Mobile Connectivity for Expo 2025 - Japan

An eSIM (embedded SIM) is a digital alternative to traditional physical SIM cards, offering a simple and convenient way to stay connected during your trip to Japan. Unlike a physical SIM card that you insert into your phone, an eSIM is virtual and can be easily installed directly on your device.

Here’s how it works:
• If you have a compatible device, you can install the eSIM by scanning a QR code provided after purchase or using another available installation method.
• Once installed, your device connects to the local network in Japan.
• You’ll have access to cellular data across Japan.
• You don't have to swap physical SIM cards or search for local stores – the entire process is digital.

Digital SIMs are becoming increasingly popular, especially among travelers, and for good reason! Here are some advantages of using an eSIM:

• eSIMs offer instant installation. Most providers deliver the eSIM immediately after purchase, allowing you to install it before your trip even begins. Activation happens at your destination—simply enable data roaming to connect with a local network provider.
• eSIMs are often cheaper than international roaming. Prepaid mobile internet plans help you avoid unexpected charges, making eSIMs a great choice for managing your budget while traveling.
• No need to carry or swap tiny plastic SIM cards. With an unlocked device (please check compatibility first), you can use an eSIM Japan during your trip. It’s a smart solution because your physical SIM card with your home country number stays safely in your phone while you enjoy your eSIM cellular plan.
• Switching from physical SIMs helps reduce plastic waste!

Purchasing an eSIM for Japan is simple and straightforward. Follow these steps to get connected:

• Buy your eSIM directly from this page by selecting an available data plan and proceeding to checkout.
• Before completing your purchase, confirm that your smartphone supports eSIM technology. You can check compatibility here.
• After the purchase, your eSIM QR code and activation details will be available in your account. Follow our step-by-step guide for installation. If you use an iPhone, you can initiate the installation in the app with just one tap. No QR codes or activation codes are needed.
• Once you arrive at your destination, enable data roaming, and your eSIM will connect you to a local network. We’re here to assist if you need help with activation.
• With the WonderConnect app, you can do it all: buy, install, and activate an eSIM, as well as check how much data you have left—anytime, anywhere.

eSIM technology offers ultimate convenience. You can purchase an eSIM weeks before your trip to Japan or even after you’ve arrived at your destination.

If you buy the eSIM before your trip, we’ll guide you through the installation process while you’re still at home and provide detailed activation instructions for use once you arrive in Japan.

For a seamless experience, we strongly recommend using the WonderConnect app for purchasing, installing, and managing your eSIM. With the WonderConnect app, you’ll stay online effortlessly throughout your entire trip.

A single-country eSIM is designed to work only within the borders of a selected destination. If your stopover is in another country, the eSIM will not provide mobile data during that time.

To use eSIM data across multiple countries, consider purchasing a Global eSIM. This option offers mobile data coverage in over 100 countries, making it the only eSIM you’ll need to stay online worldwide.

Most new smartphones support eSIM. However, if you’re unsure, you can check your device’s compatibility on our list.

• Check if your device is eSIM compatible.
• Select a data plan that suits your needs.
• Install your eSIM using our step-by-step guide available in the app. Please note: eSIM installation requires a stable Wi-Fi connection.
• If you are already at your destination, activate your eSIM. Don’t worry—we’ll guide you through the process, and it only takes a few taps!

Enjoy staying connected!

You can always top up your eSIM using your web account or the mobile app. Multiple top-up options are available, each providing extra data and extending your plan's validity. You can even purchase a top-up before running out of data or before your validity period ends. The top-up will be queued and activate automatically when needed.