Name a workout. It can track it Count steps, check calories, and stay on the grid with GPS. Galaxy Watch4 Classic detects physical activity to track your routines and supports more than 90 exercises All the data your heart desires The Samsung BioActive Sensor measures ECG and blood pressure in real time. The sensors quickly check your blood pressure. You can also check abnormal heart rate and rhythm through ECG. The most holistic sleep analysis on Galaxy watch The sleep tracker detects and holistically analyzes your sleep stages while you rest. Improved measuring options let you check your blood oxygen levels and snoring patterns.