Monitoring your health is at the core of Galaxy Watch Active2 with a full eight photodiodes on the rear side of a new curved design that moulds to your wrist. Health monitoring keeps an eye on your heart rate and sends you an alert when it goes above or below normal levels.5,9
More here: https://www.samsung.com/za/wearables/galaxy-watch-active2-r835/SM-R835FSDAXFA/
