For Overseas Travel and Business Trips
Four Reasons to Choose Lion eSIM

High Quality at a Low Price
Reliable major-carrier network quality at a great price, with everything completed online.

Same-Day Delivery at the Earliest
Receive it online and start using it right away.

Clear and Easy Setup
Simply scan the QR code to set it up.

Japanese Chat Support 365 Days a Year
Get help with setup and connection issues. Multilingual support is also available.
Setup takes just
4 steps!
Connect as Soon as You Arrive

Step 1.Check Device Compatibility
Enter a code on your phone's keypad to check whether your smartphone is compatible→ See how to check

Step 2.Place Your Order
Receive the QR code by email after payment

Step 3.Set Up
Scan the QR code while connected to Wi-Fi

Step 4.Start Using the Service
After arriving at your destination, turn on “Data Roaming”


How to Set Up Your eSIM
Customer Reviews


Woman in her 20s | South Korea, 3 days
I was nervous about setting up an eSIM for the first time, but I completed the setup successfully before departure and felt very reassured when it worked immediately after I arrived at the airport. Being able to search maps and find cafés right away was incredibly convenient. I would definitely use it again.


Man in his 30s | Thailand, 6 days
I used it during a workation that combined a business trip with sightseeing. The connection remained stable throughout my stay, so it was very comfortable to use. When I became concerned about my remaining data and contacted support, I received a quick reply via chat, which was reassuring.


Man in his 40s |
Singapore and Malaysia, 5 days
I purchased it the day before an overseas business trip. The QR code arrived quickly, and I completed the setup that same day. It was extremely convenient to use across multiple countries without switching anything. I would definitely use it again on future overseas business trips.


Woman in her 30s |
France and Italy, 8 days
I used it while traveling in Europe. Although I moved between cities such as Paris and Rome, I had a smooth connection everywhere and could use it with confidence. Being able to check train times and routes immediately was a huge help.
Frequently Asked Questions About Using eSIM (FAQ)
Which smartphones support eSIM?
To use an eSIM, your device must have an “EID.” Open the Phone app and enter “*#06#.” If an EID is displayed, you can use Lion eSIM.
Please also make sure that your device is SIM-unlocked.
Please also make sure that your device is SIM-unlocked.
What is the process for getting started?
① Check whether your device supports eSIM.
② After purchase, we will normally email your setup information within about 30 minutes.
(Delivery may take longer when orders are especially busy.)
③ Follow the QR code and instructions in the email to complete setup.
④ After arriving at your destination, connect to the network (activate the eSIM) to begin using it.
② After purchase, we will normally email your setup information within about 30 minutes.
(Delivery may take longer when orders are especially busy.)
③ Follow the QR code and instructions in the email to complete setup.
④ After arriving at your destination, connect to the network (activate the eSIM) to begin using it.
When does the usage period begin?
The usage period begins when you scan the QR code and install the eSIM on your device. We recommend completing setup after arriving at the destination airport while connected to local Wi-Fi.
Preparation tip:
We recommend having another device that can display the QR code, such as a PC or a family member’s phone, or a printed copy.
Travel with the QR code ready in advance.
Preparation tip:
We recommend having another device that can display the QR code, such as a PC or a family member’s phone, or a printed copy.
Travel with the QR code ready in advance.
How do I set it up?
Scan the QR code on the “Download Page” included in the email sent after purchase.
For details, see the setup instructions for your device.
・eSIM Setup (iOS)
・eSIM Setup (Android)
For details, see the setup instructions for your device.
・eSIM Setup (iOS)
・eSIM Setup (Android)




