News

Custom Smartwatch & Smart Band: PCB, Firmware, SDK & OEM/ODM

Views :
Update time : 2026/2/25 11:27:54


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.


Custom Smartwatch & Smart Band


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


Custom Smartwatch & Smart Band


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:

  • Hardware and firmware engineers collaborate closely to ensure sensor accuracy and ultra-low power consumption
  • A single project management structure from prototype to mass production
  • Full IP ownership for your brand, including UI, firmware logic, and data architecture

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:

  • Bluetooth Low Energy 5.4
  • GPS modules
  • Wi-Fi 6
  • NFC
  • Advanced sensor hubs

Flexible Chipset Selection

Depending on your market positioning, we support:

  • Realtek platform – cost-effective and energy-efficient, ideal for consumer-grade smart bands
  • MediaTek (MTK) platform – high-performance solution for advanced UI animation, standalone calling, and multi-mode positioning
  • Nordic Semiconductor – ultra-low power architecture suitable for medical-grade wearables

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:

  • PPG heart rate sensors
  • SpO2 modules
  • ECG systems
  • Temperature monitoring
  • 9-axis motion sensors

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:

  • FreeRTOS
  • Zephyr
  • RT-Thread

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:

  • Gait analysis
  • Sleep staging
  • Fall detection
  • Abnormal heart rate alerts

Processing data locally enhances privacy and reduces cloud dependence.

UI Framework Customization

Using frameworks like LVGL, we fully customize:

  • Watch face animation
  • Gesture control
  • Rotary crown interaction
  • Visual interface aligned with your brand identity

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:

  • Android (Kotlin / Java)
  • iOS (Swift / Objective-C)

Including:

  • API documentation
  • Demo source code
  • Debugging tools
  • Engineering support

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:

  • AWS IoT
  • Microsoft Azure
  • Google Cloud
  • Alibaba Cloud

Supporting MQTT and HTTPS encrypted communication.

Data Security & Compliance

Our solutions comply with:

  • GDPR
  • CCPA
  • HIPAA (for healthcare applications)

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:

  • Health data dashboards
  • GPS route visualization
  • Long-term analytics
  • Cloud synchronization

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

  • Laser engraving
  • Silk printing
  • Custom strap materials
  • Packaging design
  • Boot animation customization

Flexible Production Capacity

  • MOQ starting from 500 units
  • Monthly capacity up to 100,000 units

Strict Quality Control

We implement:

  • IQC
  • IPQC
  • FQC

Every device undergoes:

  • Aging testing
  • IP67/IP68 waterproof testing
  • Drop testing
  • High/low temperature testing

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

  1. Requirement Analysis & PRD
  2. Hardware Engineering (ID / MD / EE)
  3. Firmware & App Development
  4. EVT / DVT Validation
  5. PVT & Mass Production
  6. Long-Term OTA & Technical Support

We provide 2–3 years of firmware maintenance and system updates.


SMART RINGS



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.

Recommended products
Read More >>
Contact Us ×
WhatsApp
Wechat / Message

Start WhatsApp instant communication

Start chatting
Click here to copy WeChat ID




Click here to Leave a Message!