C.T.S 株式会社

Buy SIM, eSIM & WiFi for Japan. Instant eSIM activation, free shipping, multilingual support. Trusted by 10,000+ customers. Plans from ¥460/month. Official SoftBank & Docomo partner.

Kawaguchi, Saitama, JP · prices in JPY · ships to 1 countries. Catalogue read from ct-s.jp's own public product feed on 2026-09-10. Every figure below is an observation from that feed, not an estimate.

Products
29
In stock
100%
Median price
5,500 JPY
Discounted
20
⌀ 19.6% off

Sales estimate

ct-s.jp does not publish stock levels. Units sold can only be derived from stock falling between two readings, so no revenue figure is possible for this store — by any method, not just ours.

Store facts

Products
52
counted in our crawl
First product
2024-09
oldest listing seen
Traffic rank
top 10,000k
Chrome UX bucket, not visits
Tracked by
0
requests on this page
Collections
7
Ships to
1 countries · JP

Brands carried

Matched on the store's own brand field, so these are exact — not guessed from product names.

C.T.S (29)

Products

ProductBrandPriceWasOff
SoftBank SIM Card Japan – Unlimited Data 4G LTE｜Prepaid Monthly Plan｜No Contract｜High-Speed Internet – Fast Shipping C.T.S 株式会社7980 JPY15,000 JPY−46.8%
Pocket WiFi Japan – GlocalMe U3｜Unlimited Data Router｜Prepaid Monthly Plan｜No Contract｜Global SIM-Free – Fast ShippingMy Store9900 JPY14,980 JPY−33.9%
[Brand New] nubia S2 Smartphone 6GB+128GB SIM-Free | Compatible with Japan Networks | High-Capacity Battery | High-Resolution Camera | Clean IMEI (Network Status: 〇) | COD Available | Free Shipping C.T.S 株式会社18500 JPY26,640 JPY−30.6%
Docomo SIM Card Japan – 50GB Data + Unlimited Calls, 4G LTE networkMy Store8000 JPY10,800 JPY−25.9%
Docomo SIM Card Japan – Unlimited 200Kbps speed + Call Number, 4G LTE networkMy Store4980 JPY6,500 JPY−23.4%
Pocket WiFi Japan – Speed WiFi DOCK 5G｜Unlimited DataMy Store9900 JPY12,500 JPY−20.8%
Home WiFi Japan – Speed WiFi HOME 5G L13 Router｜Unlimited DataMy Store9960 JPY12,500 JPY−20.3%
Speed Pocket WiFi 5G X12 Japan｜Unlimited Data RouterMy Store9960 JPY12,500 JPY−20.3%
Rakuten prepaid data SIM – 3GB/month, 4G LTE network, dedicated for internet accessMy Store6900 JPY8,200 JPY−15.9%
Rakuten prepaid data SIM – 7GB/month, 1-year plan, 4G LTE network, dedicated for internet accessMy Store9980 JPY11,800 JPY−15.4%
Docomo SIM Card Japan – 50GB Data + Call Number, 4G LTE networkMy Store5500 JPY6,500 JPY−15.4%
Docomo SIM Card Japan – 10GB Data + Call Number, 4G LTE networkMy Store5500 JPY6,500 JPY−15.4%
Docomo SIM Card Japan – 1GB Data + Call Number, 4G LTE networkMy Store5500 JPY6,500 JPY−15.4%
Docomo SIM Card Japan – 20GB Data + Call Number, 4G LTE networkMy Store5500 JPY6,500 JPY−15.4%
Docomo SIM Card Japan – 25GB Data + Call Number, 4G LTE networkMy Store5500 JPY6,500 JPY−15.4%
Docomo SIM Card Japan – 5GB Data + Call Number, 4G LTE networkMy Store5500 JPY6,500 JPY−15.4%
SoftBank SIM Card Japan – 10GB/Month × 12 Months｜Annual Prepaid Plan｜No Contract｜High-Speed Data – Fast ShippingMy Store15000 JPY17,500 JPY−14.3%
SoftBank SIM Card Japan – 1GB/Month × 12 Months｜Annual Prepaid Plan｜No Contract｜Light Data Use – Fast ShippingMy Store7500 JPY8,500 JPY−11.8%
Rakuten prepaid data SIM – Unlimited data, 4G LTE network, dedicated for internet accessMy Store7980 JPY8,980 JPY−11.1%
SoftBank SIM Card Japan – 5GB/Month × 12 Months｜Annual Prepaid Plan｜No Contract｜High-Speed Data – Fast ShippingMy Store9500 JPY10,500 JPY−9.5%
Pocket WiFi X200｜SIM-Free & Battery-Free Cloud WiFi Router｜3GB・30GB・100GB・300GBMy Store8400 JPY——
Pocket WiFi Japan – 100GB Data｜Prepaid Monthly PlanMy Store8000 JPY3,800 JPY—
Rakuten Japan eSIM Unlimited: Instant Unlimited 4G/5G Data | Quick & Convenient Activation C.T.S 株式会社6980 JPY——
SoftBank SIM Card Japan – 50GB/Month Data｜Prepaid Monthly Plan｜No Contract｜High-Speed 4G LTE – Fast ShippingMy Store5500 JPY3,200 JPY—
SoftBank Japan eSIM 50GB/Month: Instant 4G/5G Data | Fast & Convenient ActivationC.T.S 株式会社5500 JPY——
SoftBank Japan eSIM 100GB/Month: Instant 4G/5G Data | Fast & Convenient ActivationC.T.S 株式会社5500 JPY——
SoftBank SIM Card Japan – 100GB/Month Data｜Prepaid Monthly Plan｜No Contract｜High-Speed 4G LTE – Fast ShippingMy Store5500 JPY3,800 JPY—
SoftBank SIM Card Japan – 35GB/Month Data｜Prepaid Monthly Plan｜No Contract｜High-Speed 4G LTE – Fast ShippingMy Store5500 JPY2,900 JPY—
eSIM 台湾・香港・マカオ (Taiwan/HK/Macau) - 無制限プランC.T.S2550 JPY——
eSIM ベトナム (Vietnam eSIM) - 長期・大容量C.T.S1860 JPY——

Catalogue over time

DateProductsIn stockMedian price
2026-09-1047475,500 JPY
2026-08-0529296,900 JPY

Data collected from ct-s.jp's public product feed. Not affiliated with or endorsed by this store. Request removal.