The Vitals feature on Galaxy Watch tracks key metrics during sleep, to help wearers stay on top of their health.
In 2025, in an article on The Star, the importance of paying attention to the body was highlighted in a story about a Malaysian smartwatch user who discovered he had atrial fibrillation after his Galaxy Watch alerted him to an irregular heartbeat.
At the time, his symptoms had not been detected during medical examinations because the episode was intermittent. Data captured by his smartwatch helped him return to his doctor with information from an episode as it was happening, eventually contributing to his diagnosis and treatment.
Like this user, and for many of us, a smartwatch is not just a convenience gadget. It is also a
technology that lets us understanding more about our body. Rather than simply collecting a stream of numbers, the new Galaxy Watch Ultra2 and Galaxy Watch9, together with the Samsung Health app, is designed to turn health data into more meaningful insights, helping users recognize changes in their body and make more informed decisions about their everyday wellbeing.
Knowing your usual health patterns can make it easier to notice when something is different. Your body has a baseline, and the new Galaxy Watches can help you understand it. Most people know their resting heart rate, sleep duration or daily step count can say something about their health.
The challenge is knowing what all those numbers actually mean when viewed individually. The new Vitals feature is designed to make those signals easier to interpret. While you sleep, the
Watches analyzes five key overnight signals, heart rate, heart rate variability, respiratory rate, skin temperature and blood oxygen, and compares them against your own resting baseline.
Rather than simply throwing numbers at you, it looks for meaningful deviations from what is normal for you. A restless night after staying up late is one thing. But if several of your usual overnight signals suddenly look different, having that information can give you a reason to pay closer attention to how you are feeling, whether you need more rest or whether something may warrant further attention.
Heart health is a particular area where context matters. You could exercise regularly, get your steps in and feel perfectly fine, yet still have lifestyle factors that could affect your long-term cardiovascular wellbeing. Looking at one metric alone may not tell the full story.
