How to Get Japan eSIM Before You Arrive

How to Get Japan eSIM Before You Arrive

Updated: 2024-09-13 08:59:41

Traveling to Japan has become more convenient than ever with the advent of eSIM technology. If you're planning a trip and want to ensure seamless connectivity from the moment you land, getting a Japan eSIM before you arrive is a smart choice. Obtaining an eSIM before you arrive in Japan not only saves you the hassle of finding a SIM card vendor at the airport but also ensures that you avoid any potential connectivity issues, providing you with immediate internet access as soon as you touch down in Japan.

In this guide, we will walk you through the process of obtaining a Japan eSIM ahead of time, highlighting the steps, benefits, and considerations to make your journey smooth and hassle-free.

Step 1: Check Your Device Compatibility

Before you purchase an eSIM, it's crucial to ensure that your device supports eSIM technology. Most modern smartphones, including recent models from Apple, Samsung, and Google, are eSIM-compatible. However, it's always a good idea to double-check your device's specifications to confirm compatibility.

To verify if your device supports eSIM, follow these steps:

If your device displays an option for eSIM, it's compatible. If not, you may need to consider alternative connectivity options.

One more way is to dial *#06#.

Open your phone's dialer, and just dial *#06#. A screen with information will appear. If your phone is eSIM-compatible, you'll see an EID number in the list.

Please note that on some phones, the list may not be immediately obvious. Ensure you scroll all the way down, as the EID number might also appear as 'EID 2'.

Step 2: Choose a Reliable eSIM Provider

Once you've confirmed your device's compatibility, the next step is to choose a reliable eSIM provider. There are several eSIM providers that offer Japan eSIMs with various data plans and coverage options. When selecting a provider, consider the following factors:

CDJapan Rental's eSIM service is a great option, offering competitive plans and coverage through Japan's leading carrier, docomo.

Step 3: Purchase and Activate Your eSIM

After selecting an eSIM provider, you can proceed with the purchase and activation process. Here’s a step-by-step guide:

  1. Visit the Provider’s Website: Go to the provider's website or app and choose the eSIM plan that fits your needs.
  2. Complete the Purchase: Follow the instructions to complete the purchase, which typically involves entering your personal details and payment information.
  3. Receive eSIM Details: After purchasing, you'll receive an eSIM activation code or QR code via email or through the provider's website/app.
  4. Activate the eSIM: Follow the provider’s instructions to activate the eSIM on your device. This usually involves scanning the QR code or entering the activation details in your device's settings.

You can start using a Japan eSIM right away or wait up to a month after purchase. Once activated, your usage period begins, so we recommend setting it up after you arrive in Japan.

Step 4: Enjoy Seamless Connectivity in Japan

With your eSIM activated, you can now enjoy seamless connectivity throughout your stay in Japan. Whether you're navigating the bustling streets of Tokyo or exploring the serene countryside, your eSIM will keep you connected without the need for physical SIM cards or Pocket WiFi devices.

CDJapan Rental's eSIM service offers reliable coverage through docomo's extensive network, ensuring you stay connected no matter where you go in Japan. Feel free to check CDJapan Rental's eSIM plans and choose the one that best fits your travel needs.

Japan eSIM Plan Suitable For Price Detail
30GB/8 days Suitable for short-term use, 30GB of data is enough for all daily travel needs. 3,200 JPY
50GB/16 days Ideal for around two weeks of travel, ensuring enough data for daily use and emergencies. 3,900 JPY
50GB/31 days Suitable for longer trips and tourists with higher data needs. 4,900 JPY
135GB/91 days Perfect for tourists who are staying in Japan for a short period or on a working holiday. The eSIM provides data comparable to a WiFi device and can be used for up to 3 months. 10,800 JPY

Experience CDJapan Rental's eSIM Now


Getting a Japan eSIM before you arrive is a convenient and efficient way to ensure you have reliable connectivity throughout your trip. By following the steps outlined in this guide—checking device compatibility, choosing a reliable provider, purchasing and activating your eSIM, testing it before travel, and enjoying seamless connectivity—you can make your travel experience in Japan smooth and hassle-free.

Our company offers a range of Japan eSIM products that can be purchased and activated prior to your departure. With our eSIM, you can enjoy high-speed internet throughout your stay in Japan without the need to carry additional devices or swap out physical SIM cards.

For more information on our eSIM offerings and to find the best plan for your needs, visit CDJapan Rental eSIM service page. Safe travels and enjoy your time!

Find the best eSIM Japan plans

eSIM UNLIMITED data 5 days

UNLIMITED data

Period:5 days

¥2800

Network : docomo

eSIM UNLIMITED data 15 days

UNLIMITED data

Period:15 days

¥6300

Network : docomo

eSIM 50GB / 16 days

50GB

Period:16 days

¥3900

Network : docomo

eSIM 135GB / 91 days

135GB

Period:91 days

¥10800

Network : docomo

See all Plans

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