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Polar RC3 GPS Heart Rate Monitor

I love seeing all my stats after a workout, from calories burned to miles covered; since Spring running means moving away from the treadmill and the machine's informational display, I keep my stats on my wrist with the RC3 GPS heart-rate monitor ($280-$350) from Polar. The easy-to-use and surprisingly slim watch uses built-in GPS technology to track speed, distance, and my route while recording the information I want, like heart rate and training intensity. I appreciate that the battery life is about 12 hours of continuous use, so I can get a bunch of runs in before needing to recharge the battery using a USB connector.

— Susi May, fitness director

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