Press release on new ActLight’s heart rate sensor

New heart rate sensor achieves 80% reduction in power consumption


Lausanne, Switzerland, April 27, 2017

Today, ActLight presented the next generation Heartrate Sensor for wearables, featuring a remarkable 80% reduction in power consumption compared to what is currently available on the market, and still delivering the same performance. The Heart rate sensor is based on ActLight’s proprietary Dynamic PhotoDiode (DPD) technology and has been developed in co-operation with a global MedTech semiconductor vendor and École polytechnique fédérale de Lausanne (EPFL).

In existing smartwatches and wearables, up to 80% of the power consumption is related to heart rate monitoring when it is activated. A new generation of sensors, developed by ActLight in close co-operation with EPFL, provides high precision heart rate monitoring with significantly reduced energy consumption. This will result in much improved battery lifetime in future smartwatches as well as allowing for extended use of heart rate sensing features related to sports and wellbeing. Already tested and calibrated, ActLight’s heart rate sensor is ready to be produced in large series to equip next generation wearables.

“Increased interest in fitness and wellness – has necessitated more affordable, precise, wearable sensing options. Our technology offers unique competitive advantages to our partners when compared to existing photodiodes used in wearable heart rate solutions” stated Serguei Okhonin, PhD, CEO of ActLight

”Today’s smartwatches and wearables fall short of meeting customer requirements when it comes to  heart rate measurement precision and application battery life time. ActLight is now working with a number of partners to bring this technology into consumer electronics and MedTech grade solutions. We are open for IP licensing of our patented DPD technology that we own 100%” Mr. Okhonin continued.

Detailed results of the project and the ActLight DPD heart rate sensor can be obtained on request.


About ActLight

ActLight SA focuses on the field of CMOS photonics by developing a new type of photodetector, known as Dynamic PhotoDiode (DPD). As a fabless company, ActLight licenses its Intellectual Property (IP) and provides design and technical support services to its customers. ActLight is listed among EE Times Silicon 60 and Top 100 Startups in Switzerland.

For more information about ActLight, please contact:

Serguei Okhonin

Phone: +41-79-6730262