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Japan 10 GB

RoamVault

5G

30 days

10 GB

Earn $0.80 rewards cashback in your MobiPay wallet with this purchase

Details

Data

Calls

SMS

Network

5G/4G/LTE

Activation Policy

Package activates upon first data usage.

IP Routing

Hong Kong

Hotspot

Available

Speed

Unrestricted

Top-up

Not Available

Usage Tracking

Realtime, in-app

  • This is a data-only eSIM. It does not come with a phone number.
  • Simply scan the QR code to download and use the eSIM. No other activation or registration steps needed.
  • One-time prepaid package. No auto-renewals, no contracts.
  • No daily limits, no throttling. Mobile hotspot is supported.
  • Usable only with eSIM compatible phones and tablets which are not carrier locked. If in doubt, please check the FAQ section.
  • The eSIM will expire if not activated within 2 months of purchase.

4.8/5

App Store

4.9/5

Google Play

Excellent

Trustpilot

Destinations & networks

⚠️ The operator can change the networks the eSIM connects to without notice.

🇯🇵

Japan

SoftBank5G
au (KDDI)5G
NTT docomo5G
Rakuten5G

Help Center

The sure way you can verify if your phone is compatible: iPhone: Go Settings -> Cellular (or Mobile Data). If you see ‘Add Cellular Plan’ or ‘Add Mobile Plan’, the phone supports eSIM Samsung: Go Settings -> Connections -> SIM Card Manager. If you see ‘Add Mobile Plan’, the phone supports eSIM Google Pixel: Go Settings -> Networks & Internet -> SIMs -> ‘+Add more’. If you are using Pixel 4/4a or a later model, it will be there. IMPORTANT! Some models have exceptions depending on models and markets. Operator locked devices: If your device is locked to a specific carrier due to a contract, it needs to be unlocked first to be able to use the eSIMs sold on our platform.

Yes! With dual-SIM functionality you can have both your physical SIM and eSIM active at the same time.

Yes, your phone can store many eSIM profiles at once. You can choose which one to use at in your phone settings.

Yes! Mobile hotspot featured is enabled in all of our products, except if explicitly mentioned in the product details.

Reviews

5.0

you are the best

M

Marko

Play Store

How it works

  1. 1

    Checkout using secure payment methods

    Get your eSIM by email within seconds.

  2. 2

    Install eSIM

    Instantly get your eSIM and configure it in your eSIM compatible device

  3. 3

    Enjoy high speed connectivity

    Once eSIM is configured, you can enjoy high speed roaming data connectivity

Why MobiMatter is best for Japan eSIMs?

Instant Activation

Activate your Japan eSIM in seconds. Install it in one tap from the MobiMatter app, or scan the QR code, and stay connected from the moment you land.

Flexible Plans, Great Value

Choose affordable short or long-term data packages for Japan - perfect for business trips, vacations, or for digital nomads. Most packages provide the option to top-up also.

How MobiMatter compares with other eSIM brands

24/7 Customer Support

Stay connected with peace of mind, backed by our round-the-clock customer service team. Reach out to them via the troubleshoot link.

MobiMatter Rewards

Sign in and pick one reward at checkout on every order.

  • 10%

    cashback on every order

  • 3%

    instant discount

  • up to

    $5

    for you and every friend you refer

Referral rewards apply to your friend’s first purchase.

Explore MobiMatter Rewards

Hear from our customers

  • 5.0

    I’ve been travelling around SE Asia for the last 7 months, covering 6 different countries, and this app has been amazing throughout when needing to change eSIM. Very easy set-up when buying one and if you in fact are having some troubles, contacting the support team and talking through email takes no time at all. I was having some difficulty with an eSIM in Vietnam since my phone was not finding a signal no matter what I did - their support team helped me and guided me on different ways to fix it. Thank you!!

    M

    Mosepth

    App Store

  • 5.0

    I would like to thank the Mobimatter support team for solving our problem in a short time without any problems.

    M

    Mkaya16

    App Store

  • 5.0

    very versatile packs , plans i can choose as per regional or international. Support team is very quick in response and very helpful. i have been using the app for few years already , very well sorted app.

    J

    Jashan sohal

    Play Store

  • 5.0

    The app is great,quick, easy to use, and very well designed. Everything is clear, detailed, and easy to understand. Whenever I have an issue or a question, the support team is always quick to respond and provides detailed, helpful answers. Overall, a really great experience! Highly recommend

    S

    Seam00

    App Store

  • 5.0

    Excellent app! Very easy to use, convenient, and user-friendly. Everything works smoothly. Highly recommended!

    A

    Alex Levitsky

    Play Store

  • 5.0

    Excellent service. I am using MobiMatter esim for few years and i am very happy.

    M

    Mariam ARS

    App Store

  • 5.0

    It's great easy to use and allows you to compare multiple esims

    A

    Ainars Dobulis

    Play Store

  • 5.0

    Great one, easy setup, large selection of pacakages

    A

    Ahmed El Wessimy

    Play Store

  • 5.0

    An excellent app with very reasonable prices compared to the exorbitant prices in Türkiye. The internet speed is excellent, and it provides 5G coverage, provided the phone supports eSIM functionality.

    M

    Mohammad Jarrar

    Play Store

  • 5.0

    Solved in a few minutes. It’s a really trustworthy app

    P

    Pedro Maldini

    App Store

Check data onyour Home Screen.

Add the MobiMatter widget to see data and days left at a glance, then top up in the app before you run out.

Download on the App StoreGet it on Google Play

Illustrative usage data. Top-up available on supported eSIMs.

Essential travel tips and guides for Japan

Sep 30, 2026 — 15 min read

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What is Golden Week 2026 and Why the Travel Surge is so Big Golden Week 2026 runs from October 1 through October 7, a seven-day national holiday built around China's National Day. Because 2026's Mid-Autumn Festival falls a full week earlier, on September 25 to 27, the two holidays stay separate this year rather than merging into one extended break, so the October holiday keeps its standard seven-day shape. That seven-day window is still enough to trigger one of the largest travel movements on t...

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Sep 21, 2026 — 43 min read

The 20 Best Places to See Autumn Foliage in October 2026

Why October 2026 is the Best Month to Chase Autumn Colour October is the only month in which the northern hemisphere's three great foliage regions overlap. Japan's mountain interior, the Alpine and Carpathian belt across central Europe, and the North American maple corridor all carry colour somewhere within the same thirty-one days. No other month gives a traveller that choice, and the practical consequence is that a single trip can be planned around colour rather than around a holiday calendar...

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Sep 8, 2026 — 17 min read

Asian Games 2026 Nagoya: Travel Guide & Venue Tips

The 20th Asian Games (Aichi-Nagoya 2026) runs September 19 to October 4, 2026, with select events starting as early as September 10, across roughly 53 venues in Aichi Prefecture and Nagoya, Japan. Expect 43 sports, 469 gold medals, and athletes from 46 nations. The fastest way in is the Tokaido Shinkansen: about 94 minutes from Tokyo and 47 minutes from Shin-Osaka on the Nozomi service. Between sessions, Nagoya Castle, the Sakae shopping district, and the city's food scene fill the gaps easily....

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Japan 10 GB

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