PPG (photoplethysmogram) technology is based on optical measurement of blood flow under the skin. PulseOn's patented optical sensor includes LEDs that illuminate the skin and the small capillary vessels close to it, and an electro-optical cell (photodetector) which detects the light which is back-scattered from the skin and tissue. When the heart pumps, the blood flow varies according to the heart’s pumping frequency. PulseOn’s sensor detects this variation from the optical signal and translates the data into an accurate heart rate reading with sophisticated algorithms.

With the most advanced sensor hardware, PulseOn optimizes the signal-to-noise ratio and ambient light cancellation for the best accurate low power heart rate monitoring – up to beat-to-beat accuracy with 6 ms resolution.

Accuracy has always been the core of PulseOn and qualifies the technology to be used for medical purposes.

Mechanic design. Firm contact of sensor and skin is essential in ensuring accuracy in optical heart rate monitoring – any movement of the sensor against the skin tissue affects the acquired heart rate signal, by causing increased movement artifacts and ambient light disturbance. PulseOn’s mechanical design is optimized to ensure the best performance in different conditions and use cases. Combined with the intelligent algorithms, all disturbances to heart rate accuracy and reliability can be minimized.