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Product #135545
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Promotional image for Japan 5G eSIM, blending Sensoji Temple, Tokyo Skytree, and Mount Fuji in the background, with a foreground cartoon character showcasing a phone and eSIM chip, conveying easy internet access for Japan travel.

[50% OFF] Japan 5G eSIM | Coverage by Docomo/KDDI/SoftBank | High-speed and stable, seamless nationwide service | Flexible multi-day options | ChatGPT supported

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  • [iOS Users' Choice: One-Click Installation, Say Goodbye to Manual Input!] Update to iOS 17.4 or later and use the latest version of the KKday App to quickly install your eSIM, saving you the trouble of manual input and making internet access abroad easier. ⚠️ Android users whose phones support eSIM can contact customer service for a dedicated one-click installation link.
  • Multiple plans are available, ranging from 1 to 30 days, with options for total data allowance, daily data allowance, and unlimited data, allowing you to flexibly choose according to your travel needs.
  • Instant redemption, receive a QR code immediately after order confirmation, no mailing or physical SIM card ejector tool required. Buy anytime, travel anytime.
  • Do not miss calls from the original number
    eSIM coexists with your original physical SIM card, allowing you to retain your original number and receive important text messages and calls without changing your card.
  • This eSIM data roaming service is provided by Hutchison Telecommunications Hong Kong Holdings Limited and China Unicom Global Limited.
[5% App discount] Code: APP5OFF , HK: APP15HK
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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.

— eSIM Installation Notes — 

  • To install the eSIM, a stable internet connection is required (WiFi or mobile network). It is recommended to install it before the flight or after arriving at the destination.
  • After installation, please enable the eSIM and set it as the default card for mobile data.
  • During use, data roaming for the eSIM must be enabled.
  • Before purchasing, please ensure that your phone supports eSIM installation (the same model may vary by country, so be sure to confirm in advance whether your phone has the eSIM functionality).

English tutorial on checking phone eSIM functionality, in two parts, explaining how to dial *#06# to verify IMEI and check iOS/Google Pixel cellular settings.

Illustrated guide on how to one-click install Japan 5G eSIM via KKday App, with four steps guiding users to update to iOS 17.4+ for installation.

Smartphone settings screenshot displaying 'Data Roaming' enabled in English, providing detailed instructions for activating Japan 5G eSIM.

Apple iPhone iOS eSIM setup tutorial, in English, detailing four steps to activate Japan 5G eSIM on iPhone for quick internet access.

Google Pixel eSIM setup instructions, in English, demonstrating four steps to connect to Japan's 5G network on Android phones, ensuring a smooth experience.

Japan 5G eSIM usage check and 365-day customer service, with English icons illustrating scanning a QR code to check data and providing round-the-clock support.

Purchase Notice

  • The eSIM can be activated within 90 days from the order date. The date selected when placing the order is for system reference only; you can actually use it any day within the validity period according to your schedule.
  • Installing an eSIM requires a Wi-Fi or wireless network connection. It is recommended to complete the installation before departure or use the free Wi-Fi at the airport upon arrival. After installation, please ensure that data roaming is enabled.
  • Hotspot sharing is supported, but continuous hotspot use may affect internet speed and experience. It is recommended that each device use its own eSIM. If multiple people are sharing the hotspot or watching high-definition videos for extended periods, it is recommended to purchase a 'total data plan' to enjoy more generous data allocation.
  • Due to varying distribution of base stations by different telecom operators in different countries, signal reception may experience temporary fluctuations due to terrain, building obstruction, or dense crowds. The phone's system will automatically switch to the optimal frequency band based on the environment. For example, if the 5G signal is weak, it will automatically switch to 4G/LTE to maintain a stable connection. If you experience abnormal network speeds, it is recommended to move to a different location, switch to airplane mode to rescan for base stations, or contact online customer service for assistance.
  • For frequently asked questions about eSIM, please refer to the Help Center .

Includes/Excludes

  • eSIM

Reminders

  • Installing an eSIM requires a Wi-Fi or wireless network connection. It is recommended to complete the installation before departure or use the free Wi-Fi at the airport upon arrival.

  • When installing by scanning the QR code, please print the voucher before departure, or prepare another device that can display the voucher.

  • To manually add an eSIM, please refer to the eSIM details in the "Pre-trip Reminder," copy and paste the <SM-DP_Address> and <Activation Code>. The <Confirmation Code> is not required.

  • Please enable "Data Roaming" and "Auto Network Search" for your eSIM, and ensure that VPN is disabled and old profiles are removed (Settings > General > VPN & Device Management). Wait 1-3 minutes for the network to connect automatically.

  • eSIM data usage and installation status: Please enter your order number (starting with 26KK) to check: https://search.t-sim.hk/dataplan/order

  • Some applications (such as mobile payments, online banking, video streaming, short videos, or AI applications) may be restricted based on regional IP addresses or security regulations. This is an application-side mechanism and not a network connection failure. It is recommended to check the roaming support status of commonly used applications before departure to ensure smooth operation.

  • Internet access during roaming may fluctuate slightly due to factors such as location, terrain, building obstruction, number of users, and weather conditions. This is normal. If you experience abnormal internet speed, we recommend moving to a different location or switching to airplane mode to rescan for base stations, or contacting online customer service for assistance.

  • Hotspot sharing is supported, but continuous hotspot sharing may affect internet browsing experience. It is recommended that each device use a separate eSIM. For extended periods of video viewing or heavy downloading/uploading, it is advisable to use the service moderately or purchase a limited-capacity plan to maintain a smooth internet browsing experience.

Cancellation Policy

  • Once the order has been completed, it cannot be canceled, modified, or refunded
NOTE
  • 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

1. Is 5G eSIM readily available for tourists traveling to Japan?

Yes, Japan offers readily available 5G eSIM options for tourists. This specific Japan 5G eSIM provides immediate access to high-speed internet upon activation, eliminating the need for physical SIM cards. It is designed for travelers seeking convenient and fast connectivity throughout their trip to Japan, ensuring you can stay connected from the moment you arrive.

2. Does this Japan 5G eSIM offer stable 5G connectivity across the country?

Yes, this Japan 5G eSIM is designed to offer stable 5G connectivity across the country. It utilizes the KDDI native network, which provides lower latency (PING) for smooth internet, communication, and video streaming. Additionally, it offers comprehensive network coverage through Japan's four major carriers—docomo, KDDI, SoftBank, and Rakuten—ensuring reliable service in both urban centers and more remote rural areas.

3. What are the key features of this Japan eSIM that ensure reliable internet for tourists?

This Japan eSIM incorporates several key features to ensure reliable internet for tourists. It includes a KDDI native plan for low latency and a dual carrier plan supporting both KDDI and SoftBank simultaneously for stable signals. Full network coverage by the four major carriers (docomo, KDDI, SoftBank, Rakuten) guarantees broad access. Furthermore, it offers instant use upon purchase with automatic connection, making internet access abroad hassle-free.

4. How can I obtain and activate this Japan 5G eSIM before or upon arrival?

You can easily obtain and activate this Japan 5G eSIM through KKday. After your booking, you will receive a KKday voucher containing a QR code for setting up the eSIM. For iOS users running version 17.4 or above, there's a convenient one-tap installation feature available via the KKday App. Using KKday streamlines the process, allowing instant use upon purchase without needing physical collection or exchange, providing seamless access to data immediately upon arrival.

5. What are the advantages of using an eSIM for data access in Japan compared to physical SIM cards?

Using an eSIM for data access in Japan offers significant advantages over traditional physical SIM cards. It eliminates the hassle of physically swapping cards, keeping your primary SIM safe. Activation is instant and digital, typically done by scanning a QR code, which provides immediate connectivity upon arrival. This leads to a more convenient and seamless travel experience, supporting various data plans for flexible usage without the risk of losing a small physical card.

6. What types of data plans are available with this Japan eSIM for varying travel durations and usage needs?

This Japan eSIM offers flexible data plans to cater to varying travel durations and usage needs. You can choose from unlimited data options, daily plans, or high-capacity data packages. These plans are available for durations ranging from 1 to 30 days, allowing travelers to select the most suitable option based on their trip length and anticipated data consumption for activities like browsing, navigation, communication, and social media.

7. How does this Japan 5G eSIM ensure strong network coverage throughout both urban and rural areas?

This Japan 5G eSIM ensures strong network coverage by leveraging Japan’s robust telecommunications infrastructure. It provides full network coverage through a combination of docomo, KDDI, SoftBank, and Rakuten networks. Additionally, it offers a dual carrier plan that supports both KDDI and SoftBank simultaneously, providing stable and reliable signals. This comprehensive approach helps maintain consistent internet connectivity in diverse locations, from bustling city centers to more tranquil rural regions.

8. Does this Japan 5G eSIM support one-tap installation and AI smart assistance features?

Yes, this Japan 5G eSIM incorporates modern conveniences like one-tap installation and AI smart assistance. For iOS users with version 17.4 or above, it offers a simplified one-tap installation directly through the KKday App, making setup quick and effortless. Furthermore, the eSIM supports ChatGPT, enabling on-the-go AI smart assistance which can be highly useful for various travel-related inquiries and real-time information access during your trip.

Get Help

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