Plan your Japan trip without
the overwhelm
How to get mobile data in Japan with eSIM and SIM cards
When you travel in Japan, having reliable mobile data makes everything easier. Finding your way, booking accommodation, checking train schedules, or translating menus becomes simple. I see a lot of travelers overcomplicate this part. In reality, getting mobile data in Japan is straightforward once you know your options.
Mobile data in Japan what you need to know
Japan has excellent mobile coverage, even outside major cities. Trains, countryside areas, and small towns are usually well covered.
The main thing to decide is whether you want a physical SIM card or an eSIM. Both work well. The best choice depends on your phone and how you like to travel.
Using a SIM card in Japan
Prepaid SIM cards are easy to find in Japan.
You can buy them:
At major airports after landing
In electronics stores like Bic Camera or Yodobashi Camera
Most tourist SIM cards are data only and valid for 7, 14, or 30 days. Before buying, check that your phone is unlocked.
If you want to save time, ordering a SIM card in advance is a good option. You land, insert it, and you are connected right away.
Using an eSIM in Japan
If your phone supports eSIM, this is the simplest option.
There is no physical card to install. You download the plan, scan a QR code, and activate it in a few minutes.
Popular eSIM providers for Japan include:
Ubigi, Holafly, Airalo, Saily, Yesim
Most eSIMs can be activated just before departure or right after landing.
eSIMs work especially well for travelers who want something fast and flexible.
They offer:
-Instant activation
-No need to swap SIM cards
-Often better prices than physical SIMs
-Easy use when visiting multiple countries
-Another advantage is keeping your main SIM active. If your WhatsApp or banking apps are linked to it, nothing changes.
E-SIM providers : Stay connected abroad without physical SIM cards. Flexible data plans, instant setup, and coverage in Japan and worldwide.
Why mobile data changes your trip in Japan
Having internet access in Japan really changes how you travel.
You can:
Use Google Maps or Navitime to navigate trains and buses
Look up restaurants, cafés, and nearby places
Translate signs and menus in real time
Book hotels or Airbnb while moving
Message hosts, confirm check ins, or buy train tickets
It removes stress and gives you more freedom day to day.
SIM card or eSIM what should you choose
If your phone supports eSIM and you want simplicity, go with an eSIM.
If your phone is older or not compatible, a prepaid SIM card works perfectly fine. Both options are reliable in Japan. The best choice is the one that fits your phone and your travel style.
Marie creator behind @Tabimawari
Hi, I’m Marie.
French islander from Reunion island, Japan lover, and travel planner behind Tabimawari.
I spent a year living in Kyoto, learning Japanese and falling in love with the culture. Since then, I’ve kept going back, exploring every corner from Tokyo to the tiniest hidden towns.
I created these guides after spending months planning, testing, and fine-tuning every detail so you don’t have to. Inside, you’ll find:
✅ Interactive maps
✅ Step-by-step directions
✅ Local spots + travel tips
✅ Offline use
Each guide is made with care, based on real-life travel, not generic blog advice.
This is what I wish I had on my first trip to Japan and now it’s yours.
MY SOCIALS
MY NEWSLETTER
Japan Monthly by Tabimawari : Subscribe to get a monthly email packed with inspiration, local tips, and events happening across Japan straight from someone who’s lived and traveled a lot.
Marie creator behind @Tabimawari
Hi, I’m Marie.
French islander from Reunion island, Japan lover, and travel planner behind Tabimawari.
I spent a year living in Kyoto, learning Japanese and falling in love with the culture. Since then, I’ve kept going back, exploring every corner from Tokyo to the tiniest hidden towns.
I created these guides after spending months planning, testing, and fine-tuning every detail so you don’t have to. Inside, you’ll find:
✅ Interactive maps
✅ Step-by-step directions
✅ Local spots + travel tips
✅ Offline use
Each guide is made with care, based on real-life travel, not generic blog advice.
This is what I wish I had on my first trip to Japan and now it’s yours.
MY SOCIALS
MY NEWSLETTER
Plan your Japan trip without
the overwhelm
Follow me
Newsletter
Japan Monthly : Subscribe to get a monthly email packed with inspiration, local tips, and events happening across Japan straight from someone who’s lived and traveled a lot.