Professional Smartwatch OEM/ODM Manufacturer | ISO Certified Factory | Fast Worldwide Shipping
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Who We Are

Htslong Technology is a premier OEM/ODM manufacturer specializing in the design, development, and production of smart wearable devices. Based in Shenzhen, China — the global hub of electronics manufacturing — we serve brands and distributors in over 50 countries worldwide.

Our product portfolio spans kids smart watches, health monitoring smartwatches, and fitness trackers. From entry-level to flagship models, we deliver solutions that combine cutting-edge technology with competitive pricing.

With a dedicated R&D team of 50+ engineers and a 5,000+ sqm manufacturing facility, we have the expertise and capacity to bring your wearable product vision to life — from concept sketch to mass production.

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R&D Excellence

50+ engineers covering hardware, firmware, app development, and industrial design under one roof.

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Modern Factory

5,000+ sqm facility with SMT lines, assembly lines, and testing labs. Monthly capacity: 200,000+ units.

Quality First

ISO 9001, BSCI certified. Multi-stage QC: incoming, in-process, 100% functional, and AQL sampling.

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Global Reach

Exported to 50+ countries. CE, RoHS, FCC, REACH certified for global market compliance.

International Standards

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ISO 9001

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BSCI

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CE

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FCC

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RoHS

Ready to Partner With Us?

Let's discuss how we can help bring your wearable product to market.

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