How to Stay Connected in Japan: SIM, Wi-Fi, and Apps

Traveling in Japan is amazing, but staying connected can be tricky — especially if it’s your first visit.
In this guide, we’ll walk you through your best options for internet access in Japan: SIM cards, pocket Wi-Fi, and essential apps.

Prepaid SIM Cards

For short-term travelers, prepaid SIM cards are a great option. You can buy them at:

• Airports (e.g. Narita, Haneda, Kansai)

• Electronics stores (BIC Camera, Yodobashi)

• Online before your trip

Popular providers:

• Sakura Mobile

• Mobal

• Japan Wireless

Most SIMs include data-only, but some also allow calls. Make sure your phone is unlocked before using.

Pocket Wi-Fi (Mobile Router)

A pocket Wi-Fi is a portable router that connects multiple devices at once — ideal for families or groups.
You can rent one:

• Online (with airport pickup or hotel delivery)

• At the airport upon arrival

Pros:

• Unlimited data (depending on plan)

• Connects laptops, phones, tablets

• No SIM setup required

Popular companies: Japan Wireless, Ninja Wi-Fi, Global Advanced Communications

Free Wi-Fi in Japan

Japan has improved its free Wi-Fi access, but it’s still limited in some areas.

Where to find it:

• Convenience stores (7-Eleven, Lawson, FamilyMart)

• Airports & train stations

• Starbucks, McDonald’s, hotels

Tip: Download the Japan Wi-Fi Auto-connect app for easy access to thousands of free spots.

Must-Have Apps for Travelers

Real Traveler Experience

“I rented a pocket Wi-Fi at Narita Airport and it worked perfectly everywhere — even in the mountains of Hakone! It saved me from getting lost so many times.”

Summary: What’s Best for You?