Includes screen protector, Original wristband & light grey band never used, No scratches on screen. Galaxy Watch4 is a smartwatch that offers body composition data right on your wrist, you can get readings on body fat, skeletal muscle, body water, basal metabolic rate, & Body Mass Index.Supported Application:Heart Rate Monitor,Sleep Monitor,Fitness Tracker,GPS. Connectivity technology:Bluetooth,Cellular GPS. Wireless comm standard:Bluetooth BETTER SLEEP: Wake up feeling refreshed & recharged with advanced sleep tracking; When you go to bed, your Galaxy Watch4 sleep tracker starts monitoring your sleep & SpO2 levels continuously HEART: Take care of your heart with accurate ECG monitoring & keep an eye on possible atrial fibrillation, a common form of irregular heart rhythm; Share personalized readings with your doctor using Samsung Health Monitor app on your compatible Galaxy phone WORKOUTS: Get the most out of every exercise session with advanced workout tracking that recognizes 6 popular activities, from running to rowing to swimming, automatically in just 3 minutes. Improve your runs w/advanced running coaching technology; VO2 Max readings assess your oxygen levels to manage & track your heart & lung endurance EXTENSION OF PHONE: Put the phone features you need right on your wrist & stay connected to calls, texts, notifications, & music streaming, all accessible w/simple tap. Pay for coffee; Get directions; Use Google Assistant for help on almost any topic; Stream tunes