Wireless ECG accurate heart rate (displayed as beats per minute, % of max heart rate, as graphical trend)
Polar OwnCal
Polar Fitness Test
Polar Heart Rate Ret Test
Polar OwnCode
3 sets of Target Zone limits with visual and audible alarm
Independent count down / count up timer
Maximum and average heart rate of total exercise
Exercise date
Altitude and ascent
Altitude with graphical trend
Vertical speed (ascent and descent rate) - average and maximum
Cumulative ascent and descent
Sea level pressure with graphical trend
Absolute barometric pressure
Temperature
Barometric pressure drop alarm
Compass Features
Bearing in degrees
Bearing tracking function
North indicator, cardinal points and graphical bearing indicator
Declination setting
Polar MobileLink
Recording Features
Uplink settings upload from Polar web site or software to wrist unit
Two-way infrared data communication
Polar Precision Performance analysis software
Infrared IrDA compatible with a 3rd party device (laptop, dongle)
NOTE: Not compatible with the optional Polar IR interface
100 exercise files with summaries
Exercise file info page with date and time
Total exercise time, time in target zone, target zone limits
Average heart rate of total exercise
Last OwnIndex
Calorie expenditure and fat percentage
2 week auto logbook with circular memory
Seasons totals
Recording rate: 5s, 15s, 60s or 5 min
Memory left indication
Water resistant to 100 meters
Back light
Heart touch - button free operation of wrist unit
Time of day (12/24 hour) with 3 daily alarms
Dual time zone
Date and weekday indicator
Stopwatch
Low battery indicator
Countdown timer
5 reminders (visual / alarm)
User replaceable battery
Comes with WearLink coded transmitter (also compatible with T31 and T61 coded transmitters) 
Protrainer 5 Software CD

Two-year warranty