FUNCTION 1 Altimeter (altitude trend chart and climb rate) 2 Barometer ( air pressure trend chart) 3 Compass 4 Thermometer 5 Weather Forecast World Time 6 Pedometer step counter calorie distance record 7 Time functions: hour minute second year(2000-2099) month date weekday 8 Alarm clock (2 sets alarm clock ) 9 Countdown timer (99:59:59~0) 10 Stopwatch (0~:59:59) 12 Worldtime functions 13 Corporates digital compass altimeter barometer Thermometer air pressure trend and altitude trend and altitude trend 14 Button tone on or off 15 Battery life remind 16 EL Backlight