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Main visual for Commbitz Japan eSIM, featuring cherry blossoms, torii gates, and traditional Japanese buildings, highlighting easy installation and high-speed internet for travelers.

【Commbitz】Japan eSIM | 500MB-50GB Unlimited/Daily/Total Data Plan

1.0Below expectations

No cancellation

  • Receive your eSIM instantly after placing your order—no shipping delays. 
  • Environmentally friendly, no consumables, free shipping, and zero risk of losing a physical SIM card. 
  • Easily install the eSIM by scanning the voucher—no need to wait for delivery or visit a physical store. 
  • Scan the QR code to access 5G/4G internet, offering a convenient and eco-friendly alternative to physical SIM cards.
[5% App discount] Code: APP5OFF , HK: APP15HK
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Package Options

What You Can Expect

No refunds after purchase; please confirm your phone's eSIM compatibility beforehand.

No refunds after purchase; please confirm your phone's eSIM compatibility beforehand.

Before activating the eSIM, please update your iOS to the latest version and connect to a stable Wi-Fi network. Older iOS versions and unstable networks are common causes of eSIM activation failures.

Instructions to update iOS to the latest version and connect to a stable Wi-Fi network before activating Commbitz Japan eSIM, preventing installation failures.

Turn on the camera, scan the eSIM QR code, and tap "Add Cellular Plan."

Demonstrating how to use a phone camera to scan the Commbitz Japan eSIM QR code to quickly add a cellular plan and easily activate high-speed data service in Japan.

Activation typically takes around 2–3 minutes. Any interruptions during this process may result in installation failure.

Phone screen displaying the Commbitz Japan eSIM activation interface, explaining that the activation process takes approximately 2-3 minutes, requiring patience and stable connection.

You can assign a label to each cellular plan, and customize your eSIM label by going to Settings and selecting Cellular.

Phone screen displaying the interface for choosing labels for Commbitz Japan eSIM cellular plans, allowing custom naming like 'Travel' for easier multi-line management.

Select the default line (Primary SIM) to designate the main phone number for receiving text messages. Please ensure that international roaming is activated for your main number with your original carrier to receive messages.

Phone screen displaying the 'Default Line' setting interface, allowing users to configure Commbitz Japan eSIM as primary or secondary for optimized call and message management.

You can designate the primary SIM for iMessages and FaceTime.

Displaying the iMessage and FaceTime settings interface, where users can choose to use Commbitz Japan eSIM as the primary SIM for these communication features.

Make sure to select eSIM as your cellular data plan. A common reason for being unable to access the internet is that eSIM mobile data is not enabled.

Phone cellular data settings interface, demonstrating how to select Commbitz Japan eSIM as the primary data plan and recommending disabling data switching to prevent network interruptions.

You can also manually add the eSIM if you're unable to scan the QR code.

Instructions on manually entering the Commbitz Japan eSIM activation code if QR code scanning fails, using screenshots or long-pressing to copy for successful activation.

After copying the eSIM activation code, please follow the steps to manually enter the eSIM information.After copying the eSIM activation code, please follow the steps to manually add the eSIM information.

Step-by-step guide on manually adding Commbitz Japan eSIM, showing screens for entering and pasting the activation code to ensure smooth connectivity during your trip.

Purchase Notice

  • Daily/Total Data Plan: Once the high-speed data is used up, the speed will be throttled to 128kbps.
  • Data Traffic Reset Time Zone: at 00:00 UTC +8.
  • Please note that the validity period will begin upon connecting to the local network. We recommend installing the eSIM at the start of your travel to ensure optimal usage.
  • WiFi Calling and Data Roaming should be enabled after eSIM installation.

Reminders

  • Please turn off the data roaming function of the original SIM card to avoid high roaming fees.

  • Please make sure your mobile phone and its operating system are compatible with eSIM, failure to do so may result in activation failure, refunds will not be granted.

  • Please note that iPhones sold in China do not support eSIM and certain mobile phones sold in Hong Kong and Macao do not support eSIM. If you have any questions, please contact customer service, preferably before booking.

  • In order to ensure all users' accessibility to the internet, each telecom carrier implements their fair usage policy to monitor data consumption. If a user's data consumption negatively affects other users' internet connections, the telecom carrier may enforce speed restrictions temporarily. Please note that under such circumstances, KKday has no right to intervene.

  • The quality of communication may be affected by outside conditions; surrounding landforms (e.g. mountains), weather, obstruction by buildings, the number of users, or locations may affect the speed and quality of the internet.

How to Redeem Your Voucher

Voucher Redemption Period

  • Valid for redemption within 30day(s) from the date of issue; Invalid after expiration

Validity Period

  • Valid for use within 30day(s) from the date of issue; Invalid after expiration

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 does a Japan eSIM enhance the travel experience in Japan?

A Japan eSIM provides instant connectivity upon arrival, eliminating the need to search for local SIM cards or rely on public Wi-Fi. It offers the convenience of quick QR code activation and high-speed 5G/4G internet, ensuring seamless navigation, communication, and access to online services throughout your trip. It's also an environmentally friendly choice, reducing physical waste.

2. What is the process to purchase and receive a Commbitz Japan eSIM?

You can easily purchase the Commbitz Japan eSIM through KKday, which offers a straightforward booking experience. After placing your order, the eSIM is delivered instantly via email. You'll receive a QR code, which you then scan to install and activate the eSIM on your compatible device, eliminating physical shipping and waiting times.

3. Is the Commbitz Japan eSIM suitable for tourists visiting Japan?

Yes, the Commbitz Japan eSIM is specifically designed for international tourists visiting Japan. It provides hassle-free access to high-speed mobile data across the country, allowing travelers to stay connected for maps, translation, social media, and communication without local registration complexities.

4. What features does the Commbitz Japan eSIM offer compared to traditional SIM cards?

The Commbitz Japan eSIM offers several distinct features: instant digital delivery, eliminating physical shipping and the risk of loss; quick activation via QR code without needing a physical store visit; and environmental friendliness due to no physical waste. Unlike traditional SIMs, it allows dual SIM functionality if your phone supports it, keeping your home number active.

5. What types of data plans are available with the Commbitz Japan eSIM?

The Commbitz Japan eSIM offers flexible data plans tailored to various travel needs. Options typically include daily data allowances, total data packages ranging from 500MB up to 50GB, and in some cases, unlimited data plans for continuous high-speed internet access. Travelers can choose a plan that best suits their expected data usage.

6. How do I activate and install the Commbitz Japan eSIM on my device?

Activating the Commbitz Japan eSIM is simple. Once purchased, you will receive an email containing a QR code. On your compatible smartphone, go to your cellular settings, choose to add a cellular plan, and then scan the provided QR code. Follow the on-screen prompts to complete the installation and activate your high-speed data service.

7. What kind of internet speed and coverage can I expect with the Japan eSIM?

The Commbitz Japan eSIM provides access to high-speed 5G/4G internet connectivity, ensuring a reliable and fast connection throughout major cities and popular tourist areas across Japan. Coverage is generally robust, allowing for smooth browsing, streaming, and communication during your travels.

8. Which devices are compatible with the Commbitz Japan eSIM?

The Commbitz Japan eSIM is compatible with most newer smartphone models that support eSIM technology. This typically includes iPhone XS/XR and newer, Samsung Galaxy S20 series and newer, and Google Pixel 3 and newer devices. It's recommended to check your specific device's compatibility before purchasing.

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