Heart Rate
+ Working range 30 to 240bpm
+ ECG accurate heart rate
+ Target zone settable in 1bpm increments
+ Audible and visual heart rate zone alarms
+ % Max/Heart Rate display
+ Calorie counter

Altimeter
+ Working range -2,305 to 30,045ft (-702m to 9158m)
+ Current, Accumulated and Maximum altitude in ft or m
+ Altitude resolution 3ft (1m)
+ Graphic altitude trend display
+ Altitude alarm
+ Stores 20 altimeter data readings with altitude, time, and date

Barometer
+ Sea level pressure and absolute pressure displays in both mbar and inHg
+ Resolution 1mbar (0.05inHg)

+ Working range: 300mbar to 1100mbar (8.16inHg to 32.48inHg)
+ 24 hour graphic barometric pressure trend display
+ Barometer/Temp display
+ 6 hour weather forecast feature

Thermometer
+ Resolution 0.1° in °F and °C
+ Working range +14°F to +122°F (-10°C to +50°C)

Chronograph
+ Resolution 1/100 second with maximum time range 24hr 00min 00sec

Watch
+ Time/Day/Date/Month with Dual Time Zone
+ 12 or 24 hour format
+ Time/Temp display
+ Dual daily alarm
+ Hourly chime

+ EL Backlight system
+ Water resistant 30m
+ 2.5oz (70.9g)
+ Heart rate transmitter: Consumer serviceable battery (1 CR2032)
+ Consumer serviceable battery (1 CR2032)