Samsung Galaxy Watch 4 40mm Cellular

Get to know your body - Track your fitness progress with our first smartwatch that conveniently measures body composition. Compete with friends and family - in a fun competition through a live message board. Challenges come with commemorative badges and a point system to make exercise fun, motivating and socially rewarding. Fitness Tracking - Track your activities and fitness scores on your watch and phone. Count steps, check calories, and stay on the grid with GPS. Blood Pressure & ECG - The Samsung BioActive Sensor measures ECG and blood pressure in real time. After initial calibration, the sensors quickly check your blood pressure. Sleep Tracker - Detects and holistically analyses your sleep stages while you rest. Improved measuring options let you check your blood oxygen levels and snoring patterns. Wear OS - The first smartwatch with Wear OS Powered by Samsung, Galaxy Watch4 puts seamless access to your favourite apps on your wrist.