C.T.S 株式会社

SoftBank ซิมการ์ดญี่ปุ่น – อินเทอร์เน็ตไม่จำกัด 4G LTE｜แบบเติมเงินรายเดือน｜ไม่มีสัญญาผูกมัด｜High-Speed Internet – จัดส่งรวดเร็ว

sim

¥7,980 ¥15,000

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Pay with VISA Mastercard JCB AMEX Konbini Bank transfer Cash on delivery

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จัดส่งฟรีทั่วประเทศญี่ปุ่น (เฉพาะสินค้าที่ร่วมรายการ)

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SoftBank อินเทอร์เน็ตไม่จำกัด SIM Card – Monthly Plan

Initial Fee: ¥7,980 (includes registration fee + first month usage)
Monthly Fee: ¥4,980 (tax included, payment required between the 20th and 25th of each month)

Enjoy unlimited 4G LTE data across Japan with the SoftBank SIM Card. Designed for travelers, international residents, and anyone who needs reliable, high-speed internet without a contract. Prepaid monthly billing makes it easy and flexible to stay connected.

✔ อินเทอร์เน็ตไม่จำกัด – SoftBank 4G LTE network
✔ Prepaid monthly plan – ไม่มีสัญญาผูกมัด required
✔ Quick setup – plug & play, ready to use instantly
✔ Compatible with most smartphones, Pocket WiFi, and routers
✔ Wide nationwide coverage across Japan
✔ Easy online recharge available anytime
✔ Fast shipping – ready to use upon arrival

Pay today · รายเดือน ¥7,980

Online in 3 simple steps

No shop visit, no Japanese paperwork stress.

Order in 2 minutes

Pick your plan and pay by card, at a konbini, by bank transfer or cash on delivery.

Receive it at home

Your SIM arrives by post with a setup guide in English and Japanese.

Insert and go

Put the SIM in your phone or router, follow the APN guide, and get online.

What you get

NetworkSoftBank 4G LTE

High-speed data50GB per month

After 50GBSpeed limit may apply

Calls / SMSData only

SIM sizeNano / Micro / Standard

ContractNone

Monthly payment20th–25th of each month

Why choose C.T.S

C.T.S Data SIM

Typical contract plan

Contract

None

Often required

How to start

Delivered to your door

Visit a shop

Support language

English & Japanese

Mostly Japanese

Payment

Card, konbini, bank, cash

Card or bank account

General comparison. [Verify each row before publishing.]

Real people, real SIMs

Every order is packed by our team in Saitama.

Read all reviews

[Photo: team packing orders]

★★★★★

"A simple way to get connected in Japan."

C.T.S customer · Japan

★★★★★

"Clear setup and helpful support when I needed it."

C.T.S customer · Japan

[UGC: customer connected in Japan]

Questions before you buy

Still unsure? Our team answers in English and Japanese.

Chat on WhatsApp Messenger

When am I charged each month?

You pay ¥5,500 today, which covers activation and your first month. After that the plan is ¥2,850 per month (tax included).

What happens after I use 50GB?

Once you reach 50GB, your connection continues at a throttled speed until the next monthly cycle.

Which devices does it work with?

Compatible with SIM-free smartphones, mobile pocket WiFi devices and tablets supporting Japan LTE bands.

Can I pay in cash?

Cash payment is supported through the payment methods available at checkout.