basic information

Mobile phones

Japan is a leader in mobile phone technology and usage with about 75% of the population owning one. Mobile phones are everywhere, and they are constantly getting new features such as internet browsers, games, cameras, televisions, electronic wallets/train passes, gps/navigation and music players.

The biggest mobile phone companies in Japan are NTT Docomo, au by KDDI, and Softbank (formerly Vodafone, and before that J-phone). Docomo is the most popular company with about 50 million subscribers. Au is next with about 30 million subscribers, while Softbank has about 15 million subscribers.

Do foreign phones work in Japan?

Due to different technologies, mobile phones from your home country may not work in Japan. Most importantly, there is no GSM network, so GSM phones do not work. There are two things that are required for your telephone to work:

1. Compatibility with the Japanese mobile phone network - The only foreign phones that work in Japan are some 3G models, however the number of compatible phones is increasing. Contact your service provider for details concerning your particular phone.

2. International roaming plan or rental SIM card - With an international roaming plan (from your home service provider) you use your own phone and number, but are charged international roaming rates which tend to be expensive. Alternatively, with a rental SIM card (from a Japanese provider) you use your own phone with a Japanese phone number and lower rates.

Do Japanese phones work outside of Japan?

The majority of Japanese phones will not work overseas due to network differences; however, there are phones available that can operate on 3G and GSM networks (only in certain countries) with the appropriate international roaming plans, although while overseas some of their advanced functions will likely not work.

Generally speaking it is not possible to use a Japanese phone with a foreign service provider because most do not use SIM cards and the few that do are locked and are difficult (if not impossible) to unlock. Also, Japanese phones are designed at a hardware and software level to work with only a particular service provider. As a result they are not interchangeable even between Japanese service providers.

How to get a mobile phone:

Rental Phones

Renting typically requires a picture ID and a credit card, and is the only way for the typical traveler to get a telephone in Japan. There are many companies with kiosks at the airports, while other companies will mail a phone to your hotel or to your home. You can return the phones at the airport or through the mail depending on the company.

The fees for rental phones vary and usually consist of the rental fee (typically 250-1000 yen per day) plus a usage fee (typically 70-200 yen per minute outgoing domestic, incoming free). All of the companies at the airports have same day rentals, while some companies offer discounts for advanced internet reservations.

Prepaid Phones

Due to past criminal abuse of the prepaid system, the purchase of a prepaid phone now requires proof of a Japanese residence such as a Japanese driver's license or an alien registration card. With prepaid phones you must purchase the phone and pre-buy credit which can be bought at cell phone stores and convenience stores.

Subscription Plans

With subscription plans you pay for your usage at the end of a monthly billing cycle as opposed to prepaid phones where you buy your usage before you use it. The phones themselves can be free although that typically requires a 2 year contract.

All the latest and most advanced phones are available with subscription plans and the selection of handsets is huge. Subscription plans are only available to residents and require an alien registration card and a Japanese bank account.

Guide to Telephones in Japan: Mobile Phones Payphones and Landlines How to Dial

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