WG Japan eSIM eSIM – Review & Full Test 2026

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Countries covered

1 countries

💶

Starting at

1,86 €

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Network

4G/LTE

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Data

500 MB – 100GB

❌

Calls/SMS

No

Service dedicated only to Japan, ideal for tourist or business stays in the country.

Range of data plans from 500MB to 100GB, with durations from 2 to 31 days.

Exclusively data-only plans, without local number or calls or SMS included.

Option to choose a plan with daily high-speed data then reduced speed beyond the quota.

Purchase and activation entirely online, convenient before departure or upon arrival in Japan.

Support announced available 24/7 to assist travelers in case of issues.

Destinations & coverage

By region

Key points

✅

Advantages

  • ✓ Wide choice of data volumes (from 500MB to 100GB) to suit both small and heavy users.
  • ✓ Several possible durations (2, 8, 15, or 31 days) covering most tourist stays in Japan.
  • ✓ Very affordable trial plan with 500MB over 2 days to test the service before a longer trip.
  • ✓ Daily plan with high-speed data then reduced speed, interesting for intensive use spread over several days.
  • ✓ 100% dematerialized activation via eSIM, no need to pick up a physical card or Wi‑Fi router.
⚠️

Disadvantages

  • ✗ Service limited only to Japan, not suitable for multi-country trips.
  • ✗ No classic voice calls or SMS included, which requires using messaging apps via data.
  • ✗ Detailed information on payment methods, support languages, and compatible devices not clearly highlighted.
  • ✗ No clearly highlighted dedicated app, management is mainly done via the website.

Description

WG Japan eSIM is an eSIM service dedicated to travelers in Japan, offered by WirelessGate. The plans are data-only, without calls or SMS, and use a local Japanese network to provide a fast connection during your stay. You can choose plans ranging from 500MB to 100GB, with durations from 2 to 31 days, as well as options with daily data and reduced speed once the quota is reached. Purchase and activation are done online, making it a convenient solution for tourists, digital nomads, and business travelers who want to stay connected from arrival.

How it works

Make sure your smartphone is eSIM compatible and unlocked for use with international operators by checking the device settings or manufacturer documentation.

Visit the official WG Japan eSIM page and browse the list of data plans available for Japan.

Select the plan that best corresponds to your stay based on data volume, duration, or daily formula, then add it to the cart.

Enter your email address and necessary information to receive installation instructions and the eSIM profile.

Make payment online using the payment solutions offered on the site, then wait to receive your eSIM activation information.

From your phone settings, add a new mobile plan then scan the QR code or follow the installation link provided by WG Japan eSIM.

Upon arriving in Japan, activate the WG Japan eSIM line in settings, select it for mobile data, and check that data roaming is enabled if necessary.

Alternatives

FAQ

No, WG Japan eSIM plans are designed only for use in Japan and do not support multi-country travel.

Plans range from 500MB for the trial plan up to 100GB, with several intermediate options such as 3GB, 10GB, 30GB, and 50GB.

Plans cover different lengths of stay, including 2 days for the trial plan, 8 days, 15 days, and up to 31 days for some data volumes.

No, WG Japan eSIM plans are data-only and do not include a local number or classic calls or SMS services.

WG Japan eSIM offers an 8-day unlimited plan with a daily high-speed data volume followed by reduced speed once the daily quota is reached.

Yes, it is possible to choose and purchase a plan online before departure, then install the eSIM profile to have internet upon landing.

The most affordable plan is the JAPAN eSIM Trial Plan with 500MB of data valid for 2 days at 1.99US$.

WG Japan eSIM offers support available continuously, 24 hours a day and 7 days a week, reachable through the contact channels indicated on the official website.

Company info

Legal name: WirelessGate, Inc.

Address: Tennoz Ocean Square, 5F 2-2-20 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002, Japan

Email: [email protected]

Website: https://wirelessgate.com/japan-esim/

Support

24/7

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