[bbro]

I have a polar F6 and it has that capability. I don't really use that functionality too much. I keep an eye to make sure I am at least in the range. If I am using the arc trainer, I use it to make sure my heart won't explode. It also has other settings for the heart rate, but I don't really know what they do. You can get the booklets online, I think, to see if it has what you need. One thing is that it is advertised that the Polar F6 has a stopwatch, but it doesn't really. It only has one that is integrated to the exercise/calorie burn functionality. It also has personalized settings. You put in your weight, age, height, sex, etc.

I like it, it's a little bulky for me, so I only wear it at the gym. The chest strap can be a bit picky about picking up your heartbeat, but that's easily solved by getting it wet. I think some people worry about cross-transmission with the machines at the gym. I never had an issue with it as far as I could tell. I mostly use it to track the calories I am burning for cardio only. According to what people have told me, heart rate monitors cannot be used for tracking calories burned from strength training.

What ever you do get, I have read that the ones with the chest strap are the most accurate. If you get a Polar, I think they all have chest straps.

Hope that helps a little.