[First Snow Limited-Time Offer – 50% OFF+] Japan eSIM, Nationwide Coverage | 5G/4G High-Speed Unlimited Internet | Supported by 4 Major Carriers for Stable Connection | ChatGPT Compatible
- Stay connected across Japan with KKday’s Japan eSIM on Rakuten, SoftBank, and Docomo networks
- Experience blazing-fast 4G/5G speeds and effortless hotspot sharing—no SIM swaps, no stress
- Choose flexible data plans up to 30 days with the best eSIM for Japan—daily, total, or unlimited
- Go green with a zero-waste eSIM—easy, instant, and perfect for sustainable travel
- Check our eSIM FAQ in the KKday Help Center for quick answers and tips
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 make sure your device is eSIM compatible before booking
No more complicated setup processes – eSIM installation instructions make it easy to get connected and start surfing the web in no time!
SIM Card Specifications
| Data Usage Specifications | 500MB, 1GB, 2GB, 3GB, 5GB, 10GB, 20GB, 50GB |
| Transmission Specifications | 5G/4G |
| Signal Coverage Area | Japan |
| Mobile Carrier | Rakuten, SoftBank, Docomo, KDDI |
| Supported Sizes | eSIM |
| Hotspot Sharing | Available |
| Supported Frequencies(4G) | B1（2100 MHz）, B3（1800 MHz）, B42（TD 3500 MHz）, B28（700 APT）, B11 (1500 MHz), B8（900 MHz）, B18（800 MHz）, B19（800 MHz） |
| Top-Up Availability | Top-up unavailable |
| Excludes | Voice calls, Texts |
| Not Supported | SIM-locked device, Carrier-customized device, Mobile hotspot, Tablet |
| Network Type | Roaming |
| Mobile Virtual Network Operator (MVNO) | Hutchison Telecommunications Hong Kong Holdings Limited |
Purchase Notice
- Using a hotspot may consume bandwidth, and internet speed can vary depending on your device and location. Minimum speed is not guaranteed, so please confirm before placing your order.
- Network quality differs by country, and base station coverage may not be as dense as in Taiwan. Refunds cannot be requested due to poor signal in a few areas.
- To maintain network quality, telecom providers follow fair usage policies. Heavy network usage in a short period may result in slower speeds or temporary connection restrictions.
- Actual signal and connection speed may be affected by region, terrain, weather, building obstructions, number of users, network systems, or devices. If 5G is unavailable locally or on your device, it will automatically switch to 4G.
Includes/Excludes
Reminders
Day Calculation Method: The count begins when you arrive in the destination country, turn on data roaming, and successfully connect to the internet. Use time is calculated based on Taiwan time (GMT+8), with each day ending at midnight Taiwan time, not in 24-hour increments
Before installing the eSIM, ensure you are connected to a working WiFi or mobile network, then scan the QR Code to add the mobile plan. The eSIM can be installed before arriving in the travel country and activated once you reach your destination.
Please install the eSIM per instruction and stay on the app during installation to avoid systematic error that might delete your eSIM plan
Each QR code can only be scanned once, and no changes can be made once the QR code is scanned and linked to the device
If an error message is displayed after scanning, it does not mean that the eSIM is invalid. Please restart your phone and go to the Cellular Data page to check whether the eSIM has been linked to your phone, or contact customer service for assistance. Do not scan other QR codes without authorization as this may cause double linking and invalidate the eSIM
eSIM is valid within 180 days if not scanned. Once scanned, it must be activated and used within 30 days. No refunds or extensions will be provided if expired
Please check your iPhone and delete "Configuration Profile" if there is one (Setting→General→Device Management)
If you eSIM has data left or you delete the eSIM without confirming with the customer service, no refunds or re-issuing will be provided
Network quality and base station density differ from country to country. Each country has unique regional and telecom infrastructure, and we cannot offer refunds due to poor signal conditions in certain areas. If you encounter poor signal, you can manually switch telecom providers ( Network Selection→Turn off "Automatic"→ choose from different the providers
This product uses an international roaming IP. Some apps on Android devices may not work due to the IP location (e.g., TikTok/Douyin/Alipay/AutoNavi/Meituan/Mini Programs/etc.).
If the eSIM is not working at your destination, please contact customer service via LINE. There will be no after-sale service after you return to Taiwan
How to Use
Validity Period
- eSIM is valid within 180 days if not scanned. Once scanned, it must be activated and used within 30 days. No refunds or extensions will be provided if expired
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, the Japan eSIM is primarily designed for high-speed internet access. It provides 5G/4G data connectivity across Japan, supported by major carriers like Rakuten, SoftBank, and Docomo. You can choose from various data plans, including daily, total, or unlimited options for up to 30 days, catering specifically to your internet usage needs during your trip. It also supports effortless hotspot sharing.
One primary consideration for a Japan eSIM is device compatibility; your smartphone must support eSIM technology. Additionally, the initial activation often requires a stable internet connection, which might be a challenge if you don't have Wi-Fi upon arrival. Unlike physical SIM cards, eSIMs cannot be easily transferred between devices, and some users might find troubleshooting unfamiliar without a physical card to check.
The Japan eSIM provides high-speed 5G/4G internet by leveraging the networks of major local carriers like Rakuten, SoftBank, and Docomo. Once activated, your device connects to these networks digitally. You select a data plan (daily, total, or unlimited) that determines your data allowance and validity period. This digital connection allows for quick, stable internet access and supports functionalities like hotspot sharing without needing a physical SIM card.
Yes, the Japan eSIM is designed to offer stable and reliable 5G/4G high-speed internet connectivity throughout Japan. It utilizes the robust networks of three major local carriers: Rakuten, SoftBank, and Docomo. This multi-network support helps ensure broad coverage and consistent performance, allowing you to stay connected whether you are in urban centers or exploring more remote areas.
Yes, typically an existing internet connection (either Wi-Fi or another active cellular connection) is required to download and activate the Japan eSIM profile onto your device. This connection is necessary for your device to retrieve the eSIM data from the provider's servers. It's recommended to complete the activation process before you depart or upon arrival at a location with stable Wi-Fi.
After activating your Japan eSIM, ensure mobile data is enabled for the eSIM profile in your phone's settings. You may also need to configure the Access Point Name (APN) settings, though this is often automatic. Select the eSIM as your primary line for cellular data. If traveling internationally, remember to turn on data roaming for the eSIM. Your device should then automatically connect to one of the supported local networks like Rakuten, SoftBank, or Docomo.
If your Japan eSIM internet isn't working, first check if mobile data is enabled for the eSIM profile and that data roaming is on. Try restarting your phone, which can often resolve minor connectivity issues. Verify that your device's APN settings are correct. You can also manually select a different network operator from the supported carriers (Rakuten, SoftBank, Docomo) in your phone's settings. Ensure your data plan has not expired or run out of data.
The Japan eSIM offers flexible data plans tailored to different travel needs. You can choose from daily data plans, which reset allowance each day; total data plans, providing a fixed amount of data for the entire validity period; or unlimited data plans, offering continuous high-speed access. These plans are available for durations of up to 30 days.
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