We’ll email your setup details when your eSIM is ready. Save the email for your arrival.
Wait until you have landed before using Quick Install, scanning the QR code, entering the manual code or activating the eSIM.
After you land
Connect to Wi-Fi. Then install.
Join the airport’s passenger Wi-Fi and complete its sign-in screen. Open a webpage to check you’re connected.
Then open your SIM Shop setup email and follow the instructions to install and activate your eSIM.
Before you go onlineChoose a plan to see its mobile data settings. Local KDDI and roaming plans use different settings.
Wi-Fi not working? Wait for hotel Wi-Fi or another steady, trusted connection before installing.
Phone checkYour phone comes first.
Check that your phone supports eSIM and is network unlocked before buying.
For the journey
Japan eSIM data for the journey
A Tokyo to Kyoto to Osaka itinerary needs data for station exits, hotel addresses, translation and reservations as well as sightseeing. Save your first transfer and accommodation details on Wi-Fi before heading out. Rail tunnels, underground stations and remote stretches can interrupt reception even when Japan is included.
Messages and calls in apps use your data. Standard calls, SMS and a local number need a separate mobile service.
Compare the available plans
Data plansOne data allowance to use across the whole trip.
Day passesA set amount of high-speed data each day.
Choose fixed data for one allowance across the plan, or daily high-speed data for a fresh allowance at each reset. Compare the total price, reset time and reduced-speed terms before choosing.
Buy Japan eSIM data before you travel. Pick the data amount that fits your trip and save the setup email, but do not tap quick install, scan the QR code, enter the manual code or activate the eSIM before departure.
Tokyo, Kyoto, Osaka and the journeys between
A Tokyo to Kyoto to Osaka itinerary needs data for station exits, hotel addresses, translation and reservations as well as sightseeing. Save your first transfer and accommodation details on Wi-Fi before heading out. Rail tunnels, underground stations and remote stretches can interrupt reception even when Japan is included.
Heading to Hokkaido for a drive or Okinawa for an island stay? Check the chosen plan’s supported network for your actual accommodation and route. Download the maps you will need away from larger towns. A 5G-capable plan and phone do not guarantee 5G at every stop.
Japan only, or South Korea as well?
For Tokyo plus Seoul, compare the exact country list and total allowance on a Japan and South Korea plan with two separate country plans. A shared regional allowance does not restart when you cross the border. Choose based on your dates and data budget, not simply the number of destinations on the label.
Daily high-speed options are day passes with a set high-speed amount each day. After that daily amount is used, speeds may reduce until the next daily reset.
These plans are data-only unless a product option says otherwise. They do not include a local phone number for standard calls or SMS. Check compatibility, coverage, validity and hotspot needs before purchase.
Recommended setup timing: buy before you fly, then install only after you land. Join the airport’s free passenger Wi-Fi where offered, complete its sign-in page and open a normal webpage to prove it works. If it is unavailable or unstable, wait for hotel Wi-Fi or another steady trusted connection. Open your SIM Shop setup email and install only when that Wi-Fi test works.
We will guide you through one quick check at a time without leaving this plan.
Phone check
Phone check
Which phone are you taking?
Choose the exact model. We will ask only the checks that model still needs.
eSIM
Popular:
Best on the phone you will travel with. iPhone and some browsers may only reveal the phone family.
No IMEI or EID number is needed here. Keep private device numbers private.
Phone check
One quick check at a time
CheckingChoose a phone model first.
Where was the phone bought?
On this phone, is there an Add eSIM option?
iPhone: Settings > Cellular, Mobile, Mobile Service or Mobile Data > Set Up Mobile or Add eSIM. Pixel: Settings > Network & internet > SIMs > Add SIM > Set up an eSIM. Galaxy: Settings > Connections > SIM manager > Add eSIM. Do not tap through or start setup before departure.
Can you find an EID in Settings?
iPhone: Settings > General > About. Pixel: Settings > About phone > SIM status. Galaxy: Settings > About phone > Status information. Seeing an EID can help, but it does not confirm compatibility on its own. Never type or send the number here.
Can this phone use another provider's SIM or eSIM?
This means it is not locked to one mobile provider. It is different from your screen passcode.
Model list + exceptionsWe check known support and important purchase-location differences.
No private device numbersWe do not ask for your IMEI, EID or personal phone data.