In the competitive global smart wearable market of 2026, brands need more than just a contract factory — they need a full-stack technology partner capable of managing the entire product lifecycle.
Shenzhen Geyan Technology Co., Ltd., a professional smart wearable manufacturer based in China, specializes in custom smartwatch PCB engineering, smartwatch firmware development, SDK integration, and OEM/ODM private label manufacturing.
From hardware architecture to embedded system optimization and app deployment, Geyan Technology delivers true end-to-end smart wearable development solutions.
Whether you are a startup launching your first product or an established IoT enterprise expanding your portfolio, our integrated approach reduces R&D risks, eliminates multi-supplier coordination issues, and shortens time-to-market by up to 40%.
Why Choose Geyan Technology as Your Full-Stack Smart Wearable Partner?
Hardware + Firmware + SDK + App = Total Ecosystem Control

Traditional development splits hardware, firmware, and mobile app work across different vendors. This often results in compatibility issues, increased costs, and delayed launches.
At Shenzhen Geyan Technology, we integrate every development stage internally:
This is how we deliver true custom wearable hardware solutions — not just assembly services.
Custom Smartwatch PCB Design & Hardware Engineering
As an experienced OEM smartwatch manufacturer, Geyan Technology provides professional custom smartwatch PCB development tailored to brand-specific requirements.
High-Density PCB Architecture
We design multi-layer HDI boards optimized for compact smartwatch and smart band structures, integrating:
Flexible Chipset Selection
Depending on your market positioning, we support:
Power Management & Thermal Optimization
Through customized PMIC circuit design and firmware-level DVFS control, we reduce standby power to microamp levels, enabling battery life from days to weeks.
Advanced Sensor Integration
We integrate and calibrate:
This ensures stable, accurate, and reliable data collection across different application scenarios.
Smartwatch Firmware Development & Embedded System Customization
Firmware defines device intelligence and long-term stability. Geyan Technology specializes in professional smartwatch firmware development based on:
RTOS Optimization
We customize the embedded system kernel according to memory constraints, ensuring smooth multitasking such as fitness tracking while receiving real-time notifications.
Edge AI Algorithm Deployment
We integrate lightweight AI models for:
Processing data locally enhances privacy and reduces cloud dependence.
UI Framework Customization
Using frameworks like LVGL, we fully customize:
Secure OTA System
Our encrypted Delta OTA system supports breakpoint resume and version validation, ensuring seamless firmware updates for global users.
Smartwatch SDK Integration & Open API Development
For brands building their own ecosystems, smartwatch SDK integration is critical.
Geyan Technology provides complete SDK solutions for:
Including:
Bluetooth Protocol Customization
Based on BLE 5.3 and 5.4, we customize GATT services for stable, secure connections and optional BLE Mesh networking.
Cloud Platform Integration
We integrate wearable devices with:
Supporting MQTT and HTTPS encrypted communication.
Data Security & Compliance
Our solutions comply with:
We implement AES-256 end-to-end encryption to protect sensitive health data.
Custom Smartwatch App Development (iOS & Android)
A powerful mobile application enhances user engagement and brand recognition.
White Label App Deployment
Geyan Technology offers private label smartwatch app frameworks allowing:
Launch within 2–4 weeks.
Fully Customized App Development
For advanced projects, we build fully customized apps featuring:
We support localization in 30+ languages for global market expansion.
OEM / ODM Private Label Smart Band & Smartwatch Manufacturing
As a professional OEM smartwatch manufacturer, Shenzhen Geyan Technology bridges engineering excellence with large-scale production capacity.
Branding Customization
Flexible Production Capacity
Strict Quality Control
We implement:
Every device undergoes:
We also support CE, FCC, RoHS, REACH, and BQB certifications.
Case Studies by Geyan Technology
🇦🇺 Australian Fitness Startup
We helped a startup launch a 21-day battery life smart band using a Realtek platform and optimized firmware algorithms.
Result: First 1,000 units sold out rapidly; 5,000+ units within 6 months.
🇪🇺 European Medical Monitoring Project
We developed a CE MDR-compliant smartwatch with calibrated ECG algorithms and GDPR-compliant encrypted cloud transmission.
Result: Successfully adopted by healthcare institutions.
🇺🇸 US Retail Private Label Project
Delivered 500 customized private label smart bands within strict deadlines, leading to repeat orders of 5,000 units.
Our Development Process
We provide 2–3 years of firmware maintenance and system updates.
Start Your Smart Wearable Project with Shenzhen Geyan Technology
If you are looking for:
Shenzhen Geyan Technology provides a complete, scalable, and secure smart wearable ecosystem tailored for global brands.