2025年 July

10 Best prepaid in 日本

Last Updated - 20/07/2025

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Best Choice
01

KNTBROS

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Docomo Prepaid SIM Unlimited 30 Days Japan sim Prepaid Data Only/sim card japan unlimited prepaid
9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

[Capacity/Days] Unlimited/ 30 days after APN settings; Japan only
Open Date: Open by November 30, 2024. Can be used for 30 days after opening
(docomo's NVNO Line) With the expiration date of the pre-paid SIM can be used with unlimited capacity. No one-day limitations. Tethering is also available
(Help Desk with 3 Languages) Supports 365 days of Japanese, English, and Chinese phone windows that are safe for those who temporarily return to Japan and foreign people who visit visit. Phone number is included in the instruction manual
(Disposable type without verification) No need to worry about the creca or account. You can use it by setting APN on the day you receive it. When using in Japan, please use the device with a technical compliance mark

￥3,590
Best Value
02

KNTBROS

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Docomo Prepaid SIM Japan 25 GB 90 days sim Prepaid Data Dedicated 4G LTE Physical SIM/prepaid sim 25gb 90days japan travel (25GB/90 days)
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

[Stable communication via docomo line] With the expiration date of the pre-paid SIM, the docomo 4G LTE high-speed data capacity up to 25GB. The area and speed are stable and can be used in tethering
[Capacity/days] 25 GB (can be used at low speed 32 kbps after exceeding capacity/90 days after APN setting
Opening date: Open by January 31, 2025. Can be used for 90 days after opening
It can be used with SIM rerouters other than smartphones, if it is compatible with the following frequency bands: Band 1, band 3, band 19. *There are cases where 3 are required
(With SIM pin) Uses Japanese IP
(Help Desk with 3 Languages) Supports 365 days of Japanese, English, and Chinese phone windows that are safe for those who temporarily return to Japan and foreign people who visit visit. Phone number is included in the instruction manual
(Disposable type without verification) No need to worry about the creca or account. You can use it by setting APN on the day you receive it. When using in Japan, please use the device with a technical compliance mark

￥3,280
03

bigconnect

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Docomo SIM Card, For Domestic Use, 10 GB, 180 Days Valid, Genuine Docomo Carrier, 4G-LTE High Speed Connection, Prepaid SIM Card, Japan Docomo Preaid Data SIM / 180 Days 10 GB, 4G LTE Data,
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Feature 5: (Phone calls with app) You cannot make calls with your phone number, but you can also use voice calls with Line, Skype, etc. PLU TO GO SIM (no need to settle for settings, if you plug the SIM into the device and it will start communication). Multi-language manual included. Complete Customer Support!
Feature 4: Japanese customer support. We offer a 24-day customer support for those who temporarily return to Japan, for telework, or for those who visit
Feature 3: Carrier: IIJDocomo. SIM Size: 3 in 1 size (It has a thin cutout, so you can extract it to fit the size you use. You may not be able to fail, but please note that the warranty is not provided.)
Feature 2: SIM unlock terminal / SIM free terminal *Docomo lock terminal cannot be used. If the device uses a tethering function, you can share data communication and use high speed communication. Frequency Band: [4G] Band1 2,100 MHz Band3 1,800 MHz Band8 900 MHz Band28 700 MHz [3G] 2,100 MHz 900 MHz *May not be available depending on the model. If you use ios, you may not be able to communicate with other cheap SIM card settings that are saved. You need to remove the cheap SIM APN profile
Feature 1: Card expiration date: 10 months after purchase (when unopened), can be used for up to 180 days after the first time of use. Prepaid SIM card that can be used for 4G high-speed data transmission. 10 high-speed data, effective for 180 days. Docomo Prepaid SIM Card with strong signal Please enjoy this item

￥2,190
04

bigconnect

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Sim for Japan SIM 360 Day 10 GB Prepaid SIM Card Rakuten Carrier Dedicated Data Communication No Contract Required with SIM Pin Multilingual Support (Japanese, English, Chinese, Korean) (10 GB for 360
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Rakuten Carrier: This is a data dedicated SIM card that uses the Rakuten network and supports 5G even in pre-paid mode. 4G and LTE are also available. When using a Prepaid SIM card, you will need a SIM free smartphone or tablet that has been unlocked to the device. Not compatible with SIM locked devices. The transmission speed may differ depending on the device used
Phone calls using the app: You cannot use the phone number, but you can also use the LINE or Skype voice calls. Use PLU TO GO SIM card (insert SIM and start communication immediately)
No contract required: No pre-paid sim opening or activation required; No contract required; No complicated procedures such as credit cards or bank accounts. Simply set the APN on the day you receive it and use it. The frequency band is compatible with [5G] Band1, [4G] Band1, Band3, Band8
No Expiration Date: The high-speed data capacity can be used up to 10 GB. (Usage Period: 360 days from the date that the SIM card is inserted and set the data. There is no limit on the amount of communication per day, but the data capacity is limited. *Communication will stop if the data capacity is exceeded 360 days or 10 GB
Japanese Customer Support: We offer customer support in Japanese, English, Chinese, and Korean that is safe for those who temporarily return to Japan, teleworkers, and foreign visitors

￥1,880
05

アーモンド　ＳＩｍ　ｃａｒｄ

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[Japan sim] Japan Prepaid SIM [360 Days 10GB] Large Capacity Genuine RAKUTEN Line Strongest Rakuten Plan Data Dedicated 4GLTE 5G Compatible Prepaid SIM Card for Japan SIM Card Prepaid SIM Prepaid (360
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

The Strongest Rakuten Plan: This is a data-specific SIM card that uses the Rakuten network and supports 5G prepaid! 4G and LTE are also available. The frequency band is compatible with [5G] Band1, [4G] Band1, Band3, Band8. Reliable and reliable to use with confidence
High Speed Network: 10GB high-speed data can be used within 360 days. There is no daily communication restrictions, but the data capacity is limited, and if more than 10GB, it will temporarily stop communication
Easy Setting: Connect to the net by simply setting the APN setting. Easy to follow Japanese instruction manual included
Contract Not Required, Disposable: No contract needed; No need to check the identity or return required; No complicated procedures such as credit cards or bank accounts
Compatible Devices: SIM free and unlocked terminals are required. Supports Nano SIM/Micro SIM/Standard SIM
(Safe Support) We provide Japanese and English customer support in Chinese. Any other setup methods or FAQs, please feel free to contact us via LINE! LINE ID: @014hhnww
(Expiration Date) The final use date is May 31, 2025. Start using it within the expiration date. (Usage Period: 360 days from the date that the SIM card is inserted and set up the data

￥1,980
06

bigconnect

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Japan Prepaid SIM 360 Days 20 GB Large Capacity Rakuten 5G 4G LTE Compatible Prepaid SIM Card for Japan Domestic SIM Rakuten Prepaid SIM Prepaid SIM Dedicated Data Japan Prepaid SIM 5G 4G LTE Prepaid
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

[Strongest Rakuten Plan] Data dedicated SIM card uses Rakuten network and supports 5G prepaid too! 4G and LTE are also available. When using a Prepaid SIM card, you will need a SIM free smartphone or tablet that has been unlocked to the device. Not compatible with SIM locked devices. The transmission speed may differ depending on the device used
Phone calls using the app: You cannot use the phone number, but you can also use the LINE or Skype voice calls. Use PLU TO GO SIM card (insert SIM and start communication immediately)
Japanese Customer Support: We offer customer support in Japanese, English, and Chinese, which is safe for those who temporarily return to Japan, teleworkers, and foreign visitors
Expiration Date: Final start date: December 31, 2025. The data capacity can be up to 20 GB within the expiration date of the SIM card. When 20GB of data runs out, the communication will stop. (Usage Period: 360 days from the date that the SIM card is inserted and set the data. ) and high-speed data transmission up to 10GB. When the month use exceeds 10GB, the maximum communication speed will be reduced to 256 kbps until the end of the month (this slow speed data is not included in the 20GB plan, it is unusable). The speed limit will be automatically released on the next day of the month. In addition, if the data is used for a total of 20 GB, the communication will be stopped
(High Standard Communication Quality) Among the 4 major carriers, it has earned the highest communication quality in the industry in the widest region. Rakuten Mobile has continuously improved communication quality. The frequency band is compatible with [5G] Band1, [4G] Band1, Band3, Band8. *Please use this SIM card on devices that do not have SIM lock. Please note that it cannot be used with SIM locked devices
(Disposable, No Need to Confirm Identity) No complicated procedures such as credit cards or bank accounts required. Simply set the APN on the day you receive it and use it

￥2,680
07

bigconnect

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[Japan sim] Japan Prepaid SIM 360 Days 20 GB Large Capacity Genuine Rakuten Carrier Use Prepaid SIM Card for Japan SIM Card Prepaid SIM Prepaid Data Only 4 GLTE Compatible (360 Days 20GB (Rakuten
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

[Strongest Rakuten Plan] Data dedicated SIM card uses Rakuten network and supports 5G prepaid too! 4G and LTE are also available. When using a Prepaid SIM card, you will need a SIM free smartphone or tablet that has been unlocked to the device. Not compatible with SIM locked devices. The transmission speed may differ depending on the device used
Phone calls using the app: You cannot use the phone number, but you can also use the LINE or Skype voice calls. Use PLU TO GO SIM card (insert SIM and start communication immediately)
Japanese Customer Support: We offer customer support in Japanese, English, and Chinese, which is safe for those who temporarily return to Japan, teleworkers, and foreign visitors
Expiration Date: Final start date: May 31, 2025. Please start using this product within the expiration date. The high speed data capacity can be used up to 20 GB. When the high speed 20GB data runs out, the communication will stop. (Usage Period: 360 days from the date that the SIM card is inserted and set the data. ) and high speed data transmission up to 10GB. When the month use exceeds 10GB, the maximum communication speed will be reduced to 256 kbps until the end of the month (this slow speed data is not included in the 20GB plan, it is unusable). The speed limit will be automatically released on the next day of the month. In addition, if the data is used for a total of 20 GB, the communication will be stopped
(High Standard Communication Quality) Among the 4 major carriers, it has earned the highest communication quality in the industry in the widest region. Rakuten Mobile has continuously improved communication quality. The frequency band is compatible with [5G] Band1, [4G] Band1, Band3, Band8
(Disposable, No Need to Confirm Identity) No complicated procedures such as credit cards or bank accounts required. Simply set the APN on the day you receive it and use it

￥2,680
08

Nippon SIM

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Prepaid sim Japan SIM Card 180 Days 10 GB SIM Docomo Communication Network Dedicated 4G LTE 3 in 1 (Standard/Micro/Nano) Sim-Free Compatible with Devices Only Multilingual Manual Included Safe Support
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

[Setting Method] Remove the IC part of this SIM card and insert it into your device. Android device: Please set APN information on your device. iPhone/iPad: Just plug in SIM card. Basically, it is set automatically. If you do not set it automatically, please follow the instructions to set the APN. If you use a cheap SIM, please remove the profile of the SIM beforehand
No troublesome contracts! Full Support: No activation, personal authorization, credit card registration, contracts, office fees, etc. DHA Corporation Ltd. is an MVNO (virtual mobile communication company, relocation number A-30-16419). We consistently offer support from sales to support; Supports Japanese, English, and Chinese. If you have any questions regarding the products or settings, please feel free to contact us
Final Start Date: 6/30 (JP 2025) When using in Japan, please use the device with a technical compliance mark. Please start using this product by the expiration date. It will not be usable once the expiration date has been over. (Usage Period: 180 days from the date of first data communication after inserting the SIM card and setting it. Please start using the SIM before the expiry date printed on package in order to enjoy the full duration.
Compatible Devices: SIM free compatible with iPhones, smartphones, Wi-Fi routers, tablets, 4G, and LTE compatible computers. Design available Compatible Devices: iPhone, iPad, smartphone, mobile WiFi router, tablet, LTE PC. Compatible frequency bands: 4G/LTE: Band 1 (2.1GHz), Band 3 (1.8GHz), Band 19 (800MHz), Band 21 (1.5GHz), Band 28 (700MHz), Band 42 (3.5GHz); 3G/W-CDMA: Band 1 (2.1GHz), Band 6 (80 GHz). 0MHz) / Band 19 (800MHz)
(High-speed communication with NTT Docomo communication net). 180 days 10 GB NTT Docomo communication net for a wide range of high-speed communications! Even if your purchase runs out of data, you can use it at a speed of up to 128 kbps for 180 days. Compatible SIM Size: Can be switched between standard, micro, and nano sizes; Product Package: SIM card, SIM pin, multi-language manual (English language not guaranteed)

￥1,980
09

PLUG TO GO
15% Off

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On Amazon

[Genuine RAKUTEN SIM] 360 Day 10 GB Large Capacity Japan Prepaid SIM 5G 4G-LTE Compatible Data Only No Contract Required Rakuten sim Japan Prepaid SIM (360 Days, 10GB)
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

No contract required: No pre-paid sim opening or activation required; No contract required; No complicated procedures such as credit cards or bank accounts. Simply set the APN on the day you receive it and use it
Data Capacity: High-speed data can be used up to 10 GB. Although there is no limit on the amount of communication per day, it can be used unlimited to the maximum data capacity
Compatible Devices: A SIM free unlock device is required. Supports Nano SIM/Micro SIM/Standard SIM Simply set APN to connect to the net. Phone calls and SMS cannot be used
(Usage Period) After inserting the SIM card and completing the setting, it is effective for 360 days from the date of the first data communication
(Strongest Rakuten Plan) Data dedicated SIM card that uses Rakuten network and supports 5G prepaid too! 4G and LTE are also available. The frequency band is compatible with [5G] Band1, [4G] Band1, Band3, Band8. Reliable and reliable to use with confidence
(24/7 Support) If you have any problems or questions, please feel free to contact us at LINE! LINE ID: @014hhnww (Japanese, English, Chinese)

￥1,598 ￥1,880 15% Off
10

Nippon SIM

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On Amazon

Softbank prepaid sim Japan Softbank 15 GB sim card prepaid multi-cut sim (standard/micro/nano), data communication only, 4G LTE sim free terminal only, manual included (English language not
8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

[Setting Method] Remove the IC part of this SIM card and insert it into your device. If it cannot connect automatically, please set APN information on your device
Compatible frequency bands: 4G/LTE: Band 1 (2.1GHz), Band 3 (1.8GHz), Band 8 (900MHz), Band 28 (700MHz), Band 41 (2.5GHz); 3G/W-CDMA: Band 1 (2.1GHz), Band 8 (900MHz)
Compatible SIM Size: Multi-cut (can be switched between standard, micro, and nano-sizes); Product Package: SIM card, SIM pin, multilingual manual
Compatible Devices: SIM free for iPhone, iPad, smartphone, mobile WiFi router, tablet, and LTE compatible computers. Tethering can be used
(Shelf Life: 12/19) Can be used from the date of first data communication to the expiration date. Cannot be used after the expiration date. When using in Japan, please use the device with a technical compliance mark
(High-speed communication with Softbank communication! Uses soft bank communication net; 15 GB LTE data transmission up to the expiration data. The service will be terminated if the LTE data is full

￥2,680

10 Best prepaid in 日本

Docomo Prepaid SIM Unlimited 30 Days Japan sim Prepaid Data Only/sim card japan unlimited prepaid

Docomo Prepaid SIM Japan 25 GB 90 days sim Prepaid Data Dedicated 4G LTE Physical SIM/prepaid sim 25gb 90days japan travel (25GB/90 days)

Docomo SIM Card, For Domestic Use, 10 GB, 180 Days Valid, Genuine Docomo Carrier, 4G-LTE High Speed Connection, Prepaid SIM Card, Japan Docomo Preaid Data SIM / 180 Days 10 GB, 4G LTE Data,

Sim for Japan SIM 360 Day 10 GB Prepaid SIM Card Rakuten Carrier Dedicated Data Communication No Contract Required with SIM Pin Multilingual Support (Japanese, English, Chinese, Korean) (10 GB for 360

[Japan sim] Japan Prepaid SIM [360 Days 10GB] Large Capacity Genuine RAKUTEN Line Strongest Rakuten Plan Data Dedicated 4GLTE 5G Compatible Prepaid SIM Card for Japan SIM Card Prepaid SIM Prepaid (360

Japan Prepaid SIM 360 Days 20 GB Large Capacity Rakuten 5G 4G LTE Compatible Prepaid SIM Card for Japan Domestic SIM Rakuten Prepaid SIM Prepaid SIM Dedicated Data Japan Prepaid SIM 5G 4G LTE Prepaid

[Japan sim] Japan Prepaid SIM 360 Days 20 GB Large Capacity Genuine Rakuten Carrier Use Prepaid SIM Card for Japan SIM Card Prepaid SIM Prepaid Data Only 4 GLTE Compatible (360 Days 20GB (Rakuten

Prepaid sim Japan SIM Card 180 Days 10 GB SIM Docomo Communication Network Dedicated 4G LTE 3 in 1 (Standard/Micro/Nano) Sim-Free Compatible with Devices Only Multilingual Manual Included Safe Support

[Genuine RAKUTEN SIM] 360 Day 10 GB Large Capacity Japan Prepaid SIM 5G 4G-LTE Compatible Data Only No Contract Required Rakuten sim Japan Prepaid SIM (360 Days, 10GB)

Softbank prepaid sim Japan Softbank 15 GB sim card prepaid multi-cut sim (standard/micro/nano), data communication only, 4G LTE sim free terminal only, manual included (English language not

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