Best seller
Unlimited eSIM Japan — 1
Unlimited eSIM Japan — 2
Unlimited eSIM Japan — 3
Unlimited eSIM Japan — 4
Unlimited eSIM Japan — 5
Unlimited eSIM Japan — 6
Unlimited eSIM Japan — 7
Unlimited eSIM Japan — 8
Unlimited eSIM Japan — 9
4.9/5 — 1,500+ verified reviews

Unlimited eSIM Japan

  • No daily limit
  • No speed throttling
  • Hotspot included

Trip length

Select your number of days

Staying more than 30 days?

How many travelers are you?

Select one eSIM per person

1 eSIM

  • No daily limit
  • No speed throttling
  • Hotspot included

∞ 15 days · 1 eSIM

Total $55.99
QR code by email in 2 min Activates automatically in Japan Refunded if unused Support 7 days a week
VisaMastercardAmerican ExpressCartes BancairesApple PayPayPalKlarna 🔒 Secure payment
Japan eSIM SubscriptionExpat or long stay? 50 GB reset every month — $41.99/month See the subscription →
Verified reviews

Excellent. 4.9 out of 5.

4,9 1,500+ verified customer reviewsand 50,000+ eSIMs sold since 2023
Unlimited, for real

Unlimited. No asterisk.

Most “unlimited” eSIMs throttle you after 2 or 3 GB a day. Ours doesn't: your data stays unlimited and at full speed, from the first day of your trip to the last.

No daily limitNo 2 or 3 GB daily cap. Watch, stream and browse as much as you like.
No speed throttlingNTT docomo 4G/5G at full speed for the entire length of your plan.
Hotspot includedConnect your laptop, your tablet or a travel companion's phone.

What the others call “unlimited”

  • PlanJapan PlanJapan Unlimited, no daily cap, no throttling
  • Airalo Airalo 3 GB/day, then throttled to 1 Mbps
  • Holafly Holafly Fair use policy, threshold not published
  • Ubigi Ubigi 60 GB over 30 days, then throttled to 2 Mbps

Specifications checked in September 2026 on each brand's official pages. Offers may change.

Before you buy

Is your phone compatible?

Check in 10 seconds — and if your phone turns out not to be compatible, we refund you in full, as long as the eSIM has not been installed.

See the full list of 500+ compatible devices
Why PlanJapan

What other eSIMs don’t do.

A real Japanese IP

Your data stays in Japan.

PlanJapan IP
You Japan Internet
100+ MbpsTikTok, ChatGPT
AiraloHolaflySailyUbigi Others IP
You Hong Kong, China Internet
5–10 MbpsTikTok, ChatGPT

No blocked apps

Even TikTok and ChatGPT

Truly unlimited

No daily cap, no throttling.

Today12.4 GB
Full speed
Airalo: 3 GB/day

Online as soon as you land

London Tokyo Welcome to Japan!docomo 5G · Connected

QR code in 2 minutes

By email, no app needed.

Your eSIM is ready2 min ago

Hotspot included

Japan’s #1 network

99%of Japan covered

Support in English 7/7

On WhatsApp and by email.

PlanJapan Supportonline
No signal after landing 😅 Let’s sort it out together 🙂
Easy as 1-2-3

Connected in Japan in 3 steps

No app to install, no account to create. Buy today, activate on departure day.

1

Choose your plan

Unlimited for the exact length of your trip, or 10/20/50 GB. Pay in 30 seconds, no account needed.

Japan unlimited — 15 daysUnlimited data · hotspot included ✓
Japan 20 GBvalid 30 days ›
2

Scan the QR code from your email

Your eSIM arrives 2 minutes after purchase. We guide you step by step, screenshot by screenshot.

PlanJapanYour Japan eSIM is ready 🎌 2 min ago
Scan with your cameraSettings → Cellular → Add eSIM
Install my eSIM
3

Enjoy from the moment you land

The eSIM activates automatically in Japan. Track your usage in real time, top up if needed.

Japan unlimited∞ / ∞ GB — Expires in 12 days ● Active
Japan 20 GB17 / 20 GB left ● Active
Included with every eSIM

We give you
the perfect trip.

$35.98 $0.00 Free
Japan Guide — 14 days70+ pages: itinerary, hotels, restaurants, custom GPT $23.99FREE
Google Maps list — 200+ spotsTokyo, Kyoto, Osaka… sorted by category, ready to use $11.99FREE

Added automatically to your order. Sent by email with your eSIM, 2 minutes after purchase.

Japan Guide — 14 days
Google Maps list — 200+ spots
They travel with us

Japan creators
use PlanJapan

Found us on TikTok or Instagram? Here are the real videos of creators testing our eSIM in Japan.

TikTok @quatre.off
TikTok @xnylina
TikTok @itsyansonn
TikTok @ureshiitourisme
TikTok @quatre.off
TikTok @shyne_spm
TikTok @kat.travelart
TikTok @nmkjapan
Compare before you buy

PlanJapan vs other eSIMs

We encourage you to compare: that's how we win. Line by line, here's why travellers choose the Japan eSIM specialist.

Feature PlanJapan PlanJapan Recommended Airalo Holafly Saily Nomad Ubigi
True unlimited, no speed throttling—~———
Daily data limitNone3 GB/dayFair usePlan-dependentPlan-dependent60 GB / 30 d
Speed once the limit is reachedFull speed1 MbpsNot publishedPlan-dependentPlan-dependent2 Mbps
TikTok & banking apps accessible—————
NTT docomo 4G/5G network~~~~
Japan guide (70+ pages) & 200+ spots map included—————
No account needed, 2-min activation—————
Support 7 days a week————
Refunded if unused~~~~~

Indicative comparison based on each brand's public Japan offers (data limits and speeds checked September 2026). ✓ = included · ~ = partial or plan-dependent · — = not offered.

Frequently asked questions

Everything you want to know
before you go

Check your phone settings for the “eSIM” or “digital SIM” option. Most recent models (iPhone, Samsung, Google Pixel, etc.) are compatible.

Right after your order you'll receive a QR code by email. Simply scan it with your phone to activate your eSIM.

Yes! You have 180 days to activate your data eSIM (60 days for the unlimited one) after purchase. Validity only starts at activation.

This eSIM offers a reliable high-speed connection in Japan thanks to one of Japan's best operators: NTT Docomo.

Yes — all popular services like TikTok, Instagram, Google Maps, YouTube, WhatsApp and all your apps are available without restriction.

Yes, that's the best way to do it! You'll enjoy internet from the moment your plane lands in Japan. The 30-day period only starts once you're there.

Enter your arrival and departure dates in the calendar: beyond 30 days, your trip is covered by several eSIMs that take over from one another (for example 30 + 8 days for a 38-day trip). You get a single email leading to a page with all your eSIMs and each one's date: the first one is activated when you arrive, the next one the day after the previous one ends. Install them all before you leave and keep the next ones switched off until their date.

One eSIM per phone: just set the number of travelers. For a trip longer than 30 days, each person gets their own set of eSIMs — two people for 38 days means 4 eSIMs, 2 each. The discount applies automatically: −5% from 2 eSIMs, −10% from 3.

Get our best Japan tips 🎌 1 email a month: itineraries, hidden gems, eSIM deals. Zero spam.
4.9/5 — 1,500+ reviews

Your Japan starts here.

Buy now, activate on departure day. QR code by email in 2 minutes, guide + map included, support 7 days a week.