2025年 July

10 Best simカード in 日本

Last Updated - 19/07/2025

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Best Choice
01

ＤＸＨＵＢ

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Docomo Line, 365 Days 100 GB Prepaid SIM, For Domestic Use, 4G/LTE Compatible, Data Communication, Physical SIM, Large Capacity, Sim-Free Terminal Support, 3-in-1 (Standard/Micro/Nano
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

[Aggressive Multi-lingual Customer Support] (Japanese, English, China, Tieng Viet)) We accept a variety of inquiries
The schedule of the SIM card is written on the product packaging. Once opened within the deadline, it can be used in the plan period of purchase
Temporarily large amounts of data may result in control of the communication speed from a fair view
Product Overview: This product is a SIM card for data transmission in Japan. It can be used immediately after setting it, and it takes about 10 minutes to complete opening! No credit card registration or bank account registration required. No office fees; Disposable SIM so there is no need for cancellation or returns. ◆Same day shipping on orders before 14:00 and shortest next day delivery! Please note that SMS and phone functions are not available
In order to deliver your luggage accurate and quickly, please provide us with information such as the delivery address in hotels or accommodations
Compatible with various devices: Can be used with SIM free devices such as Android or iOS (iPhone, iPad-SIM models), or docomo SIM lock devices (smartphones, wifi routers, tablets, etc.). (SIM adapter / SIM pin included)

￥15,580
02

KNTBROS

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

[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
03

ワイヤレスゲート

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NTT docomo Prepaid SIM Card, 10 GB, 180 Days with SIM Pin, Data Communication Dedicated Prepaid SIM, 4G/LTE Compatible, Multi-Cut Sim (Standard/Micro/Nano) Same Day Use, Rechargeable, Data-Only 10 GB
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

Package Includes: Multi-cut sim card / SIM pin / Instruction manual (English language not guaranteed) This product is a PLU TO GO pre-paid SIM. Simply plug the SIM into your device and start communication by setting the simple APN setting. In addition, the multi-language manual and Japanese customer support is provided, so you can use it with peace of mind even for overseas users
Depending on the model you use, it may not be compatible with your device, so please check in advance. If you use an iOS device, other cheap SIM settings may cause communications to be conflicted and unconnected. In that case, the APN profile must be removed
Compatible frequency bands are: [4G] Band1 (2,100MHz), Band3 (1,800MHz), Band8 (900MHz), Band28 (700MHz) [3G] 2,100MHz, 900MHz
Compatible Devices: Can be used with devices that have been unlocked and SIM free devices. However, it will not work with Docomo lock devices. Any device with tethering function can separate data and share high-speed communication
(Supports App Calls) Phone calls cannot be performed with phone numbers, but you can use apps such as LINE or Skype
(SIM Card Size and Support) This SIM card is compatible with 3-in-1 sizes, and can be easily divided according to the cut lines and according to the size you use. Furthermore, Japanese customer support is provided, and we provide 24/7 support in Japanese, English, and Chinese. Can be used with peace of mind even for temporary return to Japan, telework, or for foreigners
(About the card expiration date) The expiration period is 10 months after the date of purchase, and you must start using it within 10 months of purchase, even if you are unopened. It will last up to 180 days when you start using it. This SIM card is capable of 4G high-speed data transmission, and provides 10GB of data transmission. Available in Docomo powerful radio area for comfortable use

￥1,980
Best Value
04

Nippon SIM
20% Off

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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
9.6

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

[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 ￥2,480 20% Off
05

accfe

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プリペイドSIM 日本 10GB 大容量ソフトバンクプリペイドSIMカード日本国内用 SIMカード Softbank Prepaid SIM プリペイドデータ専用 4GLTE対応 japan (tfn-sim-10g)
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

Prepaid SIM Japan Soft Bank 10 GB Japanese SIM Card Prepaid SIM Card Prepaid SIM Prepaid SIM Prepaid for Data Only 4G LTE Compatible with Japan Contract Not Required, Easy Large Capacity APN Setting Required
Expiration Date: 12/05. The expiration date is written in the instruction manual (English language not guaranteed). No Limit of Usage Days: With the SIM expiration date, you can use the high speed data capacity up to 10 GB. Utilizing SoftBank's circuits for stable area and speed and tethering. Limit on Daily Communication Rate: You can use unlimited data capacity limits. *Limit to the maximum SIM card data communication
4G LTE Compatible Bands: Band 1 (2,100 MHz), Band 3 (1,700 MHz), Band 8 (900 MHz), Band 41 (2,500 MHz), WCDMA (3G) Compatible Band1 (2,100 MHz), Band 8 (900 MHz)
(Safety Desk in 3 Languages) 24/7 support window, not only Japanese but also English/Chinese. (Japanese support 9:00 to 18:00 on weekdays) in Japanese, English, Chinese
(Safe Softbank Communication) Compatible with Soft Bank, 4G LTE. *Prepaid SIM card is a SIM free (unlocked SIM) smartphone or tablet. Not compatible with SIM locked devices. The transmission speed may vary depending on the device used. For those other than LTE areas, it can communicate with 3G. Softbank Line Softbank Line Softbank

￥2,052 ￥2,280
06

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
9.3

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
07

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)
9.2

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

[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
08

KNTBROS

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Softbank prepaid sim Japan Softbank 10GB sim for prepaid data 4G LTE sim with pin / prepaid sim 10gb japan with sim pin
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

[Capacity/Days] 10 GB / Can be used up to expiration date. Japan domestic only/stop when 10 GB data capacity is reached. Non-rechargeable
Works with smartphones, tablets, routers and more When using in Japan, please use the device with a technical compliance mark
We have an inquiry window with LINE that can support 365 days. We can help you solve any problems and other problems. (Multilingual Support)
Phone calls can be answered via the app: Although you cannot make calls with your phone number, you can also make voice calls with Line, Skype, etc. No one-day data usage restrictions or slow internet connections
No APN Setting Required: Just plug the SIM into your ios (iPhone) device. (Android device requires APN setting)
It can be used with SIM rerouters other than smartphones, if it is compatible with the following frequency bands: Band 1, band 3, band 8. *There are cases where 3 are required
Expiration Date: December 23, 2024
(Soft Bank Direct Line for Fast Stable Communication) With the expiration date of SIM, you can use the SoftBank 4G LTE high-speed data capacity up to 10GB. Unlike cheaper SIM rental lines, it uses a straight line so you can use it in a stable area and speed and tethering
(Capacity Testable) You can check the amount of communication used from the dedicated site. Multi-language manual and SIM card slot removal pin included

￥2,370 ￥2,590
09

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,
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

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

￥2,180
10

Nippon SIM

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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
8.8

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 simカード in 日本

Docomo Line, 365 Days 100 GB Prepaid SIM, For Domestic Use, 4G/LTE Compatible, Data Communication, Physical SIM, Large Capacity, Sim-Free Terminal Support, 3-in-1 (Standard/Micro/Nano

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

NTT docomo Prepaid SIM Card, 10 GB, 180 Days with SIM Pin, Data Communication Dedicated Prepaid SIM, 4G/LTE Compatible, Multi-Cut Sim (Standard/Micro/Nano) Same Day Use, Rechargeable, Data-Only 10 GB

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

プリペイドSIM 日本 10GB 大容量 ソフトバンク プリペイドSIMカード 日本国内用 SIMカード Softbank Prepaid SIM プリペイド データ専用 4GLTE対応 japan (tfn-sim-10g)

[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

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)

Softbank prepaid sim Japan Softbank 10GB sim for prepaid data 4G LTE sim with pin / prepaid sim 10gb japan with sim pin

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,

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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プリペイドSIM 日本 10GB 大容量ソフトバンクプリペイドSIMカード日本国内用 SIMカード Softbank Prepaid SIM プリペイドデータ専用 4GLTE対応 japan (tfn-sim-10g)