ChildrenSame price as an adult · 3 GB recommended (Light use)
3. Your plan
Price per eSIM
Other data amountsfrom 1 GB to 100 GB
Each phone must support eSIM; this check does not block your purchase.
Final price−10% from 3 eSIMs
From €3.60, all included
per traveller (Unlimited · 1 day), no fees added at checkout
Your order
Japan · 7 days · 1 eSIM
1 eSIM · 5 GB7 days · €9.00 per eSIM€9.00
Family discount: −10% from 3 eSIMs
FeesIncluded
Total to pay€9.00
that's €9.00 per person
Bank cardApple PayGoogle Pay
Installation link received usually in under 2 minutes
The plan starts the first time you connect at your destination
Payment secured by Stripe: your card details never pass through Sirocco
Total · 1 eSIM€9.00family discount from 3 eSIMs
Before you pay
eSIM Japan: the essentials
Each traveller has their own eSIM and their own plan. Here is how it works, in short.
eSIM Japan · from €3.60
Networks
NTT Docomo, SoftBank, KDDI, and Rakuten, on 4G and 5G (depending on the plan, details below)
Use
Data only: no Japanese number. WhatsApp, FaceTime and other calling apps work over your data.
Plan start
Your plan starts the first time the eSIM Japan connects on arrival. Install the eSIM before you leave, on Wi-Fi. To be activated within 90 days of purchase.
Unlimited
1 GB a day at full speed, reset every 24 hours from activation. Then reduced to 512 kbit/s. An unlimited plan cannot be topped up.
GB plans
Can be topped up from the trip dashboard, with no reinstalling: only the eSIM of the traveller concerned is topped up.
The online diagnostic checks your eSIM with the operator and gives you the fix. If the fault lies with the network, we send you a new eSIM, free of charge.
Support
Replies 7 days a week from an automated assistant, in your language, usually within minutes; the team takes over Monday to Friday, from 9 am to 6 pm (Paris time).
Choose my eSIMsThe group price appears straight away, discount included.
Free · 20-page PDF guide
Japan with the family
Documents, money, health, emergency numbers
Our places: restaurants, outings, with phone numbers and GPS directions
Itineraries, useful words, a page to print
Catalogue prices
eSIM Japan plans and prices
One eSIM per traveller, one price per traveller. The configurator shows the group price straight away, discount included.
From
€3.60
per traveller, before group discount
7 days trip
from €7.10
unlimited at €23.20
Group discount
−10%
from 3 eSIMs, shown before you pay
The choices offered at checkout, by trip length
Exactly the configurator's choices, for each length sold. Prices per traveller.
eSIM Japan: choices offered by trip length, price per traveller
Trip length
Light useMessages, maps, email
Regular use+ social media, photos
Heavy use+ video, video calls
UnlimitedNo counting, for the whole trip
1 day
—
1 GB · €3.80
—
€3.60
3 days
1 GB · €3.80
3 GB · €6.60
5 GB · €9.00Valid for 5 days
€10.40
5 days
—
3 GB · €7.10
7 GB · €12.20Valid for 7 days
€15.20
7 days
3 GB · €7.10
5 GB · €9.00
10 GB · €15.20
€23.20
10 days
3 GB · €7.10Valid for 15 days
7 GB · €12.50Valid for 15 days
12 GB · €17.60Valid for 15 days
€42.20Valid for 15 days
15 days
5 GB · €9.50
10 GB · €15.60
20 GB · €21.80Valid for 30 days
€42.20
30 days
10 GB · €16.10
20 GB · €21.80
—
€60.30
90 days
50 GB · €74.10
—
100 GB · €125.40Valid for 180 days
—
180 days
—
—
100 GB · €125.40
—
Unlimited. 1 GB a day at full speed, reset every 24 hours from activation. Then reduced to 512 kbit/s. “—”: choice not offered for this length. For your exact dates, the configurator picks the plans that cover the whole trip.
Example: 4 travellers, 7 days, Regular use · 5 GB
4 × €9.00 · Group discount −10% (−€3.60) · that is €8.10 per person
Possible networks, depending on the plan and availability: the Japan eSIM connects to one of these local operators via roaming.
Japan eSIM: mobile networks by plan
Plans
Operators
Network
GB plans
NTT Docomo, Rakuten Mobile, KDDI/au, SoftBank, KDDI, and Rakuten
4G5G
Unlimited plans
NTT Docomo, Rakuten Mobile, KDDI/au, and SoftBank
4G5G
5G depends on local coverage and on whether your phone supports it.
Good to know
Facebook
depending on the plan, the app may not be available.
TikTok
depending on the plan, the app may not be available.
As a family or a group
One purchase, one eSIM per person.
1
Search as a group
Destination, dates and number of travellers. The group price shows straight away.
2
Confirm each phone
You confirm that each phone accepts eSIMs. A guide shows you how to check in 30 seconds.
3
Pay once
Total, price per person and discount shown before you pay.
4
Everyone installs their own
A personal link for each traveller, a step-by-step guide, a QR code as a backup.
Send each traveller their eSIM
Enter each traveller's number: they receive a personal link by SMS to install their eSIM.
No number? Send the link by e-mail or share it yourself.
Sent
Opened
Installed
Connected
Someone has run out of data?
You top up their eSIM from the trip dashboard, with no reinstallation and without affecting the others. Data used up: the connection stops and nothing extra is charged.
Child mode
When you order, choose the Child profile for a traveller.
Choose my eSIMsThe group price appears straight away, discount included.
Getting set up
Install before you leave, switch on when you land
Before you leave, on Wi-Fi: open your personal link and follow the guide (iPhone or Android). Do not delete the eSIM afterwards: it cannot always be reinstalled.
When you arrive: turn on data roaming for the Sirocco line only.
Your usual line stays active for calls and texts, at your operator's rates.
Comparison between the Sirocco eSIM, your operator's data roaming and a SIM card bought locally
Sirocco eSIM
Your operator's data roaming
SIM card bought locally
Installation
before you leave
nothing to install
on arrival
Price
shown before you pay
depends on your plan: check with your operator
depends on the seller
Your usual number
stays active alongside
yes
card removed from the phone, unless dual SIM
For a group
one purchase, one eSIM per person, everyone's progress visible
each person sorts it out with their operator
each person buys their own
Choose my eSIMsThe group price appears straight away, discount included.
Practical guide
Japan is easy to enjoy with children once a few things are sorted: passports, an adapter and some cash for smaller restaurants. Here is what British and American families need to know, from official sources, cited and dated.
Entry requirements for Japan
British citizens
Your passport must be valid for the whole of your stay; no extra validity is required. Keep a blank page free for the visa stamp.1
British citizens get a visa on arrival for tourism for up to 90 days, with no need to apply beforehand. To stay longer, you can apply at an immigration office for an extension of another 90 days.1
Never travel on a passport you have reported lost or stolen: you will be refused entry.1
Leave sausages, bacon and ham at home: bringing meat products into Japan without permission from the Animal Quarantine Service is illegal.1
Under UK law, you need the permission of everyone with parental responsibility before taking a child abroad. A letter from them, with their contact details and the details of the trip, is usually enough.2
You might be asked for that letter at a UK or foreign border. A birth or adoption certificate helps to show your relationship, and a single parent whose family name differs from the child's should also carry a divorce or marriage certificate.2
Checked on 11 October 2026. Source: GOV.UK. Rules can change: check them again before you travel.
U.S. citizens
For visa-free tourist stays of up to 90 days, your passport must be valid for the entire stay, and you should have proof of a return or onward ticket.3
All visitors give fingerprints and have their photo taken on arrival, but minors are exempt.3
A passport you have reported lost or stolen cannot be used, even if you find it later: get a new one before you travel.3
Once in Japan, always carry your passport with you.4
Checked on 11 October 2026. Source: U.S. Department of State. Rules can change: check them again before you travel.
Travelling on another passport, such as Irish, Canadian or Australian? The rules may differ: check with your own government before you go.
Health and insurance
No vaccinations are compulsory for entry to Japan, according to the German and Italian foreign ministries. At least 8 weeks before you travel, check the latest health advice for Japan and ask your doctor what the family needs.567
Medical care in Japan is of a high quality but expensive, and you should expect to pay the whole cost of treatment. Check that your travel insurance covers local treatment and medical evacuation.7
U.S. Medicare and Medicaid do not work overseas, and most hospitals do not accept U.S. health insurance. The State Department strongly recommends supplemental insurance that covers medical evacuation.8
Japan's national tourism organisation strongly recommends travel insurance for every visitor, and it can also be bought after you arrive.9
Some everyday medicines are banned in Japan, including Vicks inhalers and cold and flu remedies containing pseudoephedrine. Check any medication with the Japanese Embassy, and carry it in its original packaging with the prescription.78
Money and payments
The currency is the yen (JPY), and Japan is still largely a cash society, so keep some cash on you. All major airports have exchange counters in their arrivals halls.10
International credit, debit and prepaid cards are generally accepted, but not always for short train or subway journeys.11
You may have difficulty using cards issued outside Japan. Post offices, 7-Eleven stores and Japan Post Bank have machines that accept some foreign cards during business hours.1
Withdrawals often carry a fee and not every machine is open 24 hours. Entering or leaving Japan with more than one million yen in cash requires a customs declaration.10
Plugs and electricity
The voltage is 100 volts throughout Japan, at 50 hertz in the east and 60 hertz in the west (including Nagoya, Kyoto and Osaka). Sockets take two-pin type A plugs, the kind also used in the United States, so bring an adapter if your chargers have a different plug.1213
Dual-voltage hair dryers, travel irons and shavers should work anywhere in Japan; other appliances may need a step-down transformer, sold in electronics districts such as Akihabara in Tokyo and Nipponbashi in Osaka.12
Newer shinkansen have sockets next to the window seats: ask for those seats when you buy your tickets.12
Getting around and driving
UK licence holders need the 1949 international driving permit, plus their UK licence and insurance documents, in the car. You cannot buy the permit outside the UK, and it can be used for one year.14
U.S. drivers need an international driving permit from AAA, obtained before arrival; permits issued online or by other organisations are not valid in Japan. Most short-term visitors choose not to drive.15
Traffic drives on the left, every passenger must wear a seat belt and the blood-alcohol limit is 0.03%. According to the Italian foreign ministry, child seats are compulsory up to the age of six.156
Time difference and when to go
Japan is 9 hours ahead of London, and 8 hours ahead while the UK is on British Summer Time: Japan does not change its clocks.16617
From the United States, Japan is 14 hours ahead of New York, 15 ahead of Chicago and 17 ahead of Los Angeles, and one hour less while U.S. clocks are on daylight saving time.1617
Cherry blossoms open between March and May, moving from south to north, and the rainy season begins in May to June. Summer is stiflingly hot and humid, and August and September may bring typhoons.18
Autumn leaves colour the country from late September to early December. Winter brings snow to the north and many sunny days.18
In July and August temperatures often exceed 35 degrees and heat stroke is a real risk, so keep children well hydrated.1418
Staying connected as a family
Japan's major international airports offer free Wi-Fi in their terminals, and most large city hotels have Wi-Fi. Traditional ryokan and small minshuku often do not, so check when you book.19
Free Wi-Fi in coffee chains and convenience stores usually means signing up first, and the signal can be patchy and slow.19
With one eSIM per traveller, everyone keeps their own connection, even if the family splits up in a busy station. The networks used are listed in the mobile networks section.
Install the eSIMs at home over Wi-Fi, using the installation guide, so they are ready when you land.
The Sirocco eSIM is for data only: to book a restaurant by phone, use your usual line or ask the hotel front desk.
Travelling with children
Nursing rooms are easy to find in department stores, stations and shopping centres; many have hot water, microwaves for baby food and changing mats. Baby food is sold in most convenience stores.20
Some train carriages are set aside for strollers and wheelchairs, shown by pictograms on the platform, and most major stations have lifts. Outside the big cities expect more stairs, where a baby carrier can be easier.20
Theme parks, large parks, museums, aquariums, airports and some stations lend strollers free or at low cost. When you can, avoid trains and popular sights at the busiest times.20
In a ryokan, families usually sleep on futons laid on tatami mats; Western-style beds and travel cots are not always available, so ask ahead.20
The Japan Visitor Hotline, run by the national tourism organisation, answers in English 24 hours a day on 050-3816-2787 (+81-50-3816-2787 from abroad), for accidents, illness and natural disasters.22
In the UK, the FCDO answers 24 hours a day on 020 7008 5000 if something has happened to a friend or relative abroad.21
The Sirocco eSIM cannot make calls: dial emergency numbers from your usual line.
Your questions
eSIM Japan: frequently asked questions
Questions about the eSIM
Is my phone compatible?
On the phone, dial *#06#: if an EID number appears, it accepts eSIMs. It must not be locked to a network (a phone bought with a contract). Sirocco does not check the model: you confirm each phone yourself when you order.
The eSIM activates the first time it connects to a network at your destination; the plan runs from that moment. You can install it before you leave.
Can I buy the whole family's eSIMs in one go?
Yes. You choose the destination, the dates and the number of travellers (up to 10), then a plan for each person. You pay once. Each traveller then receives their personal installation link, without creating an account. From 3 eSIMs in the same order, 10% is taken off the total, rounded in your favour. The discount is shown before payment.
Do I keep my usual number?
Yes. The Sirocco eSIM is added alongside your usual line, which stays active for calls and texts, at your operator's rates. The Sirocco eSIM is for data only: internet calling and messaging apps work with your data.
What happens when my data runs out?
The connection stops; nothing extra is charged. You can top up the eSIM concerned from the trip dashboard, on the same eSIM, with no reinstallation.
Is the unlimited plan really unlimited?
There is no data cap, but a fair use policy applies. 1 GB a day at full speed, reset every 24 hours from activation. Then reduced to 512 kbit/s.
Can I transfer an eSIM that is already installed?
No: an installed eSIM stays tied to the phone it was installed on. Before installation, the organiser can reassign an eSIM to another traveller from the trip dashboard.
Questions about the trip
Do I need a visa to visit Japan?
Not for a holiday. British citizens get a visa on arrival for tourism for up to 90 days, and U.S. citizens can make visa-free tourist stays of up to 90 days.
How long must my passport be valid for Japan?
For the whole of your stay. GOV.UK says no extra validity is required for British passports, and the U.S. State Department says your passport must be valid for the entire time you are in Japan.
Are children fingerprinted at Japanese immigration?
No. Visitors give fingerprints and have their photo taken on arrival, but minors are exempt, according to the U.S. State Department.
I am travelling alone with my children: what should I carry?
From the UK, a letter of permission from everyone else with parental responsibility, plus a birth or adoption certificate. Add a marriage or divorce certificate if your family name differs from your child's.
Are any vaccinations compulsory for Japan?
No vaccinations are compulsory for entry, according to the German foreign office. Ask your doctor about the rest at least 8 weeks before you travel.
Do I need travel insurance for Japan?
It is strongly recommended: treatment is expensive and you should expect to pay the whole cost. U.S. Medicare and Medicaid do not work overseas.
Can I pay by card in Japan?
International cards are generally accepted, but not always for short train or subway fares, and Japan is still largely cash-based. Post offices and 7-Eleven stores have cash machines that take some foreign cards.
What plug adapter do I need for Japan?
Sockets take two-pin type A plugs, as in the United States, and the voltage is 100 volts. Check that your chargers are dual-voltage.
Can I drive in Japan on my licence?
Not on its own. UK drivers need the 1949 international driving permit with their UK licence; U.S. drivers need an IDP from AAA obtained before arrival. Traffic drives on the left.
What is the time difference with Japan?
Japan is 9 hours ahead of London (8 during British Summer Time) and 14 hours ahead of New York, one hour less while U.S. clocks are on daylight saving time. Japan does not change its clocks.
When is the rainy season in Japan?
According to the national tourism organisation, the rainy season begins in May to June, and August and September may bring typhoons. Spring and autumn are comfortable times for days outdoors.
Which number should I call in an emergency in Japan?
110 for the police and 119 for an ambulance or the fire service. The Sirocco eSIM is for data only, so call from your usual line.
Can I bring sausages or ham into Japan?
No. Meat products, including sausages, bacon and ham, cannot be brought into Japan without permission from the Japanese Animal Quarantine Service.
Is free Wi-Fi easy to find in Japan?
At the major international airports, yes. Elsewhere free networks usually need a sign-up and can be slow, so an eSIM saves relying on Wi-Fi.
22Japan National Tourism Organization — Japan Visitor Hotlineread on 11 October 2026
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