Shenzhen Vanssa Technology Limited Company is a professional manufacturer and trading company based in Shenzhen, China, specializing in the R&D, production, and marketing of smart wearable devices. With over 10 years of industry experience, the company operates a production facility exceeding 3,000 square meters and maintains a monthly production capacity of 500,000 units. Their extensive product portfolio includes smart watches, smart rings, smart bands, TWS earbuds, and AI smart glasses, featuring advanced functionalities such as ECG monitoring, blood glucose tracking, Bluetooth calling, and specialized safety features for children and the elderly.
As a technology-driven enterprise, the company employs a dedicated team of hardware and software engineers who provide comprehensive OEM and ODM services, including firmware support, app design, and OS/ID customization. They maintain strategic partnerships with leading technology providers such as Realtek, Nordic, and Jieli. To ensure high product standards, the company implements rigorous quality control protocols, including PCBA inspections, 8-hour aging tests, 100% waterproof testing, and 30,000-cycle key life tests. Their commitment to innovation is reflected in the release of 2-3 new models every season.
Shenzhen Vanssa Technology serves a global market and holds multiple international certifications, including CE, RoHS, FCC, BIS, KC, and UKCA, ensuring compliance with diverse regional standards.
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Shenzhen KY Intelligent Digital Ltd.
🇨🇳 China
2010201-300 peopleManufacturer/Trading Company
OEM manufacturer
ODM manufacturer
Product customization
Patented technology
Shipments
3
Key customer
ACCUTIME
Key market
Asia
Description
Shenzhen KY Intelligent Digital Ltd. (also known as Shenzhen KY Technology Co. Ltd) is a high-tech manufacturer and exporter specializing in the development and production of smart wearable devices and consumer electronics. Established in 2010 and headquartered in Shenzhen, China, the company operates a production facility ranging from 3,500 to 6,000 square meters, supported by a workforce of over 200 skilled personnel. The company is a recognized OEM and ODM partner for international brands such as Wal-Mart, Polaroid, and Blaupunkt, maintaining a monthly production capacity of up to 800,000 units.
Their core product portfolio focuses on smartwatches, fitness trackers, and smart bracelets, including specialized models like GPS kids' watches and heart rate monitors. Beyond wearables, the company manufactures tablet PCs, sports cameras, VR boxes, and connected health devices such as Bluetooth blood pressure monitors. Their R&D team integrates advanced technologies, including low-power chip design and sensor integration, while collaborating with major IC suppliers like Rockchip, MTK, and Allwinner.
Shenzhen KY Intelligent Digital Ltd. maintains a rigorous quality management system with certifications including ISO 9001, CE, FCC, RoHS, and SEDEX. With annual export values reaching up to USD 100 million, the company serves a global market across North America, Europe, Southeast Asia, and Africa. Their business model integrates research, design, and manufacturing to deliver high-end, fashionable digital products to the international B2B market.
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Dart Cheng Communication Co., Ltd. is a professional manufacturer and trading company headquartered in Shenzhen, China, with a legacy in the consumer electronics industry dating back to 2001. The company specializes in the research, development, and production of innovative Bluetooth-related products and smart wearable devices. Its extensive product portfolio includes TWS earphones, Bluetooth headsets, smartwatches (including health-medical and 4G models), smart glasses, Bluetooth speakers, and various computer peripherals such as wireless keyboards and mice. Operating with a workforce of approximately 51 to 100 employees and a dedicated R&D center, the company provides comprehensive one-stop OEM and ODM services, covering everything from mold and circuit design to large-scale mass production. Dart Cheng Communication is committed to high quality standards, holding certifications such as ISO 9001, CE, FCC, BQB, and GMP. As a member of the Bluetooth SIG and the Radio Regulation and Frequency Planning in China (SRRC), the company emphasizes health-conscious and environmentally friendly manufacturing processes. With an annual revenue between US$5 million and US$10 million, the company maintains a strong international presence, exporting its products to major markets across North America, Europe, Asia, and South America.
Shenzhen Xingcanda Electronic Technology Co., Ltd. is a professional provider of consumer electronics based in Shenzhen, China. Established in 2021, the company operates a 550-square-meter facility and has quickly grown to achieve an annual sales revenue exceeding USD 1,000,000. The company specializes in a wide range of 3C accessories and smart devices, including smartwatches, fitness trackers, wireless earbuds, Bluetooth speakers, and comprehensive charging solutions such as PD/USB chargers, solar power banks, and 3-in-1 magnetic wireless charging stations. Their product portfolio also extends to mobile phone accessories like tempered glass, cases, and high-quality cables. Shenzhen Xingcanda Electronic Technology Co., Ltd. is highly export-oriented, with 100% of its output reaching international markets across North America, South America, Europe, Asia, and Australasia. The company offers robust OEM and ODM services, catering to listed companies and retail supermarkets with customized product development and value-added services like packaging design with barcodes and heat shrink filming. Committed to quality and compliance, their products carry CE and RoHS certifications. With a workforce of approximately 11 to 50 employees, the company provides technical support and quality assurance, positioning itself as a reliable partner for global businesses seeking competitive consumer electronic solutions.
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Shenzhen Songxing Technology Co., Ltd.
🇨🇳 China
2011501-1000 peopleManufacturer/Trading Company
High capacity factory
OEM manufacturer
ODM manufacturer
Product customization
Shipments
3
Key customer
DANIYAL ENTERPRISE
Key market
North America
Review
4.7
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Shenzhen Youhong Technology Co., Ltd.
🇨🇳 China
2004301-500 peopleManufacturer/Trading Company
Established brand
OEM manufacturer
ODM manufacturer
Own brand
Key customer
HONOR
Key market
Africa
Description
Shenzhen Youhong Technology Co., Ltd., also known as Jointcorp (J-Style), is a global pioneer in digital health wearable technology and medical device solutions. Established in 2004 and headquartered in Shenzhen, China, the company operates as a high-tech manufacturer and trading entity with a workforce of 301 to 500 employees. They specialize in the research, development, and production of smart wearable devices, including smart rings, smartwatches, fitness trackers, and chronic disease monitoring instruments. Their integrated digital health solutions leverage advanced biosensors, AI-driven algorithms, and cloud-based platforms for real-time biometric analysis.
The company maintains a robust manufacturing infrastructure across multiple facilities totaling 15,000 square meters, featuring in-house capabilities for molding, plastic injection, SMT, and final assembly. With a monthly production capacity exceeding 1,000,000 units, they provide comprehensive OEM and ODM services to global clients, including major brands like NTT Docomo, Honor, and Meizu. Their product portfolio extends beyond wearables to include smart electric toothbrushes, beauty care devices such as microdermabrasion machines, and medical-grade equipment like blood pressure monitors and sleep quality trackers.
Shenzhen Youhong Technology is committed to international quality standards, holding numerous certifications including ISO 9001, ISO 13485, ISO 14001, BSCI, SEDEX, FDA, CE, and FCC. With over 20 years of industry experience and a strong R&D focus supported by technical patents, the company exports its products to over 100 countries, with primary markets in North America and Europe.
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