Women's specific design is sized to fit a woman's wrist.

ECG-accurate to provide precision heart-rate data.

Calorie counter records the calories you burned during your workout.

Displays heart rate in beats per minute or as a percentage of maximum heart rate.

Programmable target heart zone function alerts you when you're out of your optimum heart-rate zone.

Data mode recalls exercise time, time in target zone and calories for last workout.

Other functions include: time, date, two time zones, and an alarm.

Mineral glass crystal is scratch resistant.

Nike Electrolite offers one-touch backlighting.

Water-resistant to 50 meters.