Japan Unlimited Data eSIM - 18 Days

Unlimited high-speed data in Japan with 17GB hotspot tethering included

Stay connected anywhere in Japan with the Japan Unlimited Data eSIM - 18 Days, designed for travellers who want reliable, fast internet without worrying about roaming charges, SIM card collection, or running out of data.

Powered by Japan's premium KDDI network, this travel eSIM provides unlimited data at maximum available speeds, allowing you to use maps, social media, messaging apps, travel bookings, video streaming, and remote work applications throughout your trip.

Whether you're exploring Tokyo, Osaka, Kyoto, Nara, Hiroshima, Sapporo, Hakone, Mount Fuji, Okinawa, or travelling across multiple cities, this eSIM delivers dependable coverage and high-speed connectivity from arrival to departure.

For travellers searching for the best Japan eSIM, unlimited data eSIM Japan, Japan tourist eSIM with hotspot, or 18-day Japan travel eSIM, this plan offers one of the most convenient ways to stay online during your trip.

Key Features

Why Travellers Choose This Japan eSIM

1. Unlimited Data for the Entire Trip

Enjoy unlimited internet access throughout your 18-day stay without worrying about exhausting your allowance.

Perfect for:

• Google Maps and navigation
• WhatsApp, LINE, and messaging apps
• Social media updates
• Travel planning
• Restaurant and attraction bookings
• Video streaming
• Online shopping
• Video calls

2. No Daily Data Restrictions

Many travel eSIMs impose daily limits that reduce speeds after a certain amount of usage.

This plan provides unlimited data with no daily cap, allowing you to use your connection freely throughout the day.

3. Access to the KDDI Network

Connect directly to one of Japan's leading mobile networks with excellent coverage across major cities, tourist attractions, train routes, airports, and regional destinations.

4. Fast Speeds up to 1Gbps

Experience premium network performance for:

• Streaming HD and 4K content
• Uploading photos and videos
• Remote working
• Cloud applications
• Mobile hotspot use
• Video conferencing

5. 17GB Mobile Hotspot Included

Share your internet connection with other devices during your trip.

Suitable for:

• Laptops
• Tablets
• Secondary smartphones
• Travel companions

6. Instant QR Code Delivery

No need to visit a mobile shop or wait for a physical SIM card.

Simply:

1. Purchase online
2. Receive your QR code by email
3. Install the eSIM before departure or upon arrival
4. Connect to the KDDI network
5. Start using unlimited data

7. Purchase Before You Travel

The activation QR code remains valid for 180 days, allowing you to buy your eSIM well in advance of your trip to Japan.

Supported Country

Japan

Device Compatibility

Compatible with unlocked eSIM-enabled devices, including:

Apple: iPhone 11, iPhone 12 Series, iPhone 13 Series, iPhone 14 Series, iPhone 15 Series, iPhone 16 Series and newer supported models.

Samsung: Galaxy S20 Series, S21 Series, S22 Series, S23 Series, S24 Series, S25 Series, Galaxy Fold and Flip devices with eSIM support.

Google: Pixel 4 and newer supported Pixel devices.

Other Brands: Selected Motorola, Oppo, Sony, Xiaomi, Honor and other eSIM-compatible smartphones.

Please ensure your device supports eSIM technology and is carrier unlocked before purchasing.

How to Activate

1. Purchase the Japan Unlimited Data eSIM.
2. Receive your QR code by email.
3. Open the eSIM settings on your device.
4. Scan the QR code.
5. Install the eSIM profile.
6. Travel to Japan.
7. Connect automatically to the KDDI network.
8. Start using unlimited data.

Frequently Asked Questions

1. How much data is included?

This plan includes unlimited data for the entire 18-day validity period.

2. Is there a daily data limit?

No. There are no daily data caps or daily usage restrictions.

3. Which network does the eSIM use?

The eSIM operates on the KDDI network in Japan.

4. Can I use hotspot or tethering?

Yes. The plan includes 17GB of hotspot tethering.

5. Does this eSIM work throughout Japan?

Yes. Coverage is available across Japan where KDDI network service is supported, including major cities, tourist destinations, and transport routes.

6. Does the eSIM include a Japanese phone number?

No. This is a data-only eSIM and does not include local calls, SMS messages, or a Japanese phone number.

7. When does the validity period begin?

The 18-day validity period begins when the eSIM first connects to a supported network in Japan.

8. How long is the QR code valid?

Your activation QR code remains valid for 180 days from the date of purchase.