Internet in Japan: SIM, eSIM, and Pocket WiFi to stay connected
How do I get internet in Japan? What options are available? Here's everything you need to know.
Having a stable internet connection while traveling in Japan is essential. Free Wi-Fi in Japan is available in airports, hotels, and cafes, but it's often slow, unstable, and cumbersome to use due to complex sign-up procedures. If you want to be connected anytime, anywhere—to use Google Maps, translators, reservations, virtual Suica, or simply WhatsApp—we recommend having a reliable, personal internet connection.
Infinite 5G offers you three ideal solutions: eSIM , physical SIM , and Pocket WiFi . Here's how they work.
eSIM Japan: the virtual and immediate solution
An eSIM is a digital SIM : it's activated by scanning a QR code, without having to insert anything into your phone. It's perfect for those with a compatible smartphone who want to activate the connection in seconds, directly upon arrival in Japan.
Available data : 5GB, 10GB, 20GB or unlimited
Activation : scan the QR code received via email
Compatibility : Only works with eSIM-ready smartphones
Delivery : by email, immediate
✅ Quick to activate, no shipping, perfect for those traveling light.
Physical SIM card in Japan: the most classic and straightforward choice
The physical SIM is a traditional SIM card that you can insert into your smartphone upon arrival in Japan, ideal for instant internet access. Infinite 5G ships it directly to your home before your departure , so you can activate it as soon as you land.
Data : Unlimited
Compatibility : Any smartphone with a standard SIM slot
Delivery : Shipped to the indicated address, before the trip
✅ Ideal for those who prefer a simple, plug & play option.
Pocket WiFi: Perfect for families, couples and group travel
The Pocket WiFi is a portable router that creates a dedicated Wi-Fi network, to which you can connect up to 11 devices simultaneously: smartphones, tablets, laptops… ideal for groups or for those who work on the go.
Data : Unlimited
Battery life : all day
Connections : up to 11 devices
Delivery : Shipped to your home before departure
✅ Great for groups or for those who want to share the internet without changing SIM cards.
Although free Wi-Fi is available in stations, hotels, and shopping malls in Japan, it is not a reliable solution for travelers: it often requires registration each time, the connection is slow and unstable, and data security is not guaranteed, leading to risks of interception.
The best advice for those traveling to Japan: choose a personal, stable, and secure internet connection to avoid network problems and browse without interruptions.
Frequently Asked Questions
Is a SIM, eSIM, or Pocket WiFi better for Japan?
It depends on your needs:
Traveling alone and looking for convenience? 👉 eSIM
Want something simple but your phone isn't compatible with eSIMs? 👉 Physical SIM
Are you a group of people? 👉 Pocket WiFi
Can I get everything before I leave?
Yes! The physical SIM and Pocket WiFi are shipped directly to your home before your departure. The eSIM arrives by email.
Does Wi-Fi work in Japan?
It exists, but it's not recommended for those who need a stable connection. It's best to have a personal alternative.
Is eSIM compatible with all phones?
Only with recent smartphones that support eSIM. Check your device settings.
