Samsung Galaxy Watch 4 Classic 46mm SM-R890 The watch that knows you best Most of us want to know more about ourselves, so we can be the best version of ourselves. That’s why we engineered the all-new Galaxy Watch4 Classic to be the companion to your journey towards a healthier you. A classic that’s truly timeless This rotating bezel turns more than heads Some looks are timeless, like the Galaxy Watch4 Classic’s rotating bezel and vivid screen. The refined design brings sophistication to your wrist and its high-end stainless steel materials express its powerful and intuitive functionality. Strap in and start moving Stay comfortable all day long with the Ridge Sports Band. Its fluoroelastomer material keeps the band durable and sweat-resistant while maintaining a firm fit on your wrist to suit your active lifestyle. BODY COMPOSITION Don’t just listen to your body. Know it Track your fitness progress with our first smartwatch that conveniently measures body composition. Get to know your body fat percentage, skeletal muscle, body water and more to achieve your goals. The Samsung BioActive Sensor and our fastest chip brings the biggest innovation to Galaxy Watch yet. A watch that’s watching out for you BLOOD PRESSURE & ECG All the data your heart desires Meet the Samsung BioActive Sensor that measures ECG and blood pressure in real time. After initial calibration, the sensors quickly check your blood pressure. You can also check abnormal heart rate and rhythm through ECG and send data straight to your phone to be easily shared. Blood Pressure Measure Blood Pressure using an Optical Heart Rate Sensor known as the PPG Sensor. ECG Measure ECG using an Electrical Heart Sensor. ADVANCED SLEEP 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 (not saying you do). Plus, get advanced insights from the National Sleep Foundation for better sleep quality and duration. Specifications Display 1.4″ (34.6mm) Circular Super AMOLED (450×450) Full Color Always On Display Corning® Gorilla® Glass DX Battery 361mAh AP Exynos W920 Dual Core 1.18GHz OS Wear OS Powered by Samsung Memory 1.5GB RAM + 16GB Internal Memory SensorAccelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor, Hall sensor Durability5ATM+IP68/MIL-STD-810G