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B2B smart wearable manufacturer

Shenzhen ZhiLianShengYa Electronic Technology Co., LTD

Shenzhen Zhilian Shengya Electronics Technology Co., Ltd., founded on September 22, 2017, is headquartered on the 5th floor of Building B, Huawan Industrial Park, Bao'an District, Shenzhen. It is a high-tech enterprise integrating industry and trade, dedicated to the research, design, manufacturing, and sales of smart wearable products. It provides customized whole machine design and delivery; hardware research and development; software development; ODM and OEM services and related core technology fields.

Explore products OEM & ODM services
  • International R&D team focused on smart wearable innovation and frontier technology
  • End-to-end expertise in hardware design, firmware, sensors, and companion apps
  • Certifications include CE, RoHS, FCC, UKCA, and related regional marks
  • Shipped to 100+ countries — trusted by brands, distributors, and channel partners

Catalog

Hot Selling Products

Representative models — specifications aligned with typical B2B smartwatch lines.

ZL02PRO

Bluetooth Calling SmartWatch

ZL02PRO

RTL8763EWE 1.39 inch 360*360 Heart Rate SensorHRS3600 Battery 200MA Charging time 2.5-3h Compatible OS:IOS 9.0+ ,Android 5.0+

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ZL54 Calling Smartwatch

Bluetooth Calling SmartWatch

ZL54 Calling Smartwatch

RTL8763EWE 1.83 inch TFT240*284 Bluetooth 5.1 One-pair to bluetooth calling 100+ sports modes App: Dafit

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ZL40 AMOLED Calling

Bluetooth Calling SmartWatch

ZL40 AMOLED Calling

SF551-QFN+ BK3296 1.43 inch 466*466 IP67 Dafit APP Battery 220mAh Bluetooth 5.1 HeartRate HX3690

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ZL77 Calling Smartwatch

Bluetooth Calling SmartWatch

ZL77 Calling Smartwatch

RTL8763EWE 2.02inch 240*296 IP68 Dafit APP Battery 230mAh Standby 10-15days Using 5-7days

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Browse more products

What we do

End-to-end wearable solutions

ZhiLianShengYa supports brands and distributors from product definition through manufacturing, certification support, and after-sales technical coordination.

  1. Smartwatch R&D

    Industrial design, firmware, and feature sets for AMOLED, calling, and sport watches.

  2. Bluetooth wearables

    Stable BLE pairing, low-power profiles, and companion apps for bands and watches.

  3. Product engineering

    End-to-end engineering from prototype validation to scalable production, guided by our R&D team in Shenzhen.

  4. Companion apps

    White-label iOS and Android apps with branding, localization, and OTA support.

  5. Certified quality

    CE, RoHS, FCC, and related compliance paths for global distribution.

  6. OEM & ODM

    From catalog white-label to co-developed SKUs with flexible MOQs.

ZhiLianShengYa manufacturing and quality control

Facility

Manufacturing you can audit

Our Shenzhen facility combines R&D labs, SMT lines, assembly, aging tests, and packaging. Every batch follows incoming inspection, functional testing, and spot checks before shipment.

Whether you need a fast white-label launch from our catalog or a fully customized ODM program, we align engineering, production, and app teams under one project plan.

About our company →

  1. R&D & platform selection

    Define chipset, display, sensors, and firmware scope against your target price and market.

  2. Prototyping & validation

    Engineering samples, app pairing demos, and design sign-off before tooling.

  3. Pilot production & QA

    Small-batch runs with incoming inspection, functional test, and reliability checks.

  4. Mass production & logistics

    Stable capacity, traceable batches, and export-ready packaging for your channel.

Markets we serve

We work with partners who need reliable Bluetooth smart wearables at scale—from first SKU validation to recurring replenishment orders.

  • Consumer electronics brands
  • Telecom & mobile operators
  • Corporate wellness programs
  • Sports & fitness retailers
  • E-commerce & marketplace sellers
  • Gift & promotional distributors

OEM & ODM for your brand

Customize hardware, firmware, packaging, and companion apps under your brand. Our OEM & ODM team supports MOQ planning, sample schedules, and certification paths for your target regions.

Learn about OEM & ODM →

Compliance

Certificates

ZhiLianShengYa is certified and approved by renowned brands, ensuring our smartwatches perform at their best.

Industry Insights

Engineering guides & market intelligence

In-depth articles on display technology, waterproof design, health sensors, and export trends — from our R&D team.

View all insights →

Health & Sensors

Overseas Smartwatch Health Monitoring: Heart Rate & Sleep Technology and Accuracy Optimization

4 min read

Engineering & Durability

How Wearables Achieve True IP68 Waterproofing: A Process & Engineering Breakdown

4 min read

Display Technology

Smartwatch Display Selection in 2026: AMOLED vs TFT — Deep Comparison & Cost Analysis

4 min read

Support

FAQs

Most common questions before starting a project.

Our testing process is very strict. First, we will use the raw materials for testing, and only after they pass the test, will they be shipped. Third, the customer confirms the sample, pays the deposit, and formally places the order. Fourth, we arrange production and delivery.

We have been cooperating with the transport company for 5 years. We can complete the transportation for you by ship, rail or air. Generally, air transport is fast and the transportation time is only 7-10 days. If you choose ship transportation, the transportation time is 30-60 days, but the cost of ship transportation is low.

Yes, we can provide samples for inspection, and our minimum order quantity for mass production is 3,000.

Samples need 3-5 days, mass production needs 3-4 weeks with additional order quantity.

Under normal circumstances, we maintain 20 production lines in operation and can produce 30,000 smart watches every day. If the delivery date is tight, we can quickly increase the number to 15 production lines in 7-14 weeks depending on our models. After all, we are fully equipped.

We hope you can identify with our products and brand. Together we can expand our market. You should have certain financial and customs clearance strength, as our cooperation is usually cross-border or cross-regional. We expect you to have your sales channel and your own marketing team, sales team and after-sales service team.