01 | NEW · SIM-FREE
New SIM-Free Smartphones
New models from ZTE, Xiaomi, Samsung, and OPPO. Check each listing for features and network compatibility.
C.T.S Co., Ltd. — New SIM-Free Smartphones & Used Laptops
New SIM-Free Smartphones & Used Laptops
For everyday life and work,
new phones & used laptops.
Find a device that fits.
Shop new SIM-free smartphones and used laptops. Check each product page for its price, specifications, and condition.
C.T.S DEVICE LINEUP
Smartphones & Laptops Lineup
Review each product’s price, specifications, and condition. Contact customer care to request actual device photos.
All Smartphones & Laptops
Browse new SIM-free smartphones and used laptops.
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WHY CHOOSE C.T.S DEVICES
3 Reasons Customers Choose C.T.S Devices
Compare new SIM-free smartphones and used laptops using the details provided for each product.
02 | USED LAPTOPS
Ask us about a laptop’s condition
Our selection includes Dell Latitude, HP EliteBook / ProBook, Lenovo ThinkPad, and Surface models. Contact customer care before purchase to request actual photos.
03 | MULTILINGUAL SUPPORT
Questions before you buy?
Contact customer care about a model, its specifications, or its condition before ordering.
Choose from new SIM-free smartphones and used laptops with product details available for each item.
C.T.S Device & Telecom Store
DEVICE FREQUENTLY ASKED QUESTIONS
Device FAQ
Answers about SIM-free smartphones, used laptop condition, and how to request actual device photos.
Q1 Are the smartphones new and SIM-free?
Yes. The smartphones listed are new and SIM-free. Network compatibility and usage conditions vary by model; check each product page.
Q2 Can I see actual photos of a used laptop?
Contact customer care before purchase to request actual photos. Please tell us which model you are interested in.
Q3 Where can I check a used laptop’s condition and specifications?
Condition and specifications vary by product. Review the product listing and contact customer care before purchase if you have questions.
Q4 Can I ask questions about a device before buying?
Yes. Contact customer care with questions about a model, its specifications, or its condition.
Q5 Can I use a device with a C.T.S SIM or eSIM?
Compatibility depends on the device and plan. Contact us with the model name before choosing a plan.
Q6 Can I get help choosing a device?
Yes. Tell us how you plan to use it and which specifications you need in the inquiry form.
DEVICE QUESTIONS & CONSULTATION
Ask us about smartphones and laptops
Contact customer care before purchase about model selection, specifications, condition, or actual device photos.
- New SIM-free smartphones
- Used laptops
- Ask customer care for actual photos and condition details
- Ask about using a device with a SIM or eSIM plan
- Send an inquiry in Japanese, English, or Vietnamese
Device Inquiry
Enter your contact details, the model you are interested in, and your question.