Choose and purchase
Pick your data amount and pay securely in Japanese yen. We only ask for the email that should receive your eSIM.
Choose a plan, receive your QR by email, and install before takeoff. Turn it on in Japan and you are online.
Supported networks4G
eSIM installedSwitch on after landing
QR deliveryUsually within minutes
Tell us your stay length and how you use data. We will surface the simplest match; you can still compare every option.
No Japan eSIM plan is on sale right now. Please check again later or ask eSIM support.
You do not need to wait until Japan. Complete the fiddly part while you still have a reliable connection.
Pick your data amount and pay securely in Japanese yen. We only ask for the email that should receive your eSIM.
Open the email on another screen and scan the QR from the phone you will use in Japan.
After landing, enable the eSIM for mobile data and turn on data roaming for this line.
Your phone must support eSIM and be carrier-unlocked. An EID in your device settings is the quickest positive signal.
iroiro AI is focused on eSIM questions — compatibility, QR installation, activation, roaming, and connection troubleshooting.
The small details that make arrival smoother.
Most plans begin when the eSIM first connects to a supported network in Japan, not when you install it. Follow the activation note shown with your selected plan.
Yes. Keep your regular SIM for calls and messages, and choose the iroiro eSIM for mobile data. Turn off mobile-data switching if you want to avoid accidental roaming.
No. These are data-only plans. Use internet calling and messaging apps for calls, and use a hotel phone or another voice line for emergency numbers.
Open iroiro AI and tell it your phone model and what you see on screen. It will walk through the eSIM line, data roaming, APN, and network-selection checks.