HIG1003 Features: * Watch * Include mineral glass lens, dual time zone, EL backlight * Altimeter, barometer, thermometer, and heart rate monitor all in one * Altimeter measures cumulative ascent and descent, vertical speed, max altitude with many other great features * Digital barometer and thermometer provide accurate and timely readings * Heart rate monitor provides a 24 hour HRM chronograph, average heart rate, and target zones with audible alarm