Simple to use electronic pedometer displays distance traveled,steps taken, calories burned during the walk, hike or jog. Memory feature recalls your results daily, weekly or monthly. The Smart Timer only operates when you are moving. The 350 features APD (an Advanced Pendulum Design with a unique, patented, state-of-the-art pedometer counting engine that ensures accurate step and/or distance measurement). Designed specifically for walkers and hikers. Includes a personal stride adjustment feature. more info