Stay Mobile in Japan

Recommended Plan

UNLIMTED Prepaid SIM Card for Under 30 days

docomo 25GB/month with SMS SIM Card for Over 60 days

Rental SIM Compatibility APN Setting Troubleshooting
5% OFF COUPON for All SIM Card. Enter coupon code: SIM11

SIM Card Rentals: The Secure Option

Many people choose an expensive airport Prepaid SIM card, but only to encounter problems with an area lock, frequency, or network coverage. However, with rental SIM Cards, you can rest assured knowing you'll have full support getting and staying connected. And if you have issues with the area or your phone compatibility, guaranteed refunds, no questions asked!

SIM Card Rentals: Long-term use

There are no prepaid SIM cards over 3 months period in Japan. If you're going to be in Japan for more than three months, Our Rental SIM card is the best option.

Data SIM Card
Data SIM Card

*Nano to Micro /Standard adapter available upon request.
Please leave a message in the box on the order page.

High-speed, Nationwide

More than 90 days available

The SIM is for data communication only.

Advantages of Renting with CDJapan

anywhere anytime

Unlimited data usage

Truly unlimited data, and no extra fees.

Easy set up, no activation required

Easy setup, no activation required

Android: Change the APN setting internally
iPhone: Download and install the APN profile with our link
and you're ready to go online!

Best deal available in Japan

The best value in Japan!!

Starts from 1400JPY for 5 days for unlimited data usage.

Stable Connection, LTE Service Available

Fast and stable LTE service

Reliable service provided by NTT DOCOMO with 100% coverage. Maximum download speed of 260Mbps.

To use a CDJapan SIM card you need an unlocked smartphone that is compatible with 3G/LTE Band 1(2100MHz) and 19 (800MHz..
Unlocked devices are not blocked by a specific operator for use with other operators (usually this happens when you purchase your phone through your service provider)
To use our SIM card with your phone, you will need to configure the APN(Access Point Name) setting. If you have an android device, we'll give instructions for manually creating a new APN. If you have an iOS devices, you will download the profile with Safari install the APN profile.
Make sure to delete the APN after use to ensure you can use your phone with other SIM Cards!

For the details on how to set the APN, please check the following page: SIM Card APN Setting

If you're worried about SIM compatibility, we recommend you rent a Pocket Wi-Fi instead of a SIM card. Pocket Wi-Fi works with any Wi-Fi enabled device. (See our mobile wi-fi plans: Mobile Wi-Fi Rental)

Extend your rental period easily from My Page anytime before the return date.
Extension packages will be available for purchase once the package is sent out.


If you are unable to use the SIM, post the item back within 2 days of the start date with the refund request slip enclosed in the package. Refunds will be calculated by deducting the following:
Handling fee: 300 yen/SIM
Shipping: 690 yen/order
*Express shipping fee is non-refundable.


Full refunds are given when an order is cancelled 5 days or more prior to the start date. Partials refunds will be issues for later cancellations. For further details, please read the following page: Refund and Cancellation

How much data is available per day?

Our service allows for unlimited Internet access. High-speed communication is 200MB or 350MB per day. It varies depending on the plan. However, the connection speed will be reduced to 256Kbps until 0:00 once you have reached your allotment of high-speed data on a given day.

Can I connect to the Internet anywhere in Japan?

Yes, you can connect almost anywhere. You can connect to the Internet even in subways and mountainous areas. However, you may not be able to get a signal in places where there are no residents.

Do I need to return the SIM card?

If you order a rental SIM card, you need to return it.

Can I use tethering/hot spots?

Yes, it is possible.

Can I make phone calls?

No, it is for data communication only.

Can I use SMS and MMS?

No, it is for data communication only.

What should I do if I can't connect/there is no signal?

If you return the rental SIM card within 2 days of the start of the rental, you will be refunded minus the shipping fee and handling charges.

What is the APN setting information?

Please refer to this page.

How do I know if my device is compatible with your SIM card?

Please refer to this page.

Rental Process


* Once the payment is completed, a confirmation email of your order payment will be sent.
* Once your package is sent out, a delivery information email with the tracking number of the package will be sent.
* A reminder email will be sent few days before the return date.

Our SIM Service

Prepaid eSIM

¥ 3200 ~

  • 30/50GB
  • No Need to Replace SIMs
  • Completed Online
See Plans

SMS available SIM

¥ 4400 ~

  • 25GB/month, FREE shipping
  • docomo SIM, SMS avaiable
  • Monthly contract
See Plans

Unlimited Prepaid SIM

¥ 3900 ~

  • Unlimited Data
  • High-speed docomo Network
  • No return, Free Shipping
See Plans

Rental SIM

¥ 138 ~

  • 200MB/350MB
  • SIM card Holder and SIM Pin
  • The Secure Option
See Plans

690 JPY