eSIM Japan 5G Unlimited Max Data

$11.99$45.99

• Unlimited 5G/4G LTE at Max Speed Data
• Connect to #1 Japan network, KDDI.
• Get your QR code and activate it instantly.
*5G is available in compatible phones in 5G coverage zones.
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Powered by KDDI

KDDI, a major Japanese telecom with 70 years of history, won the Download Speed Experience award from OpenSignal, surpassing three other carriers including NTT Docomo and Softbank.

Powered by KDDI

KDDI, a major Japanese telecom with 70 years of history, won the Download Speed Experience award from OpenSignal, surpassing three other carriers including NTT Docomo and Softbank.

KDDI 5G Network provides

Non-stop internet

KDDI 5G Network provides

Non-stop internet

Lightning-fast 5G speeds with no slowdowns
Same top quality network used by locals
The best price per GB you’ll find

As this plan connects directly to KDDI's local towers, it ensures low latency. The download ping is only 42ms, which is an excellent score. You can also experience download speeds of up to 600Mbps in 5G mode.

Better deals than Airports

Better deals than Airports

Do you still buy eSIM after you land in Airport ?
Get online in just 5 minutes and be ready ahead of time.

Do you still buy eSIM after you land in Airport ?
Get online in just 5 minutes and be ready ahead of time.

*This is the actual price at Narita Airport.

*This is the actual price at Narita Airport.

Choose your best option

Choose your best option

Plan details:

Unlimited Internet without speed restriction

Data-only plans, not including local phone numbers.

A day is counted at 00:00 based on Japanese time.
For example, if you activate the eSIM at 23:00 and it reaches 00:00, it is counted as one day.

Vaildity days Price
3 days 15.99 $11.99
4 days 21.32 $15.99
5 days 26.65 $19.99
6 days 31.99 $23.99
7 days 37.32 $27.99
Vaildity days Price
8 days 39.99 $29.99
9 days 42.65 $31.99
10 days 45.32 $33.99
11 days 50.65 $37.99
Vaildity days Price
12 days 53.32 $39.99
13 days 55.99 $41.99
14 days 58.65 $43.99
15 days 61.32 $45.99

All our plans include
these benefits

Unlimited
at
Max Speed
Nationwide
Coverage
Free Mobile
Hotspot
Free au
WiFi Zone

Things to know

Check Compatibility

Before ordering, ensure your device is carrier-unlocked and compatible.

    • Click here for a guide to check if your phone is locked.
    • Check our list of compatible models by clicking here. To briefly check compatibility, dial *#06# on your device and check that your IMEI or MEID is displayed.
Mobile Hotspot

The mobile hotspot data allowance varies depending on the date option. Please refer to the details below.

*Mobile Hotspot Data
3, 4 Days: 3GB / 5, 6, 7 Days: 6GB /
8, 9, 10 Days: 9GB / 11, 12, 13, 14, 15 Days: 15GB

Activation Point

Data plan will start as soon as you connect to local network. You can scan the QR code and install the eSIM in advance. As this plan is directly provided by a Japanese Carrier(au by KDDI), there’s no need to toggle on [Data Roaming].

5G Connectivity

5G is available in compatible phones in 5G coverage zones. 5G coverage may vary depending on regional circumstances. Refunds due to lack of 5G support will not be accepted.

Unable to Reinstall or Transfer

Removing the eSIM will delete the data plan from your phone. You can’t install the eSIM again. Please do not remove your eSIM by tapping [Remove Cellular Plan] button while in use.

To get in touch with us, ask eSIM World Team anytime via [email protected].

Unlimited data is enough for travelers to do everything

Translate a text on Google Translate
Watch videos on Youtube
Search routes on Google Maps
Send a text message on WhatsApp
Call a taxi from Uber

Our Local Network covers 99% of the time in Japan

ESIMJAPAN.COM offers reliable service on the KDDI’s network. You’ll enjoy 4G LTE speed almost everywhere you travel in Japan.
 Tokyo
 Fukuoka
 Sapporo
 Nagoya
 Hiroshima

150,000+ Travelers like you already used our eSIM

Join them now!
We have helped thousands of customers get hassle-free connectivity. Experience the easiest way to stay connected.

What you can expect

High-speed data

Experience the reliable
4G LTE local network.

Instant connectivity

Get mobile data connection
in just a couple of minutes.

Keep number

Keep your current number
and use data with our eSIM.

Near-local rate

Goodbye to expensive roaming fees. No hidden fee.

High-speed data

Experience the reliable 4G LTE local network.

Instant connectivity

Get mobile data connection in just a couple of minutes.

Keep number

Keep your current number and use data with our eSIM.

Near-local rate

Goodbye to expensive roaming fees. No hidden fee.

How it works

Get eSIM at your fingertips, Get ready for your trip!
Step 1

Pick a plan

Choose the plan that suits your travel needs and place an order.

Step 2

Scan the QR code

Receive the QR code via email and instantly scan it to activate.

Step 3

Ready to go!

Have a light and enjoyable trip without any data concerns.

Our Promise
24/7 Personalized Support

No matter when you reach out—whether it's 2 PM or 2 AM— our dedicated customer support team is ready to help you. Get practical and helpful solutions from skilled human experts.

Frequently asked questions

Can I use Nationwide eSIM Plans everywhere in Japan?

Yes, eSIM Japan 5G Unlimited Max Data plans work everywhere in Japan. We select and offer the best data plans which provide the best nationwide coverage.

Should I order and activate an eSIM before traveling?

You can purchase an eSIM at your convenience, either one day before your travel date or upon arrival at your destination.
Additionally, please note that to install the eSIM, your device must be connected to a Wi-Fi or a cellular data network.

Does eSIM Japan 5G Unlimited Max Data truly offer Unlimited Data?

Yes, there is no speed cap. However, excessively high mobile data usage may result in carrier penalties without prior notice. Please note that no refunds, cancellations, or returns will be accepted.

Is 5G network available in all areas of Japan?

5G is available in compatible phones in 5G coverage zones. 5G coverage may vary depending on regional circumstances. Refunds, cancellations, or returns, due to lack of 5G support are not possible.

Are voice calls and SMS available with the eSIM plan?

You cannot make phone calls or use SMS with this eSIM plan.
eSIM Japan 5G Unlimited Max Data plans are data-only and do not include a local mobile number.

Where can I use Free au WiFi?

Please check the au WiFi Zone here: https://au.wi2.ne.jp/area/.
Common au Free WiFi Zone: Starbucks, Doutor, KFC, Subway, Don Quijote, Big Camera

After my eSIM plan expires, can I extend it?

Please note that we do not offer a top-up service for eSIM Japan 5G Unlimited Max plans. Instead, we recommend purchasing a new eSIM plan and installing it on your device again.

Are there any inaccessible mobile apps when using the eSIM plan?

You are free to use all mobile apps without any restrictions.

How can I get support from eSIM World Team?

To get in touch with us, ask eSIM World Team anytime via [email protected].

Customer Reviews

Customer Reviews

Based on 255 reviews
93%
(236)
5%
(13)
1%
(2)
0%
(1)
1%
(3)
G
Guadalupe O.
10/10

Been in Japan for a few days now and I haven’t had any problems with service. Buying this eSIM has also been cheaper than my phones international plan. Will be switching to eSims for all my future travels.

Thank you so much for your feedback, Guadalupe!
We’re thrilled to hear that your eSIM has been working smoothly during your time in Japan and that it’s more affordable than your international phone plan.
It’s great to know that you’ll be using eSIMs for future travels.
We’re committed to making your experience as seamless and cost-effective as possible.
We look forward to supporting you on your upcoming adventures!

J
Jungheuk Park

I enjoyed Thanks

A
Anonymous
Very good speed, was able to connect to 5G with US phone, highly recommended

Great

Thank you for taking the time to leave a review, Rodney!
We're thrilled to hear that you had a great experience with our eSIM Japan 5G Unlimited Max Data.
We pride ourselves on providing fast speeds and seamless connectivity, even with US phones.
Thank you for recommending us, and we hope to continue providing you with top-notch service.
Have a great day!

F
Fluture Radu Adrian

Very good experience

Thank you so much for your positive feedback, Fluture!
We are glad to hear that you had a great experience with our eSIM Japan 5G Unlimited Max Data product.
Our team always strives to provide the best service possible.
Thank you for choosing us!

S
Stephanie

seamless from start to end, and I heavily relied on my phone so this was crucial! excellent!

Thank you for your kind words and for choosing our eSIM Japan 5G Unlimited Max Data, Stephanie.
We are thrilled to hear that our service was seamless and met your needs.
We understand the importance of reliable phone service and are happy to have provided that for you.
Thank you for your support and have a great day!