
iOS requires the latest version; please note that only a few models in mainland China, Hong Kong and Macau support eSIM, please check the Apple website before purchasing.
Samsung phones vary by country; most Samsung phones purchased in Taiwan do not support eSIM. For other regions, please check the Samsung website first.
【請注意】 Google Pixel 、vivo手機不適用Softbank eSIM。
Installing an eSIM requires an internet connection. Please ensure there is available Wi-Fi or mobile data in your environment before installation.
It is recommended to scan for and install the eSIM after connecting to the free Wi-Fi at the airport upon arrival in Japan. Do not install the eSIM while traveling to avoid network interruption causing the installation to fail.
This eSIM is a prepaid card issued in Japan. If installed outside of Japan, it may display messages such as "Activating," "Please contact your provider," or "Activation failed." Please do not delete the eSIM (it will not be reissued if deleted). Once you arrive in Japan, simply activate the eSIM to connect to the internet.
Each QR code can only be scanned and installed once. Once bound, it cannot be changed to another device or deleted. Once scanned and installed, returns and refunds are not possible. We apologize for the inconvenience.
Please remember to turn off data roaming on your original SIM card to avoid using the original SIM card's mobile network and incurring high roaming charges.
To end your use of the eSIM plan on your phone, simply tap "Remove eSIM" at the bottom.
Please be aware that signal quality may be affected by factors such as location, terrain, building obstruction, number of users, and weather.
All Nippon SIM/eSIM cards are native Japanese IP cards and can be used with ChatGPT.
How to Use
- Installation steps
- Please connect to a stable Wi-Fi network, long press or scan the eSIM QR code, and follow the on-screen instructions to complete the installation.
- Once your phone displays 5G, 4G, or LTE, you can start using the internet service. Please use it within the validity period.
❗Reminder: If you are asked to enter a verification code during the installation process on your phone, please enter "9999". - You can check your Softbank data usage while in Japan (but not after returning to Taiwan).
Query URL (language can be switched to Traditional Chinese): http://c.mb.softbank.jp/r?cmcd=4100049963 (It is recommended to enable incognito mode to avoid cookies affecting the display of remaining data)
- Precautions:
- Installing an eSIM requires an internet connection. Before installation, please ensure that there is available Wi-Fi or mobile data in your environment (airport Wi-Fi can be used for internet access).
- Each QR code can only be scanned and installed once. Once bound, it cannot be changed to another device or deleted. Once scanned and installed, returns and refunds are not possible. We apologize for the inconvenience.
- It is recommended to scan for and install the eSIM after connecting to the free Wi-Fi at the airport upon arrival in Japan. Do not install the eSIM while traveling to avoid network interruption causing the installation to fail.
- This eSIM is a prepaid card issued in Japan. If installed outside of Japan, it may display "Activating" or "Activation failed". Please do not delete the eSIM because of this (it will not be reissued if deleted). This may cause the validity period to start calculating earlier, resulting in it not fully covering your trip. Please be aware of this.
- If you encounter any problems, please contact customer service. We provide customer service in Chinese, Taiwanese, English, and Japanese.
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 your refund request is confirmed, KKday will initiate the refund to your original payment method within 15 days. The actual refund timing depends on your card-issuing bank’s policy.
FAQ
1. What kind of network coverage can I expect with this SoftBank eSIM in Japan?
The SoftBank native 5G/4G network, utilized by this eSIM, provides extensive coverage across Japan, especially in major cities, popular tourist destinations, and along main transportation routes. You can generally expect reliable internet access for daily use, navigation, and communication in these areas. While coverage is robust, performance can vary slightly in very remote or mountainous regions.
2. How does the SoftBank network performance for this eSIM compare to Docomo in Japan?
Both SoftBank and Docomo are leading mobile network providers in Japan, offering strong 5G/4G services. SoftBank is particularly recognized for its high speeds and robust coverage in urban centers and densely populated areas, making it an excellent choice for city travelers. Docomo is often cited for its slightly broader coverage in more remote and rural parts of the country. For most travelers, the SoftBank network offers reliable and fast connectivity.
3. Do other popular eSIM providers for Japan, like Airalo, typically use the SoftBank network?
Many eSIM providers offering services in Japan partner with one of the major local carriers, including SoftBank, Docomo, or au. While some providers like Airalo might utilize SoftBank's network in certain regions or plans, it can vary by specific product or package. This particular eSIM exclusively operates on the SoftBank native 5G/4G network, ensuring a direct connection to SoftBank's infrastructure.
4. What features does this SoftBank 5G/4G eSIM offer for travelers in Japan?
This SoftBank 5G/4G eSIM provides several useful features for travelers. It uses the native SoftBank network, so you don't need to enable data roaming. It supports various AI tools like ChatGPT and Gemini and allows for hotspot sharing, letting you connect other devices. The service also comes with customer support available in Chinese, English, and Japanese, ensuring assistance if needed.
5. Can this SoftBank eSIM provide stable and fast internet for using AI tools and hotspot sharing in Japan?
Yes, this SoftBank eSIM operates on a native 5G/4G network, designed to provide stable and fast internet connectivity across Japan. This performance is sufficient for demanding tasks such as utilizing AI tools like ChatGPT and Gemini, as well as reliably sharing your internet connection via hotspot with other devices. The network ensures a consistent and high-speed experience for your digital needs.
6. Is customer support available for this SoftBank eSIM service in Japan?
Yes, comprehensive customer support is available for this SoftBank eSIM service. You can receive assistance in multiple languages, including Chinese, English, and Japanese. This ensures that travelers can get help with any questions or technical issues they might encounter during their trip, providing peace of mind and convenience.
7. Can I use this SoftBank eSIM for reliable internet access in remote or less populated areas of Japan?
While the SoftBank native 5G/4G network offers excellent coverage in urban centers and most populated areas of Japan, performance in very remote or mountainous regions, as well as specific underground or indoor locations, may be less consistent. For travel primarily within cities and major tourist routes, the connection is generally very reliable. For extremely remote exploration, local conditions should be considered.
8. Does using this SoftBank eSIM require activating data roaming on my device in Japan?
No, when using this SoftBank eSIM, you do not need to activate data roaming on your device. This eSIM operates directly on the native SoftBank network in Japan, functioning like a local SIM card. Activating data roaming is typically only required when using your home country's SIM card abroad. With this eSIM, you can simply install it and connect directly to the local network.
