Monitors wellness with all-day stress tracking & relaxation-based breathing timer; 24/7 heart rate monitoring with Elevate(TM) wrist heart rate technology; Tracks steps, floors climbed, calories burned, intensity minutes, sleep & more; Safe for swimming & showering; When paired with compatible Bluetooth(R)-enabled smartphone, receives smart notifications & connectivity to Garmin Connect(TM), the online fitness community; Move IQ(TM) automatically detects exercises such as walking, swimming, cycling & elliptical training & also automatically starts a timed walk or run activity; Rechargeable battery lasts up to 5 days; Includes fitness monitoring tools such as VO2 max, fitness age & strength training; Black; Small/medium;