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Japan eSIM

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Japan travel eSIM

eSIM Japan – 300GB Data for 15 Days

Stay connected across Japan with a 300GB high-speed data plan built for travellers.

★★★★★4.7/510,000+ traveller reviews
Data300GB
Validity15 Days
CoverageJapan
Speed4G / 5G*
£28.50

One-time payment · No recurring subscription

Instant email delivery Secure payment No physical SIM
Japan CoverageConnect across Japan
High-Speed Data4G LTE / 5G*
Instant DeliveryDigital delivery by email
No ContractOne-time purchase

Product details

Japan 300GB eSIM Plan Details

Everything you need to know about this specific Japan eSIM before you purchase.

Package Details

Data-only eSIM (No phone number)
300GB Data for 15 Days
Enjoy 15GB hotspot at no extra charge
Operates on the KDDI network
Lightning Fast 5G

Activation and Usage Restriction

Validity starts from scanning QR code.
Using the eSIM outside the supported countries or utilizing the service beyond the included bundle will deplete your allowance and may result in the service being permanently disabled or blocked.

APN

uad5gn.au-net.ne.jp

Connectivity

Japan eSIM Network & Coverage

Connect through Japan for this plan. Actual network availability can vary by location and device.

  • ✓ Japan coverage where the Japan network is available
  • ✓ 4G LTE connectivity
  • ✓ 5G where available and supported
View Japan eSIM plans →
Japan coverage map5G4G

Simple setup

How to Activate Your Japan eSIM

Install your eSIM before your trip and connect using the plan's activation instructions.

1

Buy your eSIM

Choose this plan and complete secure checkout.

2

Receive your eSIM

Your installation details are delivered digitally by email.

3

Install & connect

Follow the supplied guide and connect when your trip begins.

Read the installation guide →

Before you buy

Is Your Phone Compatible?

Your device must support eSIM and work with the network for this product.

iPhone
Samsung Galaxy
Google Pixel
Other eSIM devices

Important information

Know Before You Buy

Validity

This plan runs for 15 days. Validity starts when the eSIM is installed.

Data usage

The plan includes 300GB of data. After that allowance is used, service follows this plan's terms.

Hotspot

Hotspot is supported on this plan, within the included allowance.

Refunds & support

Digital eSIMs follow the refund policy. Contact support if the plan cannot be installed.

Choose what fits your trip

Other Japan eSIM Plans

Need more or less data? Compare other Japan plans.

Japan eSIM

100GB
30 Days
£49.50
Select Plan
CURRENT PLAN

Japan eSIM

300GB
15 Days
£28.50

Japan eSIM

1000GB
10 Days
£16.50
Select Plan

Japan eSIM

1000GB
15 Days
£20.00
Select Plan

Customer Reviews

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Why your review matters

  • Helps other travellers choose the right plan
  • Share your real experience with setup & coverage
  • Honest reviews only – no signup required

Tip: Mention data speed, ease of setup or where you used it – it really helps others!

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Product FAQs

Japan 300GB eSIM FAQs

This plan includes 300GB of data for use in Japan, subject to the plan terms and network availability.

Japan travel eSIM

Stay Connected in Japan

300GB · 15 Days · Instant Digital Delivery

£28.50

Secure payment · One-time purchase · No physical SIM

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Contact

Pentagram Systems Limited

27 Old Gloucester
St London WC1N 3AX, UK

Email: support@pentagramsystems.co.uk

Phone: +442045113780

© Pentagram Systems Limited 2026