Accelerometer
- Function: Detects movement and orientation.
- Purpose: Activity tracking, step count, sleep movement detection.
- Example Use: Tracking daily activity levels and differentiating sleep stages.
Heart Rate Sensor (PPG - Photoplethysmography)
- Function: To measure blood flow.
- Purpose: Continuous or periodic heart rate monitoring.
- Example Use: Fitness tracking, resting heart rate analysis.
SpO₂ Sensor (Pulse Oximeter)
- Function: Measures oxygen saturation in the blood.
- Purpose: Continuous or periodic heart rate monitoring.
- Example Use: Fitness tracking, resting heart rate analysis.
Skin Temperature Sensor
- Function: Detects changes in finger skin temperature.
- Purpose: Stress and recovery.