⚡ Instant 5G eSIM for Japan travel
⏱️ Choose from fixed durations between 1 and 31 days
📶 Truly unlimited data with full-speed 5G on the KDDI network - no data caps
🔓 No contracts, hidden fees, or language barriers
❤️ We're 100% charity-owned, supporting school meals, education & training in Malawi
For unlocked and eSIM compatible devices. Check compatibility.
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Choose your plan length:
Choose your plan length: 1 - 31 days
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All prices include tax - no surprises at checkout!
Secure payment
Payments are processed in Japanese Yen (JPY)
Prices shown in other currencies are for reference only and may vary slightly.
Getting Your Data Only eSIM
Digital Delivery
After you place your order, we’ll email you simple activation instructions. You can install your eSIM in minutes and even set it up before you travel, so it’s ready to use when you arrive in Japan.
100% Charity-Owned
Mobal is 100% charity-owned. The profits from your service help support education, jobs, and essential needs in Malawi and beyond.
English Language Support
Our friendly team is here to support you in clear, easy-to-understand English when you need assistance.
Money Back Guarantee
We're confident you'll love our service. That's why we offer a full, prompt, no-hassle money-back guarantee.
T&Cs apply.
Product Details
This unlimited 5G eSIM is perfect for travel in Japan. Enjoy fast, reliable data across cities and beyond, with instant connectivity from the moment you arrive.
You get unlimited data at 5G speeds for
16 days
with no data caps
You get access to Starlink-enabled WiFi hotspots at mountain huts and on select ferry services
You can also use up to
15GB for personal hotspot/tethering during your
16 days
The eSIM is data-only (no voice or SMS). If you need a Japan eSIM with a local phone number, click here.
It uses the KDDI network, ensuring near-universal coverage across Japan
Quick and hassle-free setup - you'll get access to your eSIM within minutes
For unlocked and eSIM compatible devices. Check compatibility.
Unlimited 5G Data
Enjoy unlimited data with no caps and no top-ups - just seamless 5G speed whenever you need it. Stream, browse, and stay connected with confidence thanks to reliable, wide-reaching coverage wherever you go.
Only Pay for the Days You Need
Choose exactly how long you need service in Japan. Our eSIM lets you select any duration from 1 to 31 days, so you only pay for the coverage that matches your travel dates - no wasted days, no unnecessary costs.
Simple Activation
After purchase, we'll email you activation instructions for your eSIM. You can get connected within minutes, or schedule activation for a future date if you're not yet in Japan.
Great Coverage
Stay connected across Japan with our eSIM, which reaches over 99% of the population. We partner with KDDI, one of the country's top network providers, to ensure fast, reliable service wherever you go.
Hotspot & Tethering Enabled
Turn your phone into a hotspot to connect multiple devices. You can use up to 15 GB for personal hotspot/tethering during your 16 days.
High-Speed Wi-Fi at Sea
Stay connected even while crossing the ocean. This service uses Starlink satellite technology to deliver fast, reliable Wi-Fi onboard selected Japanese ferries - so you can browse, stream, and stay in touch throughout your journey. Available on selected ferry routes .
Wi-Fi in Japan's Mountain Huts
Enjoy internet access in Japan's most remote mountain areas. Yamagoya (mountain hut) Wi-Fi delivers reliable connectivity via satellite technology, so you can stay informed and connected while exploring Japan's iconic peaks. Available at 100+ mountain huts .
Data Speeds
Full 5G speeds, dependent on local network availability
Usage Limits
None! There is no fair-use limit to using 5G data on the device on which the eSIM is installed – your 5G data is unlimited and your speeds will never be throttled.
Hotspot
You can use your 5G data for personal hotspot/tethering - the data allowance depends on your chosen plan length. Check out the Product Details section of this page to see exactly how much data you can use for tethering for your chosen plan length.
Activation
Your eSIM will activate automatically when you arrive in Japan, as long as you’ve followed the simple installation instructions (we’ll send you these when you order your eSIM).
SMS/Calls
No available with this eSIM. If you need an eSIM with a phone number, check out our Voice+Data eSIM here.
Network
Your eSIM will connect to the KDDI network – one of the biggest and most reliable in Japan.
Mobal’s Japan 5G eSIMs work with any unlocked device that supports eSIMs. If you’re unsure whether your device is compatible, you can quickly find out by dialling *#06#. If you can see a 32-digit EID number, your phone is compatible!
FREE Digital Delivery
We'll email you activation instructions after purchase. You can install your eSIM in minutes and even set it up before you travel, so it’s ready to use when you arrive in Japan.
Shop with Confidence
Try our Japan eSIM risk-free and travel with confidence! Not completely satisfied? Our Money Back Guarantee has you covered.
Terms & Conditions apply.
Get Unlimited Data in 3 Easy Steps
Japan 5G eSIM
FAQs
Mobal has been keeping people connected since 1989. Our award-winning teams in Japan and the UK are made up of experts and expats, who know exactly what it's like to be in a new country. We're committed to making Japan easy for foreigners!
Mobal is 100% charity-owned. That means that the profits we make go straight to making life better for some of the most under-privileged communities. Find out more here!
Our Mobal eSIMs only work in Japan. They will not work in any other countries.
Sure! Our Japan SIM cards are available too - get your Japan SIM card here.
Mobal's 5G eSIM service uses the KDDI network. This have been found by OpenSignal, a global independent provider of network coverage information, to cover over 99% of Japan's population.
You can use Mobal eSIMs in any unlocked device that's compatible with eSIMs and supports the Band 1 (2100MHz) frequency. - how to check if your phone is eSIM compatible.
That means that any Android smartphone or Apple iPhone that is compatible with eSIMs can use a Mobal Japan eSIM, including USA iPhone 14s and 15s which are eSIM-only.
Devices or adapters which use physical SIM cards to simulate eSIM, are not supported. If your device supports only physical SIM cards, please check out our Japan SIM Cards here.
Can I get a physical SIM card instead?
Sure! We have physical SIMs too - get your Japan SIM card here.
What does "unlocked" mean?
If your device is "unlocked", it means that it can work with a SIM from any network. If your device is "locked", it is restricted to work only on your regular carrier's network. Your device must be "unlocked" to work with a Mobal eSIM.
How do you know if your phone is unlocked?
If you purchased your device as an "unlocked" or "SIM Free" device from a retailer such as Amazon, then your device is almost certainly already unlocked. This means that it will work with our eSIM. If you purchased your device directly from your carrier (AT&T, T-Mobile, etc.), your device is probably locked and, therefore, it may not work with our eSIM. If you're still not sure whether or not your device is unlocked, simply contact the store where you purchased your device from.
My device is locked. What can I do?
If your device is locked, it may be possible to get it unlocked - simply ask your provider about this.
Your Purchase
Makes a Difference
Mobal is 100% charity-owned. That means that the profits from your Mobal service go straight towards helping the communities that we support in Malawi and beyond!
With Mobal, you don't just travel the world, you make it a better place!
Awards and Recognition
We're proud to be recognised for our service and impact – these achievements reflect our commitment to our customers and our mission to give back with every purchase.
We're thrilled that Mobal has won the 2025 King's Award for Enterprise in International Trade - the UK's most prestigious business award! This celebrates the fact that our parent company, Mobell Communications Ltd, alongside our sister brands MobalPay and Hanacell, has grown to become one of the world's most trusted providers of crucial services for travellers, students, expats, and long-term residents in Japan.
We're proud and honoured that Mobal has been awarded the 2025 Social Product Award. It recognises the dedication of our international team and the trust of our customers over the years. This award not only reflects our commercial growth, but also our commitment to doing good through business. To be acknowledged amongst other amazing organisations that share the same mission to create a better world was truly an honour!
Is my device eSIM-compatible?