Which Japan SIM Card Is Best? A Real Comparison for Foreign Visitors!

Choosing the right SIM card in Japan can be confusing, especially for first-time visitors. That’s why I decided to do a real Japan SIM card comparison to help you find the best option for your needs.

Smartphone showing active 5G SIM connection

The Main Contenders: What’s on Offer?

Before making my choice, I looked into several well-known providers, including:

  • Mobal

  • Sakura Mobile

  • Nippon SIM

  • IIJMio

  • Softbank Prepaid SIMs

This Japan SIM card comparison covers the most popular options for travelers.
Each has its own strengths and weaknesses, so I focused on the factors that matter most to travelers and new residents:
Ease of purchase, English support, data speed, call/SMS options, and overall value.

What I Found: Side-by-Side Comparison

For anyone needing a Japan SIM card comparison, here are the key differences.

Feature Mobal Sakura Mobile Nippon SIM IIJMio/Softbank
Japanese Phone Number Yes (Voice & SMS) No (data only) No (data only) No (data only)
Data + Voice Plans Yes No No No
English Support Yes Limited Limited Limited
Worldwide Shipping Yes (free) Sometimes Sometimes No
No Contract Yes Yes Yes Yes
Activation Fee No Sometimes Sometimes Sometimes
Network Softbank/NTT docomo NTT docomo NTT docomo Multiple

My Experience with Each Provider

Sakura Mobile & Nippon SIM

Setting up eSIM on a smartphone before visiting Japan

These are popular among tourists for their straightforward data-only plans. Ordering was easy, and pick-up at the airport was convenient. However, I quickly realized that not having a Japanese phone number was a real limitation. Many local services, apps, and even some Wi-Fi rentals required a Japanese number for verification.

IIJMio & Softbank Prepaid

These options are widely available, but most plans are data-only and the application process is often in Japanese. Customer support in English is hit-or-miss, and I found myself wishing for a bit more guidance.

Mobal

What surprised me most about Mobal was how “foreigner-friendly” the whole process felt. The website is in clear English, customer support was responsive, and—most importantly—I received a real Japanese phone number. This made it much easier to book restaurants, register for local services, and use Japanese apps. The free worldwide shipping meant I could set everything up before I even landed in Japan.

After my Japan SIM card comparison, I found that Mobal offers unique advantages.

What Really Matters for Foreign Visitors?

After trying different providers, here’s what I learned:

  • A real Japanese phone number is a game-changer for daily life, from app verification to making reservations.

  • English-language support saves time and frustration, especially if you’re new to Japan.

  • No hidden fees or contracts make it easy to manage your stay, whether short-term or long-term.

Other Tips for a Smooth Stay in Japan

In addition to choosing the right SIM card, finding comfortable accommodation is another key to enjoying your time in Japan.
If you’re also looking for a place to stay during your time in Japan, check out Tokyo Room Finder for a wide selection of apartments and share houses for foreigners.

So, Which SIM Card Would I Recommend?

Smartphone with mobile apps used alongside SIM cards in Japan

While every provider has its own merits, Mobal stood out for its flexibility, ease of use, and the peace of mind that comes with having a Japanese phone number and English support. It’s not the cheapest data-only SIM, but the extra features and convenience made a real difference in my experience.

If you want to compare more options or check the latest prices, I recommend visiting simcardgeek.com for a side-by-side comparison of the best SIM cards for Japan.

Conclusion:

If you’re coming to Japan and want a hassle-free, reliable SIM card that truly supports foreign visitors, Mobal is hard to beat. But don’t just take my word for it—explore your options and choose what fits your needs best! 

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