Did you search “PlanJapan reviews” or “is PlanJapan legit” before ordering? Good instinct. Here's who we are, in black and white: a registered French company, one single country — Japan — and verifiable proof rather than promises.
PlanJapan is a French site published by Artixia, a sole proprietorship registered in France under company number (SIRET) 940 112 949 00018, based in Cormeilles-en-Parisis, near Paris. No anonymous reseller, no exotic mailbox: the publisher's identity, the host and the terms of sale are published in our legal notice, reachable from every page of the site.
What we do fits in one sentence: we sell prepaid eSIMs designed for use in Japan, delivered digitally only — a QR code emailed roughly 2 minutes after purchase. Three plans, no more: data eSIM 10, 20 or 50 GB, unlimited eSIM from 10 to 30 days and a 50 GB/month subscription for longer stays.
You're buying on esimjp.com, but the same shop also exists in French (planjapon.com) and Spanish (esimjapon.com). Three languages, one single country: Japan.
1,500+ verified reviewsEvery figure below is verifiable: on our reviews page, on the product page or in our compatibility database.
Most eSIM sellers cover dozens of destinations, with Japan “among the rest”. We made the opposite choice: all our work — network, pricing, guides, support — is focused on a single destination. That's what lets us run on the NTT docomo network, Japan's number one carrier, include a Japan guide and a Google Maps map with every eSIM, and answer your questions as a traveller — not just your technical ones.
| PlanJapan — Japan specialist | Generalist eSIMs | |
|---|---|---|
| Destinations | Japan, and only Japan | Dozens of countries, Japan among them |
| Network in Japan | NTT docomo 4G/5G, ~99% data coverage | Varies by brand |
| Unlimited | Genuinely unlimited, no speed throttling | Often a “fair use policy” (reduced speed) |
| Tethering | Included with no limits on every plan | Sometimes limited |
| Travel extras | Japan guide + Google Maps map free (worth €29.98) | — |
| Support | 7 days a week, on WhatsApp and by email | Usually English only |
Don't just take our word for it: we've published a full Japan eSIM comparison, figures included, plus a detailed head-to-head PlanJapan vs Holafly. We encourage you to compare: that's how we win.
Four commitments, written in black and white — and honoured on every order.
On WhatsApp and by email, weekends included — an answer within minutes. A question before you buy? Contact us.
If your phone isn't compatible after your purchase, we refund you in full. Check your model before ordering in our compatible device database.
“Satisfaction guaranteed” isn't a slogan: our refund policy is published and readable before you buy, just like our terms of sale. See the FAQ.
Buy without an account, guided step-by-step installation. And you have 180 days to activate your eSIM after purchase — order as soon as your trip is booked.
You've certainly come across it: a little white ball wearing the red disc of the Japanese flag — the hinomaru, literally “circle of the sun”. It's our mascot, and it stands for what we want to be: simple, round, straightforward.
You'll find it everywhere we are: on the site, in the free Japan guide included with every eSIM, in our emails and on our social media. It checks your compatibility, scans your QR code, turns on your tethering — a visual companion that follows you from order to activation.
4.9/5 from 1,500+ verified customer reviews, collected on our sites and review platforms. Every review is collected after a verified purchase — here are three, reproduced as written.
Isabelle TardieuFrance — verified purchase
✓ Verified
I hesitated for a long time, there are so many eSIM options for Japan! I went for the 15-day unlimited plan: everything was perfect, both for Google Maps and for social media. I'd do it again without hesitation, thank you so much.
Very happy. When I arrived in Tokyo, my own mistake meant I couldn't activate my eSIM. I contacted PlanJapan on WhatsApp: quick, efficient reply. Thank you so much. No hesitation in recommending them.
Romain C.France — verified purchase
✓ Verified
Trip in April 2026: easy to use, no network problems, very happy. One of the 2 eSIMs wasn't compatible with my daughter's phone: refunded within days. Great. PlanJapan offers some of the best value for money.
Yes, and you can check for yourself: PlanJapan is published by Artixia, a registered French company (SIRET 940 112 949 00018), rated 4.9/5 from 1,500+ verified reviews, with a refunded compatibility guarantee and a satisfaction-guaranteed policy both published in black and white.
A French sole proprietorship, Artixia, registered under company number 940 112 949 00018 and based in Cormeilles-en-Parisis (Val-d'Oise). The full identity of the publisher and the host is set out in our legal notice.
On our reviews page, which brings together 1,500+ verified customer reviews, collected on our sites and review platforms, for a 4.9/5 rating. Every review is collected after a verified purchase.
Prepaid data-only eSIMs for Japan: a data eSIM with 10, 20 or 50 GB valid for 30 days, an unlimited eSIM from 10 to 30 days (from €29.99) and a 50 GB/month subscription at €34.99 with no commitment. No physical SIM and no Japanese number: you keep your usual number as a dual SIM and your calls go through WhatsApp, iMessage or FaceTime.
Check your model before buying in our compatible device database. And if your phone isn't compatible after your purchase, we refund you in full: that's our compatibility guarantee.
Can't find your answer?Our support team replies within minutes on WhatsApp and by email — 7 days a week, weekends included.
💬 Contact usNTT docomo network, genuinely unlimited data, guide + map free and support 7 days a week — the Japan eSIM specialist, activated in 2 minutes.
Choose my plan →Satisfaction guaranteed · −5% from 2 eSIMs, −10% from 3