Japan 20 GB
RoamVault
30 days
20 GB
Earn $1.40 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
Help Center
Does my phone support eSIM technology?
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.
Can I use my physical SIM along with the eSIM?
Yes! With dual-SIM functionality you can have both your physical SIM and eSIM active at the same time.
I already have an active eSIM in my phone, can I use your service?
Yes, your phone can store many eSIM profiles at once. You can choose which one to use at in your phone settings.
Can I use Mobile Hotspot or Tethering with my eSIM?
Yes! Mobile hotspot featured is enabled in all of our products, except if explicitly mentioned in the product details.
Earn $1.40 rewards cashback in your MobiPay wallet with this purchase
4.8/5
App Store
4.9/5
Google Play
Excellent
Trustpilot
Reviews
5.0
amazing
Keren
Play StoreHow it works
- 1
Checkout using secure payment methods
Get your eSIM by email within seconds.
- 2
Install eSIM
Instantly get your eSIM and configure it in your eSIM compatible device
- 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.
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 RewardsHear from our customers
5.0
I’m using MobiMatter for the first time and I’m very impressed! The eSIM works perfectly, the prices are very affordable, and the customer service is excellent and helpful. Everything has been smooth and easy so far. Highly recommended!
VVincenzo Floriddia
Play Store5.0
After 2–3 years of using the service, I encountered a problem for the first time. I can only praise the excellent technical support, which responded very quickly and with whom I exchanged several emails until the final resolution. Professionalism at its best!
NNikola Veselinovic
Play Store5.0
MobiMatter is the best application for esim. The support works perfectly.
NNodir1982
App Store5.0
I tested the speed. It connected even faster than the internet I use at home in Turkey. There's no need to unnecessarily enrich service providers. You can use it abroad with peace of mind.
Translated from Turkish
BBurak taşkın
Play Store5.0
In Turkey and Georgia in the summer of 2025, I used the app, and everything worked perfectly! The prices are cheaper than buying a SIM card at the airport.
Translated from Russian
YYury2701
App Store5.0
I was worried that because I deleted my e sim before using it, I was gonna have to buy another one. They answered in email super fast, gave me a new one, and it's been working great. Best customer service ever. Will be buying monthly while I'm overseas!
JJendhisbdbd
App Store5.0
I used it for the first time with my wife during our trip to Japan and Korea, and I didn't experience any connection problems. The internet was fast enough in both Japan and Korea, and I was satisfied with the app. I recommend it.
Translated from Turkish
DDinçer Altınok
Play Store5.0
The best and reliable place to get eSim for international travel at the best rates.
AAyush Dhaubanjar
Play Store5.0
It's truly excellent; you can get 24/7 support when you encounter a problem. It's the best e-SIM app.
YYasar Cengiz
Play Store5.0
After trying several apps, I found this to be the best internet shopping app. It has many options, very reasonable prices, and rewards on every purchase. I didn't encounter any problems, and the app is safe and reliable.
AAlsfwn
Play 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.
Illustrative usage data. Top-up available on supported eSIMs.
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Buy the Best eSIM for Japan
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