How long does it take to set up an eSIM in Japan?

An eSIM activates instantly via QR code — your mobile data is active in minutes. A traditional SIM card takes 30-60 minutes since you must purchase it in person at a store after arriving in Japan.

Where can I buy an eSIM for Japan before I travel?

You can buy your eSIM data plan online before you travel — no roaming charges, instant QR code delivery via email. A physical SIM is only available at the airport or local stores after you arrive in Japan.

Which mobile networks does the Japan eSIM use?

Esimy's Japan eSIM connects to NTT Docomo Japan with 4G/5G mobile data coverage nationwide. A physical SIM card locks you to one carrier you have to choose at the point of sale.

How much does an eSIM for Japan cost?

Esimy offers prepaid eSIM data plans for Japan starting at 4.49€, with 5 plans available. Airport SIM card prices are typically 2-3x higher than an eSIM bought online before traveling.

Will my phone work with an eSIM in Japan?

Yes — an eSIM works on iPhone XS and newer (2018+) and most Android phones from 2018+. Check your phone settings under "Cellular" or "SIM Manager" to confirm eSIM support before buying a plan for Japan.

eSIM Japan

Stay Connected in the Land of the Rising Sun

View Plans · From 5.99€

Connected in Japan

Instant QR Code Activation Works in Tokyo, Osaka, Kyoto & More No Roaming Fees or SIM Card Swap

Best eSIM for Japan Travel with Nationwide Coverage

Exploring Japan? Whether you’re riding the bullet train to Kyoto, capturing cherry blossoms in Tokyo, or hiking Mt. Fuji, Esimy’s Japan eSIM delivers fast, reliable mobile data with no physical SIM or paperwork required.

We connect you to top Japanese networks like NTT Docomo, SoftBank, and KDDI (au) for 4G/5G coverage throughout Japan — even in rural and mountainous areas.

With instant email delivery and hotspot support, it’s the most convenient way to stay online during your Japan trip.

Instant mobile data across Tokyo, Kyoto, Osaka & beyond

4G/5G Coverage

Instant Activation

Secure Connection

Nationwide Coverage

Japan eSIM

Connected

Data Usage 2.1GB / 5GB

Japan eSIM Plans

Choose the perfect plan for your Japan adventure

1 GB

7 Days

4.49 €

1 GB Internet
Wi-Fi Hotspot Allowed
Instant Activation
Validity Starting on First Use

Buy Now

3 GB

30 Days

8.49 €

3 GB Internet
Wi-Fi Hotspot Allowed
Instant Activation
Validity Starting on First Use

Buy Now

5 GB

30 Days

11.49 €

5 GB Internet
Wi-Fi Hotspot Allowed
Instant Activation
Validity Starting on First Use

Buy Now

10 GB

30 Days

20.99 €

10 GB Internet
Wi-Fi Hotspot Allowed
Instant Activation
Validity Starting on First Use

Buy Now

20 GB

30 Days

29.99 €

GB Internet
Wi-Fi Hotspot Allowed
Instant Activation
Validity Starting on First Use

Buy Now

All plans include 4G/5G coverage across Japan • No contracts • Instant Activation

How eSimy Works?

Step I

1 GB 2 GB 3 GB 5 GB 10 GB 15 GB 20 GB

Select a Package

Choose from range of multiple countries/packages.

Step II

Scan QR Code with instructions received over your email

Easy activation with email details or our intuitive website dashboard.

Step III

Ready for travel!

Have the best trip possible without internet hassles.

eSIM vs Physical SIM Card in Japan

Compare the benefits of using an eSIM data plan versus a traditional SIM card for international travel to Japan.

Feature	eSIM (Esimy)	Physical SIM Card
Supported Networks	NTT Docomo Japan	Locked to one carrier you choose
Setup Time	Instant — scan QR code, mobile data active in minutes	30-60 min — purchase in person at a store
Device Compatibility	Works on iPhone XS+ and most Android (2018+)	Works on any unlocked phone
Availability	Buy your data plan online before you travel — no roaming charges	Airport or local store only
ID / Passport Required	No registration needed	Often required by law
Keep Your Number	Yes — runs alongside your main SIM	No — must swap SIM cards
Starting Price	From 4.49€ — 5 plans available	Varies by carrier — airport prices typically 2-3x higher
Network Coverage	4G/5G mobile data nationwide in Japan	Depends on carrier chosen
Top-up / Refill	Online from your dashboard or mobile app	Visit a store or find a top-up point
Environmental Impact	100% digital — no plastic waste	Plastic card and packaging

Supported Networks

eSIM (Esimy)

NTT Docomo Japan

Physical SIM Card

Locked to one carrier you choose

Setup Time

eSIM (Esimy)

Instant — scan QR code, mobile data active in minutes

Physical SIM Card

30-60 min — purchase in person at a store

Device Compatibility

eSIM (Esimy)

Works on iPhone XS+ and most Android (2018+)

Physical SIM Card

Works on any unlocked phone

Availability

eSIM (Esimy)

Buy your data plan online before you travel — no roaming charges

Physical SIM Card

Airport or local store only

ID / Passport Required

eSIM (Esimy)

No registration needed

Physical SIM Card

Often required by law

Keep Your Number

eSIM (Esimy)

Yes — runs alongside your main SIM

Physical SIM Card

No — must swap SIM cards

Starting Price

eSIM (Esimy)

From 4.49€ — 5 plans available

Physical SIM Card

Varies by carrier — airport prices typically 2-3x higher

Network Coverage

eSIM (Esimy)

4G/5G mobile data nationwide in Japan

Physical SIM Card

Depends on carrier chosen

Top-up / Refill

eSIM (Esimy)

Online from your dashboard or mobile app

Physical SIM Card

Visit a store or find a top-up point

Environmental Impact

eSIM (Esimy)

100% digital — no plastic waste

Physical SIM Card

Plastic card and packaging

View Japan eSIM Plans

Japan Travel & Connectivity Guide

Coverage

Tokyo, Osaka, Kyoto, Hiroshima, Fukuoka, Sapporo, Okinawa — plus full access in rural towns and along bullet train routes.

Best Networks

Enjoy superior speeds on NTT Docomo, KDDI (au), and SoftBank, Japan’s top-tier carriers.

Data Usage Tips

1–3 GB for short stays, 5–10 GB for travel and social use, 20 GB+ for long trips or remote work.

eSIM FAQs

Common questions about using eSIM in Japan

Do I need to present my identity when purchasing the eSIM to be activated?

No, the eSIM is activated exclusively online and it is KYC Free instantaneous activation with your name, surname, email, address and phone number, so there is no requirement of Identity.