Features
Why Choose WILLER eSIM?
Ultra-Fast 5G
Seamless streaming and instant navigation.
Truly Unlimited Data
No data limits.
Enjoy as much as you need.
Nationwide Coverage
Reliable KDDI connection across all of Japan.
Hotspot Supported
Turn your smartphone into
a Wi-Fi hotspot.
Choose Your Plan
All plans include unlimited
high-speed data. No hidden fees.
- 3 - 31 days plans
- Low-cost, Unlimited 5G
- One-time purchase only
- No app downloads
Select number of days
Your Plan: 3 days 4 days 5 days 6 days 7 days 8 days 9 days 10 days 11 days 12 days 13 days 14 days 15 days 16 days 17 days 18 days 19 days 20 days 21 days 26 days 31 days
1,490 yen
1,930 yen
2,370 yen
2,810 yen
3,250 yen
3,690 yen
4,020 yen
4,350 yen
4,790 yen
5,230 yen
5,560 yen
5,890 yen
6,110 yen
6,550 yen
6,990 yen
7,320 yen
7,760 yen
8,200 yen
8,640 yen
9,540 yen
10,940 yen
Get Started Now!
Verify Your Email
Supported Devices
WILLER eSIM works with eSIM-compatible unlocked devices.
Ensure your device is compatible
with eSIM before purchasing.
How It Works
Get online in 3 simple steps
1 Purchase
Choose your plan and complete your purchase.
2 Scan
Scan the QR code
you receive
3 Activate
Activate your eSIM and enjoy your trip!
Payment Methods
FAQ
Is there a way to check if my device is compatible with WILLER eSIM?
Please check the "Supported Devices" on this page. Even if your device is not on the list, it can still be used if it complies with the network standards provided by WILLER eSIM.
How do I activate my WILLER eSIM?
Please refer to the page below for further details.
https://willer-travel.com/en/guide/esim/activate.html
When can I start using my WILLER eSIM after purchase?
After your purchase is confirmed, you will receive an activation QR code and setup details. Your service will be ready for use once you have manually completed the activation on your device.
Can I cancel if my device is not compatible with WILLER eSIM?
We do not accept refunds, exchanges, or cancellations for any customer-related reasons. Please ensure all order details are correct before completing your purchase.
Does WILLER eSIM support domestic voice calls?
WILLER eSIM provides mobile data communication only and does not support voice calls via phone number.
I haven't received the verification email.
Please follow these steps if you do not see the email in your inbox:
- Check your email address: Ensure that the address you entered during purchase is correct.
- Check your Spam/Junk folder: The email may have been filtered automatically.
- Update your domain settings: Your email provider may be blocking our emails.
Please ensure you can receieve emails from the domain "@willer.co.jp". - Use an alternative email address: If the issues persists, consider using a different email address.
What should I do if I don't receive a confirmation email after completing my purchase?
Please follow these steps if you do not see the email in your inbox:
- Check your email address: Ensure that the address you entered during purchase is correct.
- Check your Spam/Junk folder: The email may have been filtered automatically.
- Update your domain settings: Your email provider may be blocking our emails.
Please ensure you can receieve emails from the domain "@willer.co.jp". - Use an alternative email address: If the issues persists, consider using a different email address.
Note: You can also view your Activation QR Code directly on the Order Details page. To access it, please enter your Order Number and your registered email address.
Important Notice
Please confirm the following items before purchasing your WILLER eSIM.
Purchase WILLER eSIM
Verify Your Email





