Top Seller
.png)
Top Seller
Buy an eSIM for Japan and unlock fast internet at 4G / 5G speeds!
It only takes 3 minutes to activate a Sim Local eSIM. Download your plan instantly with one click or scan the QR code to get connected, just like home!
Coverage
Japan
When you purchase this plan
❗Please Note: To get the most out of this eSIM, purchase it right before takeoff or when you arrive.
Features
Plan type: Unlimited data
Days of use: 7 days
Data: Unlimited
Local phone number: No
Calls & texts: VoIP only (Skype, FaceTime, WhatsApp, etc.)
Hotspot: Yes (up to 3 GB for duration of the plan)
Network: au by KDDI
Coverage: This plan is data only and runs on the KDDI network in Japan. Coverage is excellent across major cities like Tokyo, Osaka, Kyoto, and Sapporo. In more remote areas such as rural Hokkaido or mountain regions, signal strength may vary slightly.
Fair Usage Policy
This plan is subject to KDDIs fair usage policy. This plan is designed for personal use, the network has the right to slow data speed or cancel connection should usage be exceeded.
Please see: Operator Terms & Conditions
An eSIM is a digital SIM that simplifies staying connected while traveling abroad, eliminating the need to swap physical SIM cards. More importantly, it means you can avoid expensive roaming charges. Simply download a plan and connect in a few taps!
Most smartphones today support eSIM technology, but there are still a few models that do not. Easily check if your smartphone or tablet is eSIM-compatible using our compatibility checker.
Sim Local connects you to trusted local networks in 150+ countries. With a plan from a local provider, you can ditch slow and expensive roaming products and unlock the fastest possible internet speeds.
The fastest way to install an eSIM is through the Sim Local app. Download a plan and get online in a couple of minutes!
Getting an eSIM is super easy! Simply purchase a plan online and follow guided instructions in the app (or email sent to your inbox).
You can have multiple active plans (usually up to 10) on your phone and instantly switch between as you travel from country to country. Some devices will limit the number of eSIMs you can store on your phone, so you may need to remove an old eSIM to activate a new one.
© 2026 Sim Local (IRELAND) Ltd. All Rights Reserved.