The S-720i combines the highest level of personal performance data, training conditions like altitude and temperature, and cycling functions.

Watch and Time Keeping Functions

    Water resistant to 20 metres
    Time of Day 12/24 hour display with 2 time zones
    Calendar with Time Alarm
    Low battery indicator
    Backlight
    Stopwatch
    Weekday indicator

Basic Functions

    Water resistant to 50 meters
    Target zones with visible audible alarm
    Backlight
    OwnCode - coded transmission
    Stopwatch
    Up to 99 split time memory
    Calendar
    Interval training function
    Number of intervals with average heart rate intervals
    Lap / intermediate times with heart rate
    Recovery function
    Lap times with heart rate and lap number indicator
    Maximum/average heart rate of each lap

Heart Rate Monitoring Functions

    All S-series hrm's share the same HR monitoring functions
    ECG accurate wireless heart rate
    OwnCode - coded transmission
    OwnCal s - calorie expenditure
    OwnIndex s
    Polar Fitness Test

Memory Data and Functions

    Total exercise time
    Time in target zone (in, below, above)
    Average and Maximum heart rate of total training
    Recovery heart rate/time after exercise
    Up to 99 split lap memory
    Lap number indicator
    Lap/intermediate times with heart rate
    Maximum and average heart rate of laps
    Number of intervals with average heart rate of intervals
    Maximum heart rate of interval conclusion
    Calorie & Cumulative calorie consumption
    Exercise set (5 settings)
    Date and starting time of exercise session
    Unlimited complete exercise files
    5, 15 and 60 second HR sampling rates
    Memory capacity 250 hours
    Exercise reminder
    Settings lock
    User ID displayed
    Infrared Windows PC Data transfer
    Data uplink from PC to S-720i watch
    Precision Performance 3.0 software
    Polar precision toolkit