Unlimited
au (KDDI) 5G
Best for: Video, hotspot for the family, long days out
- No daily data cap
- Tethering included
- Days reset at midnight Japan time
from $14.61
Data only · not recommended for Google Pixel
Home › Plans › Japan
Since 2014 TravelSIM Japan · a Tokyo company
Japan eSIM — online the moment you land
Unlimited au (KDDI) 5G or a daily-data plan. Your QR code arrives by email minutes after payment — install it at home, switch it on in Japan.
From $9.99 tax included · 16 plans · 3–31 days
- QR by email in minutes
- Money-back guarantee
- No passport registration
- Travel AI Rescue included
Your eSIM QR code has arrived
- Since 2014selling travel SIMs on travelsim-japan.com
- Japanese networksau (KDDI) and SoftBank 5G plans
- Money backif it doesn’t connect for you
- Secure checkoutcard payment via Stripe
Also featured in RBB TODAY, MONOQLO, LDK and more of Japan’s leading tech and travel media.
Pick in 10 seconds
Which plan fits your trip?
2GB every day
Japanese local network
Best for: Maps, messaging, social, ride-hailing
- 2GB high-speed data each day
- Then 384kbps — still fine for chat
- Plans from 3 to 12 days
from $13.35
Data only
Multi-carrier 10GB
Multiple Japanese carriers
Best for: Countryside, road trips, crowded events
- Switches to the strongest network
- 10GB to use at your own pace
- Valid for 15 or 30 days
from $18.95
Data only · stops when 10GB is used
How it works
Three steps, no shop visit, nothing to return
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Choose & pay
Pick your days and data. Checkout takes about two minutes by card.
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Get the QR by email
It arrives minutes after payment. Scan it at home over Wi-Fi before you fly.
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Land and connect
Turn on the eSIM line when you land, and you’re online for maps, trains and messages.
Good fit
An unlocked phone that supports eSIM, and data for maps, messaging, translation, ride-hailing and sharing photos. Tethering works too.
Not a fit
You need a Japanese phone number (all plans are data only), or your phone is carrier-locked or doesn’t support eSIM. Check your phone →
All plans
Every Japan plan, by days and data
Tap a number of days to see the price. Prices include tax, the money-back guarantee and Travel AI Rescue.
Multi-carrier SIM — widest coverage
Not tied to one network: it connects to whichever of several Japanese carriers is strongest where you are — useful in the countryside, at festivals and on long travel days.
About TravelSIM Japan
A Japanese travel-SIM brand since 2014
We registered travelsim-japan.com in October 2014 and have sold SIMs for travelers ever since — first physical SIM cards, now eSIMs. We are Jag Project, LLC, a registered company in Koto-ku, Tokyo, so the people behind your eSIM are in Japan too.
- 2014travelsim-japan.com opens
We start selling TravelSIM — prepaid data SIMs for travelers.
- 2015Jag Project, LLC founded
The company behind TravelSIM is founded in Tokyo.
- 2020Our first eSIM
TravelSIM eSIM for iPhone — download-only, no card to post.
- 2026eSIM only, with a guarantee
Every plan now includes a money-back guarantee and Travel AI Rescue.
Compare
eSIM, pocket Wi-Fi or a SIM card?
| TravelSIM Japan eSIM | Pocket Wi-Fi rental | Airport SIM card | |
|---|---|---|---|
| How you get it | QR by email, minutes after payment | Pick up at the airport, or delivery to your hotel | Buy at the airport or a shop |
| Set up before you fly | ✓ | ✕ | ✕ |
| Extra device to carry and charge | None | Yes | None |
| Something to return | No | Yes | No |
| Keep your home SIM in the phone | ✓ | ✓ | ✕ swap it out |
| Share with travel companions | ✓ tethering | ✓ | Depends on the plan |
| Works on phones without eSIM | ✕ | ✓ | ✓ |
Included with every eSIM
Travel AI Rescue, for the bad day of a trip
Lost passport, stolen wallet, sudden illness or an eSIM that won’t connect: the travel AI tells you what to do next, drafts the police report and summarizes your insurance cover. It also keeps your eSIM setup guide available offline.
It stays with you for the whole trip, even if your eSIM is refunded. Travel AI Rescue bought on its own does not include the eSIM refund guarantee.
See how Travel AI Rescue works →FAQ
Questions before you buy
How much is a Japan eSIM?
Plans start from $9.99. Your QR code is delivered by email within minutes of purchase.
When will I receive my Japan eSIM?
Instantly — the QR code is issued automatically right after payment. Install it over Wi-Fi before your trip.
What if it doesn't work?
A money-back guarantee is included with every eSIM: get up to 100% of the eSIM price back depending on usage if it doesn't work for you (50% if partially used; not eligible once used up).
Is the unlimited plan really unlimited?
Yes. The Unlimited au (KDDI) 5G plan has no daily data cap, and each day switches at midnight Japan time. Tethering is included; tethering has its own allowance and then slows to 128kbps. It is data only and not recommended for Google Pixel phones.
Do I get a Japanese phone number?
No. All Japan plans on this page are data only. You can still call and message over apps such as WhatsApp, LINE or FaceTime.
Do I need to register my passport?
No passport registration is needed to activate the Japan plans on this page — just scan the QR code. For a few plans the local network’s ID rules may change before or during your trip; those plans say so on their card.
Who runs TravelSIM Japan?
Jag Project, LLC, a company in Koto-ku, Tokyo. We have sold travel SIMs on travelsim-japan.com since 2014 and moved fully to eSIM in 2026.
Land in Japan already connected
From $9.99 · QR by email in minutes · money-back guarantee · TravelSIM Japan since 2014