Studies have shown that exercisers who wear a pedometer consistently take more steps than those who do not. Now you can put yourself to the ultimate walking test: can you walk a marathon? Track your steps or distance, and see how long it takes you to complete the challenge – 2, 5, or 8 days. Accelerometer technology allows you to wear this pedometer around the neck, clipped to a purse, or secured to your shoe. Track steps, distance, or time, or see if you can meet the marathon challenge. EL backlight.