Find the Prepaid SIM Card That Fits Your Needs!

simsim

Foreign visitors to Japan have been increasing and many of them have complained that they were unable to find enough free wi-fi spots in Japan. Now there are quite many prepaid SIM card brands offering different packages for short-term visitors. Think about how much data you need or the period you need and find the one that suits your need.
*All information here are as of the day posted. Please check the updated information from each service's official website. Click on the service name and it is linked to their official website.

Tips

- All SIM cards here use the same network, which is NTT DOCOMO. Therefore, in terms of coverage, all are the same.
- The download speed is usually maximum 150Mbps. When the service offers better or lower speed than this average, it is stated in the Note column.
- The speed is "theoretical", and in reality it can be much slower. The speed also depends on the device and location.
- If you're looking for a SIM card that allows voice call, take a look at PAYG SIM from b-mobile. Currently, this is the only card that comes with voice. (2016.03.03 See our new post for updated info. Prepaid Data and Voice SIM Cards Sold in NARITA Airport)
- It is usually cheaper to buy a prepaid SIM card in Japan. There are companies abroad that are offering SIM card to be used in Japan but they are usually more expensive than the same quality SIM card sold in Japan.
- Before purchasing, check the compatibility of your device. You cannot get a refund even if the device was not compatible.
- To find out whether the device is compatible or not, check the specification of the model and see if it is able to connect to one of the following bands. Also, the device must be unlocked.
(CDJapan Rental's blog is helpful to find out more about compatibility. CDJapan Rental Blog)
- If you're not experienced with setting up a new SIM on a device, finding a rental SIM card service that offers a refund could be a safe option. Check out our post Compare SIM Card Rental Services for Tourists in Japan

7 days

Service Package Name Data Amount Usable Period Speed Restriction Price Top Up Note
b-mobile PAYG SIM 3GB Total use of 60min call or 3GB or 7 days whatever comes first Possibily after 1GB over 3 consecutive days 9980 No Voice 60min.(International&local). 200 yen (exc.tax) for delivery to airport post office.
PAYG Data SIM Total use of 3GB or 7 days whichiever comes first 4990 200 yen (exc.tax) for delivery to airport post office.
NTT Communications Prepaid SIM for Japan (OCN mobile ONE Prepaid SIM for VISITOR) Unlimited 7 days After 100MB a day 3218 No
BOJ mobile BOJ mobile Prepaid Data SIM card Unlimited 7 days After 100MB a day 2890 No
NEVIS Omotenasim 100MB a day 7 days N/A 2650 No
eConnect 100MB/day 7 days 100MB a day 7 days After 100MB a day 2800 No Free Telephone Interpretation Service (3 times)(Eng, Chi, Kor)

14 days

Service Package Name Data Amount Usable Period Speed Restriction Price Top Up Note
b-mobile VISITOR SIM (1GB Prepaid) 1GB Total use of 1GB or 14 days whatever comes first After 360MB over 3 consecutive days 3980 Yes
VISITOR SIM (14 days Prepaid) Unlimited 14 days Max.speed 300kbps
NTT Communications Prepaid SIM for Japan (OCN mobile ONE Prepaid SIM for VISITOR) Unlimited 14 days After 100MB a day 3780 No
Yodobashi Wirelessgate Prepaid SIM 1GB Total use of 1GB or 14 days whichever comes first Yes (Pls see website) 2980 Yes
BOJ mobile BOJ mobile Prepaid Data SIM card Unlimited 15 days After 100MB a day 3580 No
NEVIS Omotenasim 100MB a day 15 days N/A 2950 No
eConnect 100MB/day 15 days 100MB a day 15 days After 100MB a day 3100 No
U Mobile Just Right 15 Day Plan 1.5GB 15 days After 100MB a day 3218 No

30 days

Service Package Name Data Amount Usable Period Speed Restriction Price Top Up Note
So-Net Prepaid LTE SIM (Plan 1G) 1GB Total use of 1GB or 30 days whichever comes first N/A 3000 Yes
Prepaid LTE SIM (Plan 2.2G) 2.2GB Total use of 2.2GB or 30 days whichever comes first 4000
Bigblobe Biglobe Ninja SIM 1GB Total use of 1GB or 31 days whichever comes first N/A 2916 Yes Max. speed 225mbps
3GB Total use of 3GB or 31 days whichever comes first 4860
7GB Total use of 7GB or 31 days whichever comes first 7884
Yodobashi Wirelessgate Prepaid SIM 2GB Total use of 2GB or 30 days whichever comes first Yes (Pls see website) 3590 Yes
Telecom Square Wi-Ho Prepaid SIM 1GB Total use of 1GB or 30 days whichever comes first N/A 4500 Yes Free Telephone Interpretation Service up to 3 times (English, Chinese, Korean)
3GB Total use of 3GB or 30 days whichever comes first 6500
eConnect 100MB/day 30 days 100MB a day 30 days After 100MB a day 3800 No
1GB 1GB Total use of 1GB or 30 days whichever comes first N/A 4100 Yes
3GB 3GB Total use of 3GB or 30 days whichever comes first 4700
COMST Daily Plan Prepaid Unlimited 31 days After 110MB a day 3980 Yes
3GB Plan Prepaid 3GB Total use of 3GB or 30 days whichever comes first N/A
U Mobile Solid Use 30 Day Plan 3GB 30 days After 100MB a day 4298 No

45 days to 3 months

Service Package Name Data Amount Usable Period Speed Restriction Price Top Up Note
IIJ JAPAN TRAVEL SIM 2GB Total use of 1GB or 3 months whichever comes first After 360MB over 3 consecutive days 3700 No
So-Net Prepaid LTE SIM (Plan 3G) 3GB Total use of 3GB or 60 days whichever comes first N/A 5000 Yes
Yodobashi Wirelessgate Prepaid SIM 3GB Total use of 3GB or 60 days whichever comes first Yes (Pls see website) 3980 Yes
COMST 5GB Plan Prepaid 5GB Total use of 5GB or 90 days whichever comes first N/A 6980 Yes
Region: 
Event dates: 
Friday, June 26, 2015

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