Boston Running Center

Polar Heart Rate Monitor F4

the first women's specific unit from Polar

includes all the necessary heart rate features with a new slim design

button free operation

Zone Pointer" helps keep you in your Target Zone

Own Cal® tracks the calories you burn during exercise

target zones with visual alarm

target zones with audible alarm

average heart rate of total exercise

exercise date

date and weekday indicator

time in target zone

target zone limits

time of day (12/24 h) with alarm

Polar T31 transmitter

stopwatch

water resistant to 30m