In today’s wearable market, engineering teams are no longer searching for “cheap smartwatches.”
They are searching for chip architecture, firmware control, SDK access, Bluetooth stability, and
full PCB-level customization.
Founded in 2012, Shenzhen Geyan Technology Co., Ltd. is one of China’s earliest smartwatch R&D-driven manufacturers, providing professional custom smartwatch PCB, smartwatch firmware customization, and full-stack Android smartwatch OEM solutions for technology brands, healthcare companies, and wearable startups worldwide.
With over 15 years of intelligent electronics expertise, we are the long-term SDK smartwatch supplier trusted by engineering teams who demand deep control over hardware, firmware, and cloud ecosystems.
Our nRF52840 smartwatch solution is designed for ultra-low-power, high-stability Bluetooth wearable projects:
· Nordic nRF52840 SoC
· Bluetooth 5.x Low Energy
· Ultra-long battery life optimization
· Ideal for medical wearables, BLE devices, and data collection terminals
· Full PCB, firmware, and SDK customization supported
Our ESP32 smartwatch platform is optimized for WiFi + Bluetooth dual connectivity projects:
· Dual-core ESP32 MCU
· Supports WiFi cloud connectivity
· Real-time data upload & OTA firmware updates
· Best choice for IoT smartwatches, smart campus, and cloud-connected devices
We offer complete Android smartwatch OEM manufacturing including:
· AOSP firmware deep customization
· Google framework integration (where applicable)
· Custom boot logo, launcher, system UI & features
· APK pre-installation & private system services
· PCB redesign and peripheral expansion
Perfect for LTE smartwatches, healthcare terminals, and enterprise-grade wearable devices.
As a professional SDK smartwatch supplier, we provide:
· Full SDK & API documentation
· BLE communication protocol access
· Cloud platform API
· Private app and firmware development support
· Engineering technical documentation & testing support
Your development team controls the product — not the factory.
We support deep smartwatch firmware customization including:
· Sensor algorithm optimization
· Power consumption tuning
· GPS & BLE performance optimization
· Function module enable/disable
· Multi-language firmware development
At the hardware level, our custom smartwatch PCB services include:
· Schematic design
· PCB layout
· RF tuning
· EVT / DVT / PVT engineering validation
· Compliance-ready design (CE / FCC / RoHS)
Our latest Bluetooth 5.3 smartwatch OEM platforms deliver:
· Faster connection speed
· Lower latency
· Higher anti-interference performance
· Longer standby battery life
· Stable BLE communication for medical and fitness devices
One of our flagship OEM platforms integrates advanced hardware, firmware, and UX customization:
Key Engineering Highlights
· 1.43” AMOLED Display
· Bluetooth Calling & Smart Notifications
· 24/7 Heart Rate, SpO₂, Blood Pressure, Stress & Sleep Monitoring
· 100+ Sports Modes with GPS Route Tracking
· Bluetooth 5.3 architecture
· IP67 / IP68 waterproof
· Optimized low-power chipset for 7–10 days active use
· Full OEM/ODM customization: PCB, firmware, UI, app, cloud, packaging
This platform is widely used for:
· Healthcare wearables
· Smart campus projects
· Corporate wellness programs
· Brand smartwatch startups
· Pioneer of China’s smartwatch R&D manufacturing
· Standing committee member of national wearable & chip associations
· Independent firmware, hardware, and cloud development
· Full-stack OEM / ODM engineering capability
· Small-batch prototyping + mass production scalability
· Global compliance manufacturing
