Understanding Your Body at a Glance: Heart Health Score
The American Heart Association recommends looking at Life’s Essential 8 2 as key measures for improving and maintaining cardiovascular health: diet, exercise, sleep, weight, blood pressure, blood sugar, cholesterol, and smoking cessation. But what role do these factors play in the choices we make for better heart health?
Samsung Health’s Heart Health Score 3 is designed to help you in this journey. It tracks and analyzes key lifestyle and biometric factors, such as sleep duration, daily activity level, body composition, and blood pressure,4 converting them into a single, unified daily score.
If you miss daily exercise for a few days, Galaxy Watch recognizes that your activity level has decreased, and reflects this change in a lower Heart Health Score — recommending ways to improve that score, like taking a brisk walk or light jog. With convenient insights right from your wrist, Galaxy Watch delivers personalized recommendations that make it easier to recognize changes, understand your habits, and take the next step.
Galaxy Watch and Samsung Health provide effortless understanding of cardiovascular wellness through the Heart Health Score 5
Advanced Sensor Technology: From Measurement to Meaning
Samsung Galaxy Watches are equipped with an advanced BioActive Sensor which integrates three precision components: an optical heart rate sensor (PPG), an electrocardiogram sensor (ECG),6 and a bioelectrical impedance analysis sensor (BIA).
With calibration just once every 28 days using an upper arm blood pressure cuff (sold separately), you can easily check your blood pressure from your wrist anytime, anywhere. When you place your finger on the watch’s side electrode for just 30 seconds, the watch uses a built-in electrical sensor to measure an electrocardiogram (ECG) to detect signs of abnormal heart rhythms like atrial fibrillation (AFib) or ectopic beats. The Irregular Heart Rhythm Notification (IHRN) 7 feature, which detects abnormal heart signals, monitors the user’s heart rhythm throughout the day and provides a proactive notification if abnormal signs are repeated.
Even small reminders like this can help save lives. These notifications 8 can prompt users to seek help and identify early detection of risks such as atherosclerosis or myocardial infarction.
Galaxy Watch supports heart rhythm monitoring through irregular heart rhythm notifications and ECG readings.9
Around-the-Clock Care: How Galaxy Watch Proactively Monitors Your Health Even During Sleep
Your heart is working whether you’re awake or asleep. When you wear your Galaxy Watch to sleep, it analyzes five major vital signs: heart rate during sleep, heart rate variability, respiratory rate, skin temperature, and blood oxygen saturation. These signals are compared against your personal baseline.10
When you wake up, your Galaxy Watch will send a notification if it detects meaningful deviations from your baseline. By highlighting meaningful changes early, it gives you an opportunity to rest, recover, or seek medical guidance before small issues become larger concerns.11
Galaxy Watch and Samsung Health give users a clear view of their sleep quality with detailed metrics and insights they can use to improve their sleep habits.
Heart to Heart: Connected Care That Adds Peace of Mind
Looking after your own heart is only one side of the story. From parents to partners, siblings to grandparents, or even friends, sometimes you also need help caring for the important people in your life. Samsung’s Health Data Sharing 12 function lightens the load by sharing agreed-upon data — number of steps, blood pressure, heart rate, and medication adherence — with loved ones.
You can check if your parents who live far away have completed their daily walk or taken their prescribed medication, for peace of mind.
Samsung Health lets users share selected health data with loved ones, helping them stay connected and informed about one another’s wellbeing.13
World Heart Day coincides with the seasonal transition when chilly winds begin to blow in the mornings and evenings. As the temperature gap between day and night widens, blood vessels constrict, sharply increasing the risk of cardiovascular disease.
The key to preventing heart disease lies not in reactive treatment, but in proactive habits of paying close attention to the subtle signals your body sends every day. Start managing your heart health with Galaxy Watch, a reliable health partner that stays with you around the clock.
1 Source: World Health Organization (WHO), “Cardiovascular diseases (CVDs)” Fact Sheet (July 31, 2025), “The top 10 causes of death” (Aug. 7, 2024).
2 Source: American Heart Association (AHA), “Life’s Essential 8” (2022).
3 Requires a compatible Samsung Galaxy phone, Samsung Health app v7.0 and Samsung account. Requires initial setup wearing watch for 24 hours (including awake and asleep). The Heart Health Score software functions are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
4 Samsung’s blood pressure monitoring requires a third-party blood pressure cuff (sold separately) for initial and periodic calibrations (every 28 days). Read and follow instructions to calibrate the blood pressure function. It is not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease. Consult your physician if you have any questions or concerns about your medical condition or treatment.
5 AI-generated imagery is for illustrative purposes only. Actual UX/UI may vary.
6 The ECG Monitor App intended for adults 22 years and older analyzes pulse rate data to identify episodes of irregular heart rhythms suggestive of AFib and provides a notification suggesting the user record an ECG to analyze the heart rhythm. The IHRN feature is not intended to provide a notification on every episode of irregular rhythm suggestive of AFib and the absence of a notification is not intended to indicate no disease process is present; rather the feature is intended to opportunistically acquire pulse rate data when the user is still and analyze the data when determined sufficient toward surfacing a notification. The ECG Monitor App is not intended to replace traditional methods of diagnosis or treatment. The ECG app is not intended for users with known arrhythmias other than AFib or users under 22 years old. Users should not interpret or take clinical action based on the device output without consultation of a qualified healthcare professional.
7 The IHRN feature is not intended to provide a notification on every episode of irregular rhythm suggestive of AFib and the absence of a notification is not intended to indicate no disease process is present. It is not intended for users with other known arrhythmias or users under 22 years old
8 Source: “When Every Second Counts: Galaxy Watch Series Health Features Help Save Lives,” Samsung Newsroom
9 AI-generated imagery is for illustrative purposes only. Actual UX/UI may vary.
10 Requires a compatible Samsung Galaxy phone, Samsung Health app and Samsung account. Requires initial setup wearing watch for 7 out of 28 nights. The Vitals software functions are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
11 Requires a compatible Samsung Galaxy phone, Samsung Health app and Samsung account. Requires initial setup wearing watch for 24 hours (including awake and asleep). The Heart Health Score software functions are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
12 Health Data Sharing feature requires user consent, and users can independently choose which health data to share (including steps, workouts, sleep, weight, body composition, food intake, heart rate, stress, blood pressure, blood glucose, medication and vital signs).
13 AI-generated imagery is for illustrative purposes only. Actual UX/UI may vary.
