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  4. Japanese SIM Card | KDDI/docomo 4G Internet Access, Daily High-Speed ​​Data, eSIM | Supports TikTok and ChatGPT
Product #147072
1
SCT eSIM Japan logo superimposed on a vibrant Shibuya Crossing night scene in Tokyo, symbolizing convenient KDDI high-speed mobile internet for Japan travel.

Japanese SIM Card | KDDI/docomo 4G Internet Access, Daily High-Speed ​​Data, eSIM | Supports TikTok and ChatGPT

Japan
4.1Very Good
Sold 100+
No cancellation
  • A new choice for Internet access, no need to change SIM cards, enjoy 4G Internet access quickly and smoothly without any hassle
  • Once you receive the voucher, you can scan it and install it, without having to go back and forth to get the physical card or wait for it to be delivered.
  • Environmentally friendly, no consumables, free shipping, zero risk of loss
  • Supports Apple and various Android phones. * Samsung phones purchased in different countries have different versions. Before purchasing, you must confirm whether they support eSIM (Samsung phones purchased in Taiwan do not support eSIM function)

[5% App discount] Code: APP5OFF , HK: APP15HK
Instant confirmation

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 phone has eSIM function before purchasing

English guide to check eSIM function on mobile phones, with visual steps for Apple, Google, and Samsung devices, helping users confirm compatibility for Japan mobile data.

Applicable models

Comprehensive list of compatible devices for Japan eSIM, including various iPhone, Google Phone, Samsung Galaxy, and other Android models, ensuring broad user support.

eSIM Installation Instructions (ios)

English iOS eSIM setup guide, using four iPhone screen images to clearly demonstrate how to add a cellular plan and use a QR code for Japan mobile internet activation.

Method 2

iPhone eSIM installation step-by-step guide, demonstrating adding a cellular plan and scanning a QR code or manually entering an activation code for Japan high-speed data.

eSIM installation instructions (android)

English Android phone eSIM installation guide, with four screen captures showing steps to configure network and mobile data, enabling users to activate their Japan eSIM.

Purchase Notice

  • Please make sure your phone and its operating system support the eSIM function before purchasing. If you cancel the order due to device incompatibility, no refund will be given.
  • iOS version 12.1 or higher is required; Please note that iPhones sold in mainland China do not support eSIM. In Hong Kong and Macau, only iPhone 13 mini, iPhone 12 mini, iPhone SE 2020 and iPhone XS have eSIM function. (Please visit Apple official website for inquiries)
  • Samsung phones vary in different countries. Samsung phones purchased in Taiwan do not support eSIM. Please confirm with Samsung's official website for other regions first.
  • Each QR code can only be scanned and installed once. Once bound, you cannot change the device or delete it. Once deleted, you cannot scan and install again and need to purchase it again.
  • The customer service hours for this product are 9:30~18:00 (GMT+8), please be advised.

Reminders

  • Before purchasing, please make sure that your phone and its operating system support the eSIM function. No refund will be given if the order is cancelled due to device incompatibility.

  • iOS 12.1 or later is required; Please note that iPhones sold in mainland China do not support eSIM. In Hong Kong and Macau, only iPhone 13 mini, iPhone 12 mini, iPhone SE 2020, and iPhone XS have eSIM capabilities.

  • Each QR code can only be scanned once. Once bound, you cannot change the device or delete it. Once deleted, you cannot scan and install it again.

  • An internet connection is required to install the eSIM. Please make sure there is WiFi or mobile data available before installation.

  • The eSIM must be installed and activated at the destination within 90 days of ordering, otherwise it will become invalid and unusable.

  • 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.

  • When you finish using the eSIM plan in your phone, click [Remove Action Plan] at the bottom to remove it.

  • Please be aware that the quality of Internet access may be affected by factors such as location, terrain, building shielding, number of users and weather.

  • The customer service hours for this product are 9:30~18:00 (GMT+8), please be advised.

How to Use

＊Please note that the customer service hours for this product are 9:30~18:00 (GMT+8).

  • ios
    1) Select the "Settings" page, then select "Mobile Network" 2) Click "Add Mobile Network" 3) Scan the QR code in the scan box that appears 4) After the download is complete, make some basic settings and you can start using it
  • Android
    1) On the "Settings" page, select "Network & Internet" 2) Select "Mobile Network" 3) Select "Download SIM card instead?" 4) Scan the QR code when the scanning screen appears

  • If the APN is not loaded automatically, please set the APN manually.
    APN: smartone/mobile/mobile.three.com.hk


  • Frequently asked questions
  1. How to check ICCID?
    If the mobile network is turned on, you can check the ICCID in “Settings – About this device – ESIM”.

  2. I have successfully activated the eSIM service, but the applicable device cannot connect to the network. What should I do?
    Please shut down and restart your device and update the iOS version before trying again.

  3. If the eSIM can be used normally but cannot share the hotspot, please refer to the following instructions to try to restore it:
    1) Is the phone a contract phone or a card-locked phone?
    2) Is VPN turned off?
    3) Is data roaming enabled?
    4) Whether to set the eSIM as the primary phone number
    5) Is the phone updated to the latest iOS version (iOS13.6)
    6) Please use a physical card to access the Internet, turn on the mobile phone hotspot sharing function (make sure the hotspot is available), then do not turn off the hotspot, and then switch the phone to the eSIM to access the Internet. Please try several times and turn the phone on and off.
    7) If the above problems have been eliminated, please contact customer service

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. How can tourists purchase a Japanese eSIM for their trip?

Tourists can easily purchase a Japanese eSIM online before or during their trip. Platforms like KKday offer a convenient way to buy eSIMs, allowing instant delivery of the QR code after purchase. This eliminates the need for physical card pickup or waiting for delivery, providing immediate access to the internet upon arrival in Japan. You simply scan the QR code to set up the eSIM on your compatible device.

2. What are the key advantages of using an eSIM for internet access when traveling in Japan?

Using a Japanese eSIM offers several key advantages. It eliminates the need to physically change SIM cards, allowing for quick and seamless 4G internet access. Activation is typically instant upon scanning a QR code, so there's no waiting for delivery or pickup. eSIMs also prevent the risk of losing a tiny physical SIM card and are generally considered an environmentally friendly option with no physical waste.

3. Are there any specific limitations or potential disadvantages of using a Japanese eSIM?

While highly convenient, Japanese eSIMs do have some limitations. Compatibility is crucial, as not all smartphones support eSIM technology; older models or specific regional versions (e.g., some Samsung phones from Taiwan) might not be compatible. Most tourist eSIMs are data-only, meaning they typically don't provide a local Japanese phone number for calls or SMS, which might be a disadvantage for some users.

4. How much data is typically recommended for a traveler using a Japanese eSIM for a multi-week trip?

The recommended data amount for a multi-week trip to Japan with an eSIM largely depends on individual usage. For light use (maps, messaging), 1GB per day might suffice. Moderate users (some video streaming, social media) could benefit from 2-3GB per day. For heavy users who frequently stream or upload, an unlimited daily data plan or higher daily allowance is often preferred to ensure seamless connectivity throughout their trip.

5. Do Japanese eSIMs primarily offer data-only plans, or do they include calling and SMS services?

For international travelers, Japanese eSIMs are predominantly offered as data-only plans. This means they provide high-speed internet access for navigation, messaging apps, and online browsing, but typically do not include a local Japanese phone number for making traditional calls or sending SMS messages. Most visitors rely on apps like WhatsApp or LINE for communication via data.

6. What are the general steps to set up and activate a Japanese eSIM on a smartphone?

Setting up a Japanese eSIM is straightforward. First, ensure your device is eSIM-compatible and unlocked. After purchasing, you'll receive a QR code via email or voucher. Go to your phone's cellular settings, select "Add Cellular Plan," and scan the provided QR code. Follow the on-screen prompts to complete the installation. Once installed, you may need to enable the eSIM line and ensure data roaming is turned on for it to connect to the network in Japan.

7. What factors should I consider when choosing a Japanese eSIM provider for my trip?

When selecting a Japanese eSIM provider, consider the data allowance per day or total, ensuring it matches your usage needs. Evaluate the network coverage and speed offered by the underlying carrier to ensure reliable connectivity throughout your travel destinations. Check the validity period to match your trip duration. Also, look for providers with clear setup instructions and responsive customer support in case you encounter any issues.

8. Which smartphone models and brands are compatible with Japanese eSIMs?

Japanese eSIMs are generally compatible with most newer iPhone models (iPhone XS and later) and various Android phones. For Android, compatibility can vary more by specific model and region. It's crucial to verify your phone's eSIM support before purchasing. For example, some Samsung phones, particularly those purchased in certain regions like Taiwan, may not support the eSIM function, even if other versions of the same model do.

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