Polar heart rate monitors were recommended very highly by the trainers at my gym. After doing a significant amount of internet research on heart rate monitors I decided to purchase the Polar F6. This HRM has balanced functionality and price.Pros: The watch is comfortable, natively works with almost all the machines at the gym, easy to read when jogging, menu system is simple. It is nice to be able to see the workout stats at the end of the week. You can set your own heart rate zones or use the pre-programmed versions.Cons: Oftentimes I have to moisten my skin under the strap to get the sensor to start. After only a month there is some fraying on the strap.Overall I would recommend this watch to anybody looking for a fairly cheap and accurate heart rate monitor. I have already purchased the female version (slightly smaller and pink) for my wife and she hasn't had any complaints yet.