Remember when a racing heart meant you were in love, dancing or at a really good concert? Now maybe, it's not such a good sign. While we want to stay fit, doing so safely is a good idea at our (or any age).

This stainless steel analog watch also functions as a heart rate monitor. The 3Beat Speed Sensor needs only three heart-beats to give you an LED readout of a beats-per-minute measure that's EKG accurate in a range of 40 to 240 BPM.

You can then use the "target heart rate" function to optimize the fitness and weight-loss benefits of your aerobic workouts.

Heart Rate Watch