Japan eSIM Recommendation｜2025 Unlimited Data & Instant Activation

Get online in one minute with your Japan eSIM
Scan to install — no SIM card swap required
Stable connection with full coverage across Japan

Powered by Japan's Largest Carrier: NTT DOCOMO
eSIM will be delivered instantly to your LINE for quick setup

Japan Travel eSIM – Popular Data Plans

Plan Name	[eSIM] Unlimited Japan Data｜Flexible Validity Options
Key Features	eSIM designed for travelers in Japan — install and connect anytime No SIM ejector tool needed — scan the QR code to activate high-speed internet Quick setup with a simple scan — be online in just one minute Flexible duration: from 1 to 30 days — perfect for both tourism and business Suitable for solo travel or guided tours — pick a plan that fits your data usage For limited-speed plans, data resets daily at 00:00 (Japan time) Unlimited full-speed plan ideal for navigation, streaming, and power users NTT DOCOMO network ensures fast and reliable coverage across all of Japan For phones that do not support eSIM, check our Japan SIM Card Plans
Hotspot Sharing	Supports mobile hotspot sharing
Setup Method	Simply scan the QR code to complete installation and start using the internet See the eSIM setup overview
Supported Devices	Apple Supported Models: iPhone 17／16／15／14／13／12／11、XS、XR、SE2、Air iPhones from Mainland China, Hong Kong, and Macau: Only XS, SE, 12 mini, 13 mini support eSIM Google Pixel Models: Pixel Fold, Pixel 9/8/7/6/5/4 Series OPPO Supported Models: Find N3, Find N3 Flip, Find X5 See Full List of eSIM-Compatible Devices
Coverage Area	Nationwide coverage across Japan, including Hokkaido, Okinawa, and major remote islands
Important Notes	Before purchasing, confirm your phone supports eSIM for smooth installation Ensure your Email is correct to receive the QR code eSIM is a customized item and is non-refundable once ordered The plan does not activate on your selected date — it starts upon detection of Japan's network, counted by Japan time (01:00 as one full day)

Japan eSIM Installation Overview

3 simple steps: Scan the QR Code → Select “OKsim” as mobile data → Setup complete, get online instantly

Japan eSIM – Frequently Asked Questions

Which mobile network is best in Japan?

The top three Japanese telecoms are NTT DOCOMO, SOFTBANK, and KDDI (AU). This eSIM uses Japan’s No.1 network — NTT DOCOMO — known for its broadest coverage and most stable connection, trusted by locals and travelers alike.

What is an eSIM? How is it different from a physical SIM card?

eSIM (Embedded SIM) is a digital SIM that you can activate by scanning a QR code. No physical card is required. As long as your phone supports eSIM, you can use it in Japan without shipping or swapping cards. iPhones (11 and above) and Pixel phones are supported. If your device doesn't support eSIM, consider our physical SIM options.

Can I install the Japan eSIM before traveling? Will it activate early?

Yes, you can install it beforehand. It will not activate until you arrive in Japan and connect to the local network. Validity begins based on Japan time (01:00 counts as one full day).

How soon will I receive the Japan eSIM QR code?

The QR code is sent instantly to your Email or LINE after the order is completed. If you don't see it, check your spam folder or contact customer support.

Does this eSIM include voice or SMS services?

No. This eSIM is data-only. You can still use your original phone number for calls and SMS as usual, without extra setup.

Can I share my internet using this eSIM?

Yes, hotspot sharing is supported. You can share the connection with laptops, tablets, or other phones. Performance may vary based on your device and signal strength.

Is this eSIM usable in Hokkaido, Mt. Fuji, Okinawa, or remote islands?

Yes. With NTT DOCOMO’s wide coverage, you can enjoy stable internet access throughout Japan, including all major tourist areas and islands.

Can I still use this eSIM if I buy it right before departure?

Yes. This eSIM is designed for last-minute travel. After purchase, the QR code is sent immediately. Just scan and go — no waiting required.