As much as you need, when you need it!
Data-only
Prepaid internet (for Japan only)
eSIM

- Complete your applications online
- The largest data available at the lowest prices in the industry!
- Use anywhere in Japan!
※Supports NTT Docomo's network coverage.

What is a data-only eSIM?
An eSIM is a digital SIM technology used in place of a SIM card. eSIMs integrate into your device, doing away with the need to replace the physical SIM card. Data-only prepaid SIM cards only enable access to the internet.
*Available only for eSIM compatible models
Voice call eSIM
- 〇Data communication
- 〇Call
- 〇 SMS
Simple functions,
So cheap!
eSIM for data communication only
- 〇Data communication
- × Call
- × SMS

Complete your
applications online
No identity verification necessary. We accept payments via credit card and Japanese convenience stores.

Usable immediately
after purchase
You will receive a URL to download your eSIM shortly after you complete your payment. Simply configure it to your device and you're good to go!

Available for purchase
outside Japan
You can purchase and download an eSIM before entering Japan to ensure instant access to the internet upon your arrival.

Can be used
anywhere in Japan
Our network coverage extends throughout Japan. Rest at ease wherever you go in Japan.
*Supports NTT Docomo's network coverage

Also usable on devices
other than smartphones,
such as tablets and smart watches.
*Available only for eSIM compatible models

Also works as a dual SIM!
You can also use it separately as a secondary connection or hotspot!
*Available only for dual SIM compatible models
Recommended for stiuations like these!

Perfect for tourists and temporary returnees
Our network coverage extends throughout Japan, giving you peace of mind during your travels. This service works anywhere in Japan, including when in transit and on the subway.

For temporary capacity addition, such as sudden hospitalization or returning home
Even in places without a WiFi environment, you can still use the Internet as usual.

For Dual SIM use
You can use it separately as a secondary connection. We recommend temporarily increasing your data allowance when your connection speed drops from throttling.
The Rakusim network covers 99% of Japan.
We provide the perfect eSIM service for travelers visiting Japan. With Rakusim, you can easily access local data plans using a virtual SIM, ensuring seamless connectivity at an affordable price. Whether you're at the top of Tokyo Tower, hiking Mount Fuji, or strolling through the lush bamboo groves of Arashiyama, Rakusim keeps you connected. Capture and share your unforgettable moments on social media to make your journey even more memorable. With Rakusim’s reliable and high-speed eSIM, we promise you a smooth and enjoyable travel experience. Make your adventures in Japan more convenient and exciting. Start planning your trip today!
*NTTdocomo is Japan's leading telecommunications network. High-speed 4G LTE communication is available.
Internet communication is only possible in Japan.

Differences between SIM and Wi-Fi
eSIM for data communication only
SIM
Wi-Fi rental
- price
-
Affordable internet rates
-
Basic charges and shipping charges apply
-
Expensive for communication capacity
- Procedure
-
Apply online! Immediately ready to use!
-
Purchase online or in store
It takes time for the product to arrive -
Pre-registration required. Pick up the product on-site or by mail.
- Initial setting
-
Internet connection required
-
Initial setup required
-
Can be used as is
- communication speed
-
Docomo line (MVNO)
-
docomo line etc.
-
Each carrier line
- Damage/loss risk
-
No physical SIM means no risk of damage or loss.
-
Replacement of SIM is required. There is a risk of damage or loss.
-
There is a risk of damage or loss.
- Overseas compatible
*Used by people outside Japan -
Available for use in Japan
-
Cannot be used by anyone other than Japanese carriers
-
Available for local rental
Flow of usage

Purchase the internet plan of your choice

A URL to download the eSIM is delivered to your email address.

Configure the settings for your device and connect to the internet.

The use of the eSIM is subject to the following conditions.
Please make sure in advance that your device complies with the items below.

For eSIM compatible models
Please confirm in advance whether your device can supports eSIM.

SIM unlock
Unlocked devices support eSIMs, while locked devices must be unlocked before allowing eSIM use.
Consult your mobile carrier's website for instructions on how to unlock your SIM.
Search "(Your mobile carrier's name) SIM unlock" for quick and easy instructions on how to unlock your SIM card.

Internet connection
Internet connections, such as those via Wi-Fi, are required to download the eSIM.
Visitors coming to Japan can use the internet immediately upon arrival by downloading an eSIM< before departing from their country.
*Our products are intended for use exclusively in Japan. The eSIMs are for connecting to the internet only. Phone calls and SMS services are not available.
Product plan
Payments are accepted in Japanese Yen (¥).Japan eSIM 50GB/31 days
- Usage period
- 31 days
- Fee
- $29.85
Japan eSIM 50GB/16 days
- Usage period
- 16 days
- Fee
- $21.59
Japan eSIM 30GB/8 days
- Usage period
- 8 days
- Fee
- $18.42
Estimated data usage
app
Communication amount/1h
10GB
20GB
30GB
-
YouTube (360p)
- 0.3GB
- 31 hours
- 64 hours
- 93 hours
-
YouTube (720p)
- 1.0GB
- 10 hours
- 20 hours
- 30 hours
-
ZOOM
- 0.6GB
- 16.3 hours
- 32 hours
- 48.9 hours
-
LINE (voice call)
- 0.018GB
- 555 hours
- 800 hours
- 1665 hours
-
LINE (video call)
- 0.3GB
- 32.6 hours
- 65.2 hours
- 97.8 hours
-
TikTok
- 0.54GB
- 18.5 hours
- 37 hours
- 55.5 hours
-
Netflix (Standard/480p)
- 0.7GB
- 14.3 hours
- 15 hours
- 42.9 hours
-
Netflix (high quality/1080p)
- 3.0GB
- 3.3 hours
- 6.6 hours
- 9.9 hours
-
Prime Video (Standard)
- 0.27GB
- 37 hours
- 74 hours
- 111 hours
-
Prime Video (high quality)
- 0.77GB
- 13 hours
- 26 hours
- 39 hours
Corporate Customers
Rakusim also supports invoice payment for corporate customers.
[Example of consultation]
・I want to add an eSIM option to travel plans for foreign visitors to Japan. ・I want to prepare an eSIM for a foreign client. ・I want to sign a corporate eSIM contract for a temporary return to Japan. ・I want to use an eSIM on a temporary business trip.
We can also provide products other than those listed on the website.
Please feel free to contact us.
We also offer special service plans for corporate customers. Please check here for details.
Contact us
FAQ
Can I change or cancel my order?
Your eSIM will be delivered via email. Cancellations will not be accepted under any circumstances after the delivery. Any changes or cancellations must be made prior to the delivery of the email.
Are there any initial fees or penalties?
There are no fees outside of the plan fees.
Can I make or receive phone calls?
This is a data only SIM. It does not support phone calls.
How do I apply for this service?
After you complete your order, we will send you a separate email with the URL for downloading the eSIM (for issuing an activation code). Please refer to the activation procedure described in that email and complete the activation procedure.
[Settings Procedure]
android_Japanese
android_English
How to set up (video) android_English
iPhone_Japanese
iPhone_English
How to set up (video) iPhone_English
Media Coverage
It was featured on the smartphone information variety show "Eejanaika!!" (TOKYO MX Broadcasting)!