 |
| ||||||||||||
 | |||||||||||||
 Polar S120 Heart Rate Monitor By: Polar Average Rating: 4.0 Total Reviews: 1 More Information Good Fit For Smaller Chest Sizes  On: 2005-06-21We picked this up for my son and it works fine. Hes used my S-710 but in order to get a reliable heart rate signal, the chest strap has to be very tight. This is due to the width and stiffness of the S-720 heart sensor transmitter. The S120 comes with a more flexible transmitter that works well with narrower, smaller diameter chest sizes. I dont know if Polar has downsized all of their transmitters or not. The price on this monitor is pretty high. We picked it up on sale and it still seemed steep! |