A compact wearable device with embedded biometric sensors for continuous health monitoring, featuring heart rate, SpO2, temperature tracking, and cloud-based analytics.

PPG, accelerometer, temperature, SpO2, and galvanic skin response sensors on flexible PCB
Nordic nRF52840 SoC with BLE 5.0 and on-device signal filtering and feature extraction
Encrypted BLE data transfer to mobile app with automatic cloud backup and analysis
Flutter mobile app with real-time vitals, trend graphs, and personalized health insights
Photoplethysmography sensor with adaptive sampling delivers accurate BPM readings during rest and exercise.
Dual-wavelength SpO2 sensor with medical-grade accuracy for continuous oxygen saturation tracking.
Skin temperature sensor with 0.1C resolution for circadian rhythm monitoring and fever detection alerts.
6-axis IMU with ML-based activity classification detecting walking, running, sleeping, and sedentary states.
Aggressive power management with dynamic sensor duty cycling achieving 72-hour battery life on a single charge.
End-to-end encrypted data transmission with on-device anonymization and HIPAA-compliant cloud storage.



Evaluated PPG, IMU, and temperature sensors for accuracy, power consumption, and form factor compatibility.
Flexible 4-layer PCB design with component placement optimized for a wrist-worn enclosure under 12mm thick.
nRF52840 firmware with real-time signal conditioning, heart rate extraction, and BLE GATT service implementation.
Flutter cross-platform app with real-time BLE data streaming, trend visualization, and health insight engine.
Comparison testing against medical-grade devices for heart rate, SpO2, and temperature measurement accuracy.
From biometric sensors to mobile health apps, our team designs wearable solutions that combine medical-grade accuracy with consumer-friendly design.