Polar VANTAGE V Blue Features: Compatible with: Mac OS X 10.9 Professional multisport watch Barometric altimeter Smart Notifications Measures heart rate, distance and speed Pedometer, calorie consumption measurement, sleep monitoring, swimming style recognition Display of time, date and weekday Wake-up function with vibration Route planner, GPS, Bluetooth Colour / touch display with 3.04 cm / 1.2" diagonal and a resolution of 240 x 240 Waterproof up to 5 bar Colour: black