The best Japan eSIM for Americans! 🇺🇸

Loved for speed and support.

Experience exceptional speeds with local providers and enjoy comprehensive coverage throughout Japan. We ensure your connectivity needs are met, allowing you to explore breathtaking landscapes, rich culture, and vibrant cities without any interruptions. Stay connected and make the most of your Japanese adventure!

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Activate in 30 seconds with a QR code scan

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Guaranteed $0.00 roaming charges

🎃 ⚠️ Achtung nicht erschrecken! 👻
Die BuddySIM Spoooooky Deals sind da!

Bis einschließlich Sonntag den 05.11.2023 erhältst Du beim Kauf
von mindestens zwei eSIM Paketen automatisch 13% Rabatt auf deine gesamte Bestellung.

One eSIM, many countries

With the BuddySIM Explorer Bundle, you can activate one eSIM on your smartphone and surf simultaneously in the following countries without roaming fees or swapping SIM cards:

Our Japan eSIM packages

Your eSIM will be delivered as a QR code to the email address you provide right after your purchase! If you only have your phone available, there’s no need to worry. We will send you the necessary details for manual eSIM activation per emal and SMS, ensuring you can easily get connected wherever you are.

Traveler's Favorite

1 GB Japan eSIM

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eSIM Japan with Prepaid LTE | 4G | 5G data volume
€9,99
9,99€
per GB
pro Tag

7 Days Validity

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Traveler's Favorite

2 GB Japan eSIM

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eSIM Japan with prepaid LTE | 4G | 5G data volume
€16,99
8,50€
per GB
pro Tag

15 Days Validity

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Traveler's Favorite

5 GB Japan eSIM

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eSIM Japan with Prepaid LTE | 4G | 5G data volume
€ 39,99
8,00€
per GB
pro Tag

30 Days Validity

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Traveler's Favorite

10 GB Japan eSIM

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eSIM Japan with Prepaid LTE | 4G | 5G data volume
€59,99
6,00€
per GB
pro Tag

30 Days Validity

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Traveler's Favorite

20 GB Japan eSIM

*
eSIM Japan with Prepaid LTE | 4G | 5G data volume
€ 99,99
5,00€
per GB
pro Tag

30 Days Validity

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Traveler's Favorite

50 GB Japan eSIM

*
eSIM Japan with prepaid LTE | 4G | 5G data volume
€ 199,99
4,00 €
per GB
pro Tag

30 Days Validity

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Here's how it works!

In just three simple steps, you’ll be online in your destination with our eSIM!

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1. Check Compatibility: Verify if your device is eSIM-compatible. You can find all compatible models here: Compatible Devices.

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2. Choose a Plan: Select the eSIM package that best fits your travel needs.

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3. Scan the QR Code: Scan the QR code provided in our email and enjoy seamless surfing!

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Customer Testimonials for our Japan eSIM

Here you can find the latest reviews from our customers.

Review Quotes

“You solved our roaming problem. I was always well connected with you on my trip - simply great! Thank you!”

Julian K.

Hamburg

Review Quotes

“Quick and easy - with your eSIM I was able to surf on vacation without any problems.”

Anja A.

Frankfurt

Review Quotes

“The eSIM was easy to install and worked perfectly. The network was great.”

Thomas A.

Dresden

Frequently Asked Questions

Our support team is available for any questions you may have via phone, email, or a quick WhatsApp chat.

What is an eSIM?
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An eSIM (embedded SIM) is a built-in SIM card in your smartphone that replaces your physical SIM card and is activated digitally.

Is my device eSIM compatible?
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Most newer smartphones and tablets are eSIM-compatible. You can find all eSIM-capable devices here. Additionally, the following requirements must be met: Roaming must be enabled on your device, and it should be unlocked.

Are there roaming fees?
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No, with BuddySIM, there are no roaming fees from your main contract.

When will my eSIM be activated?
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The validity period and data usage of your eSIM package begin only when data roaming is activated on your device and the eSIM connects to the network. Therefore, the start of data consumption marks the beginning of the validity period, which lasts for either 7 or 30 days. If you have a future trip planned, you can conveniently install your BuddySIM in advance and activate data roaming only when your journey begins.

Is this a subscription?
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No, there is no contractual obligation with your BuddySIM. It is a prepaid eSIM that expires after 7 or 30 days or once your data allowance is used up. There's no need for you to cancel anything!

Can I make calls or send SMS?
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The eSIM only allows you to use mobile data. It does not include a local phone number for making or receiving calls or messages.

Can I continue using WhatsApp and other apps?
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Absolutely! With your BuddySIM eSIM, you can continue using WhatsApp without any worries. Your WhatsApp number remains the same, even after activating our eSIM. This means all your chats and contacts will still be there, and you can make calls via WhatsApp.

Can I use the eSIM to create a hotspot?
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Of course! With your BuddySIM eSIM, you can easily create a hotspot for your laptop or other devices. Your speed will never be throttled, and there are no limits on usage. You can utilize the entire data allowance through the hotspot. 👍🏽

Can I top up my data later?
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If you have previously purchased a BuddySIM and your data is used up, you can easily top it up via WhatsApp without needing to install a new eSIM. Just send us a message with the keyword "Top Up."

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Go online instantly!

Travel freely and stay connected everywhere without roaming fees or expensive phone bills.

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Lightning-fast: After your purchase, you will receive an email containing the QR code to activate your eSIM.

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Connectivity guarantee: If you have no internet for more than 90 minutes in your destination, we will refund you 100%.

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Top Speed: Always fast data for all your apps, uncapped for the entire validity period.

Stay Connected in Japan
Japan, a country known for its technological innovation, rich cultural heritage, and breathtaking landscapes, is a top destination for travelers. Whether you're exploring the bustling streets of Tokyo, visiting the temples of Kyoto, or relaxing in the hot springs of Hakone, staying connected is essential. With an eSIM, you can instantly access local networks upon arrival—no need for a physical SIM card. Enjoy fast, reliable data and seamless coverage across Japan. For navigation, Google Maps works well for real-time directions in Japan, but NAVITIME and Japan Transit Planner are especially helpful for navigating the country’s extensive rail network, including the Shinkansen. For restaurant recommendations and discovering local attractions, Tabelog and Tripadvisor provide trusted reviews and suggestions. For food delivery, Uber Eats and Demae-can are the go-to apps in Japan, offering convenient access to local cuisine. If you're looking for concerts, cultural events, or festivals, Peatix and Rakuten Tickets are the leading platforms for tickets and event information. Top destinations in Japan include Tokyo, Kyoto, and Osaka, each offering a unique mix of modern wonders, historical sites, and cultural experiences.
Japan
Japan is known for its rich culture, advanced technology, and beautiful landscapes. Tokyo is famous for its mix of traditional and modern attractions, including the historic Senso-ji Temple and the bustling Shibuya Crossing. Kyoto offers stunning temples, traditional tea houses, and beautiful gardens, making it a must-visit for those interested in Japanese culture. Osaka is known for its vibrant food scene, including street food in Dotonbori and the impressive Osaka Castle.
Japan
Japan generally provides excellent coverage throughout the country. In Tokyo, NTT Docomo 95%, SoftBank 90%, AU 85%. In Kyoto, AU 94%, NTT Docomo 89%, SoftBank 78%. In Osaka, SoftBank 93%, NTT Docomo 88%, AU 75%. Buddysim uses a mix of these networks to provide the best coverage and speed!
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