Which phone are you taking?
Choose your exact model to check it before you buy.
Some browsers can only identify the phone family.
No IMEI or EID number is needed here. Keep private device numbers private.

Choose your daily high-speed allowance.
Choose an allowance above. You can change it anytime before buying.
High-speed data each day. Speeds may reduce after your allowance, until the next reset.
Your Japan eSIM
Choose an allowance to see your total and check the details before adding it.
In stock
Check the allowance, speed and validity on your chosen plan.
From choosing data to getting online after landing.
The amount you can share depends on the option. A seven-day 10Mbps plan includes 6GB of sharing, while the seven-day full-speed offer has no separate sharing allowance. Longer local KDDI plans have their own trip allowance: fourteen days includes 13GB to share, plus different calendar-day and roaming settings. Choose the actual option to see those details together.
Compare the services and practical conditions for your trip.
Read the guideWork through a data budget, then try your own dates and habits.
Read the guideCompare the services and practical conditions for your trip.
Read the guideMaps, trains and the little things worth knowing.
Read the notes| Coverage | 🇯🇵 Japan |
|---|---|
| Networks | Networks vary by plan. Choose a plan to see its supported networks. |
| Data type | Standard data, Unlimited data, Daily high-speed |
| Validity | 1 day, 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, 30 days, 31 days, 180 days |
| Speed | 4G/5G |
| Hotspot | Yes |
| When it starts | First connection to a supported local network |
Your plan, your setup and a little help along the way.
Choose an allowance above. We’ll show its networks, hotspot details and what happens when your data is used.
Choose a planLand first.
Then install.
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.
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.
Wi-Fi not working? Wait for hotel Wi-Fi or another steady, trusted connection before installing.
Check that your phone supports eSIM and is network unlocked before buying.
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.
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.
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.
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.

Make Smartraveller part of your trip planning. Check the latest travel advice, entry requirements and local information before you go.
Compare eSIMs that cover Japan and your next stops.
Choose your exact model to check it before you buy.
Some browsers can only identify the phone family.
No IMEI or EID number is needed here. Keep private device numbers private.
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.
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.
This means it is not locked to one mobile provider. It is different from your screen passcode.
We'll check the exact model, sales-region exceptions, the maker’s Add eSIM option, EID in Settings and provider lock before sending you towards checkout.
No IMEI or EID number is needed here. Keep private device numbers private.