The latest version of Samsung’s bioactive sensor for its Galaxy Watch could provide more comprehensive, personalised and accurate health data.

In designing the sensor, Samsung engineers focused on three upgrades: enhancing the performance of light-receiving photodiodes; adding additional LED colours; and arranging them optimally across the sensor.

They have more than doubled the performance of each photodiode, decreasing the number needed to maintain capacity from eight to four. This redesign freed up additional space for the integration of a larger number and variety of LEDs and ensured their optimal placement across the sensor.

The sensor now includes blue, yellow, violet and ultra-violet LEDs in addition to an increased number of green, red and infra-red LEDs. With the integration and arrangement of these LEDs, and specially designed photodiodes, the engineers have been able to pursue unexplored aspects of health monitoring on wearables.

The optimal allocation of green, red and infra-red LEDs improves accuracy and performance across a broad array of health metrics. This lets the sensor more accurately measure health metrics such as heart rate, sleep quality, blood oxygen levels and stress levels. Even the measurement of heart rate during intensive workouts is 30% more accurate than its predecessor.

The more diverse colours of LEDs and newly designed photodiodes unlock possibilities and empower users to predict trends better and take proactive steps for preventative care. The first of these features will be a glycation end product index, an indicator of metabolic health and biological aging strongly influenced by overall lifestyle and dietary habits. Used as a biomarker, this index provides a snapshot of the wearer’s biological age to help them make more informed decisions about their wellness journey and work towards a healthier future. The addition of the index is planned for the next Galaxy Watch (www.samsung.com/us/watches/galaxy-watch-ultra).

• Samsung’s latest Galaxy Ring, Galaxy Watch 7 and Galaxy Watch Ultra use artificial intelligence to provide end-to-end wellness experiences.

These additions to the wearables portfolio are central to Samsung’s vision for Galaxy AI to enhance digital health, delivering personalised insights and tailored health experiences that enable a more comprehensive understanding of the wearer’s body through a holistic approach to everyday wellness.

Obtaining accurate, detailed and advanced information on personal health is a key factor in this process and Samsung’s accumulated sensor innovations on Galaxy Ring, Galaxy Watch 7 and Galaxy Watch Ultra are helping bring its vision to life.

Galaxy Ring delivers a straight-forward approach to wellness, offering health monitoring, tracking and personalised insights while worn comfortably on a finger, even while asleep. Galaxy Watch 7 increases everyday wellness with personal workouts along with intelligent and preventative health monitoring capabilities. Galaxy Watch Ultra  is Samsung’s most capable smartwatch yet.