Why is the Polar F4 Heart Rate Monitor So Popular Among Female Exercisers?
The Polar F4 heart rate monitor is very popular among female exercisers. It has all the expected basic features: continuous heart rate (HR) monitoring, heart rate training zone with alarms, stop watch for timing exercise duration, average and maximum exercise heart rates. At first glance, these features per se are very commonplace. So what exactly makes the Polar F4 stand out amongst the crowd? Let’s find out from the end users! continued here…