2004301-500 peopleTrading Company/Manufacturer/Service Company
Established brand
OEM manufacturer
ODM manufacturer
Product customization
Shipments
749
Key customer
IL JIN ELECTRONIC INDIA
Key market
Asia
Description
Joint Chinese Ltd, also known as J-Style, is a global pioneer and high-tech manufacturer of digital health wearables and medical devices, established in Dongguan, China, in 2004. With over 20 years of experience, the company operates as a manufacturer, trading company, and service provider, specializing in OEM, ODM, and contract manufacturing services. Joint Chinese Ltd employs between 301 and 500 people and boasts a robust R&D team of over 120 engineers, including PhD experts developing core AI algorithms. The company operates multiple factories, including a Shenzhen Wearable Production Base and a Hunan Medical Factory, with a total production area of 20,000 sqm and a monthly capacity exceeding 1,000,000 units. They offer a comprehensive range of smart health wearables and medical-grade products under the J-Style brand, including Smart Rings, Smart Bands, Smart Watches, Chronic Disease Monitoring Devices, and other smart health and personal care products. These devices integrate advanced sensors, low-power BLE, and medical-grade AI algorithms, supported by a cloud-based Digital Health Platform for real-time biometric analysis and AI-driven insights. Joint Chinese Ltd holds numerous certifications, including ISO 9001, ISO 14001, ISO 13485, RoHS, FDA, CE, FCC, BSCI, and HIPAA Compliance, ensuring medical-grade quality control. They provide full-stack R&D support, custom intelligent manufacturing, and end-to-end services from industrial design to app customization and cloud deployment. The company serves over 100 countries and regions, exporting to major markets across North America, Europe, Asia, and Australasia, and has partnered with global brands such as NTT Docomo, Honor, Meizu, Walmart, Amway, Target, Toshiba, Xiaomi, and LG.
JCVital 2358 Multifunction Health Monitoring Smart Bracelet Fitness Wrist Bands Smart Watch Smartwatches and Wearable Devices$49
JCRing X3 Black Health Monitor Smartring Lowest Price Second Generation Smart Ring Temperature tracker Titanium Wearable Device$35
JCVital V5 Black Health Monitor Wristbands Sport Smart Band Gadget Fitness Recovery Smart Bracelet Smartband Wearable Device$35
JCVital 2501 Black Smart Bracelets & Smart Bangles Smart Watch Bands & Accessories AI VO2 Max Health Smartband Wearable Device$30
JCVital Pink 2501 Smart Bracelet Heart Rate tracker Wristband Blood Health Smart Wrist Band Smartband Wearable Medical Device$30
JCVital 2501 Silver Smart Bracelet Ip68 Waterproof Smart Band Fitness Watch Wearable Device Own App Best Smartband Whitelabel$30
JCRing X3 Silver Titanium Smartring AI Medical Grade Glucose Monitoring Smart Ring bluetooth Wearable Device for Men Women 2025$35
JCRing X3 Silver Titanium Fitness Smartring ultra Thin Mobile Phone Health Tracking Smart Ring Oem Pcb Android Wearable Device$35
JCVital 2501 Silver Fitness Wearable Device Smart Watch Android Smartband Cheapest Smart Band Mood Smart Bracelet in Low Price$30
JCVital 2501 Silver Couples Smart Bracelets Watch Smart Band Watch AI VO2 Max Health Smartband Telehealth Smart Wearable Device$30
JCVital 2358 Black 4G Wifi Smart Bracelet Bluetooth Health Smart Watch Band GPS Wearable Device Sports Smartband Android and IOS$49
JCVital 2501 Black Safety Wearable Device for Sugar Monitoring Api Smart Bracelet Men Smartband Fitness Smart Band with Sdk 2025$30
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.
Private Label Beirun Aromatic Fruit Scrub Cream Bath Salt with Sugar for Chicken Skin and Dead Skin Removal Wholesale$0.98
OEM/ODM 92% Snail Mucin Repair Cream 100g Face Moisturizer Hydrating Repair Lotion for All Skin Types Including Dry Sensitive$2.03
Private Label 2.5% Retinol Face Cream with Hyaluronic Acid Vitamin E Glycerin Anti-Wrinkle Freckle Whitening Properties$1.8
Private Label 1.19oz (34g) X 4ea Real Deep Hydrogel Mask Korean Skincare Hydrating Overnight Pore Minimizing Bio-Collagen Face$1.5
Private Label Antiperspirant Deodorant for Women 2.6 oz Clear Gel Long Lasting Rose Scent Powder for Body$2.3
Private Label 24-7 Hydrating Day Night Cream Nourishing Moisturizer for Face Watermelon Apple Extract Maintain Skin Balance$1.5
Private Label Skincare Niacinamide Serum 1 Fl oz Face Lightening Moisturizing Skin Care Pore Minimizer Brightener$1.4
Private Label Organic Anti-Aging Face Serum 10% Niacinamide + 1% Zinc Hydrating Moisturizer Oil Control Pore Reducer Liquid Form$1.6
Quality Technology Industrial Co., Ltd.
🇨🇳 China
2008301-500 peopleManufacturer/Trading Company
OEM manufacturer
ODM manufacturer
Product customization
High-tech enterprise
Shipments
15
Key customer
VIZIN INDIA
Key market
Europe
Description
Quality Technology Industrial Co., Ltd. is a professional manufacturer and trading company established in 2008, specializing in the research, development, and production of wearable technology and consumer electronics. Based in the Bao'an district of Shenzhen, China, the company operates a 5,000-square-meter factory equipped with advanced machinery and six production lines. With a workforce of 300 to 500 employees, including a dedicated R&D team of over 50 specialists, the company provides comprehensive one-stop hardware and software solutions.
The company's extensive product portfolio focuses on smart wearable and fitness devices, including smartwatches for adults and kids, fitness trackers, smart bands, smart garments, smart rings, and sleep monitors. Additionally, they maintain expertise in digital products such as GSM mobile phones, AI translators, and portable media players. Quality Technology Industrial Co., Ltd. is a significant exporter, with 71% to 90% of its products reaching international markets and serving major global clients like Vodafone and Cosmote.
As a technology-oriented enterprise, the company offers robust OEM, ODM, and contract manufacturing services. Their operations are backed by an ISO 9001 certified quality management system, and their products comply with rigorous international standards, including CE, FCC, UL, CCC, and CB. By collaborating with leading electronic designers and adopting the latest technological innovations, the company ensures its products remain competitive and future-ready in the global consumer electronics market.
New Sport Watch Men Women Smart Watch Fitness Bracelet Android Connected Wearable Devices Smartwatch$12.35
Vogue Gadgets Smart Watch Sport Fitness Wireless Call Wearable Devices Sleep Quality Men Women Oem$32.5
New Arrival With Thermometer Latest Wearable Devices Unique Touch Screen Fitness Smartwatch Waterproof IP67 Smart Watch$12.35
Instant Real Time Dialog Translate 2.4''touch Screen Electronic Translation Device$68
Healthcare Monitoring ECG smart Band with open API SDK Supported Heart Rate Blood Pressure Monitor Call Reminder Smartwatch$13
Men Gifts AMOLED Smart Watch Bluetooth Call Waterproof Outdoor Sports Smart Watch Used Mobile Phones$14.58
Maxtop Stainless Steel Irrigation Glue Process Smart Ring Wearable Electronic Connected Rings Waterproof$10.84
Dongguan Hongfeng Smart Tech Co., Ltd.
🇨🇳 China
2020101-200 peopleManufacturer/Trading Company
OEM manufacturer
ODM manufacturer
Product customization
High-tech enterprise
Key customer
CHINA MOBILE
Key market
Europe
Description
Dongguan Hongfeng Smart Tech Co., Ltd. is a high-tech manufacturer and trading company based in Dongguan, China, specializing in the design and production of smart wearable devices and IoT solutions. Established with a focus on safety and health tracking, the company offers a comprehensive product portfolio that includes smartwatches, fitness trackers, GPS tracking bracelets for the elderly and children, smart rings, and mobile emergency SOS devices. Their expertise extends to advanced features such as fall detection, health monitoring, and system integration for lone worker safety.
Operating a factory with a monthly production capacity of 350,000 units, the company provides robust OEM and ODM services supported by an in-house R&D team of 50 engineers specializing in hardware, software, server, and app development. Their manufacturing excellence is backed by ISO 9001:2015, CE, RoHS, and EMC certifications, ensuring high quality and compliance with international standards. Beyond wearables, the company's diverse business scope includes IoT devices, virtual reality equipment, and Class I and II medical devices such as protective suits and masks.
With a workforce of over 100 employees and annual revenues exceeding US$30 million, Dongguan Hongfeng Smart Tech Co., Ltd. maintains a strong global presence, exporting over 80% of its production to more than 55 countries. They have established collaborations with recognized global brands such as Philips and Vodafone, positioning themselves as a reliable partner for professional smart technology projects and large-scale supply chain management.
Waterproof IP67 Nano SIM Card 4G GPS Smart Watch Heart Rate Monitor Fall Down Sensor Wearable Devices$58.9
Wearable 4G GPS Tracker for Seniors with SOS Button Fall Detection Pedometer Emergency Necklace$44.9
Long Standby Time GPS Tracking Device L15 SOS Alarm Fall Dectction Personal 4G GPS Locator for Senior$44.9
Portable GSM 4G GPS Tracker Waterproof Anti-lost Tracking Device for Spy Elderly Health Monitoring$44.9
Senior Alert System for Nursing Home Residential Care Facilities Fall Detection SOS Alert Telecare Device$46.9
K12 Indoor Elderly Iot System Beacon Ble Smart Tracking Device for Indoor Navigation Positioning Tracking$9.5
Water Resistance IP67 ABS Material IoT Device Ibeacon 13g Weight BT Connection Beacon$9.5
Home Alarm System for Elderly Patients SOS Call Fall Detection Remote Monitoring Devices$46.9
Elderly Remote Distress Device With Fall Detection Panic Button Smart Home Security Health Monitoring Alarm System$46.9
Elderly Care Tracker with GPS 4G SIM Card Support App Control SOS Fall Alert Real Time GPS Tracking Device$44.9
Indoor Positioning Tracking Device Ibeacon Programmable Ble Tag BT Beacon for Proximity Marketing$9.5
IoT Tracking Device Durable Real-time Usage Monitoring BLE 5.0 Ble Elderly Tracking Beacon Tag$9.5
Shenzhen Jingyun Iot Technology Co.,Ltd, established in 2017, is a manufacturer and service company based in Shenzhen, China, specializing in smart wearable devices and electronic components. With a workforce of 51-100 employees and a factory area exceeding 3000 square meters, the company operates a robust supply chain that includes investments in batteries, PCBA, and injection molds factories, alongside product assembly workshops. They offer comprehensive OEM and ODM services, encompassing product design, development, production, quality assurance, and sales. Their core product lines feature a diverse range of smart glasses (including AI, camera, video, and translation capabilities), smartwatches (with GPS, ECG, and blood glucose monitoring), smart rings, and smart bracelets. Additionally, they manufacture electronic components such as DC-DC modules, PCBAs, motor controllers, and LED control boards, and provide manufacturing services for injection molds, plastic parts, electronics assembly, and 3D printing. Shenzhen Jingyun Iot Technology Co.,Ltd holds ISO 9001 and ISO 14001 certifications, ensuring high-quality standards. They serve international markets, with key customer groups in Japan, Korea, Europe, and the United States, and have collaborated with brands like Walmart, hhstar, and Miniso.
Customized Components Compass Calories Sport Mode Smartwatch LED Lighting Fashion Sports Watch Smart Watch Sport Bracelet$13
OEM Custom Man Men Round Business Fashion High End 1.43inch Fitness and Sleep Monitoring High-End Bluetooth Calling Am100 Silicone Bracelet$15.5