This watch is perfect for my needs. It tell all the basic vital information. I usually bike alone or without other heart rate monitors around so I don't get interference. This model is now discontinued. 4 stars

Can't say enough about it. All the functions work great and I am able to tell exactly how many calories I am burning. 5 stars

Very light and easy to wear. This is my first running watch, so i can't bring more information, but it's nice to wear and motivate to running thanks to the sounds emited by. 5 stars

I'll start off by saying I'm kind of a picky person, recently in the movie "Hulk" I saw that the main character uses a Polar F5 to monitor his rate with a snazzy alarm so off I go to get the same. As far as the heart rate monitor it is accurate enough and updates actively (per beat). The quality of the watch I would say is about the same as a 20 dollar pharmacy watch, not as good as a cheap namebrand watch but not as bad as a 10 dollar corner store kids watch. The big letdown is that this watch isn't all you need, you have to wear a chest strap on your bare skin to use the Heart Rate Monitor freature and it isn't comfortable since it has to be tight to get a good reading. The movie was misleading because of how they show you only need the watch but I believe from looking at the website that the $120+ models all seem to be completely wireless and gadget free though I could be wrong. All in all I can't really complain though I don't recomend you get this for "all day" wear, this is definately an item for wearing at the gym only since it feels very delicate (cheap/flimsy) and I'm sure daily wear would break it quick. 3 stars

Wrist band is the size of an young adult or woman. This is not made for a man although the product review does not tell you that. 1 star