Simply put in your stride length and weight and the M317 provides the step counter as well as distance traveled, calorie exenditure and a stopwatch for timing; an ideal pedometer for those people seeking a variety of performance assessment information. Automatic step counter. Measure distance traveled in miles or kilometers. Calculates calorie expenditure. 1/100 second precision stopwatch. Time of day display. Input stride in inches or centimeters; weight in pounds or kilograms. Choose from blue, yellow, purple, orange, green and red. One year warranty; Silver Oxide battery 392.