Accelerometers are the most accurate pedometers on the market today. Accelerometer pedometers have no moving parts so there is no clicking sound as you are walking. They also test more accurate than spring-levered mechanisms whose accuracy becomes a problem when they are worn at a tilt which is often the case with larger body shapes and/or waist measurements or even those walking at slower speeds. The accelerometer pedometer can be worn at any tilt and will still be accurate. It also is more user-friendly in that it filters out incidental movement like crossing your legs or sneezing, being bumped, by not counting steps for 5 seconds to prevent recording false steps, and then starts counting at the 6th second so that the step count stays accurate.
While the Digi-Walker or mechanical pedometers had to be worn on the waistband at a vertical angle for accuracy, the accelerometer can be worn on the waist, on the wrist, in a pocket or hang from a lanyard around the neck (this depends on the model and the brand).
If there is a drawback to the Accelerometer pedometer it is that it will use more battery power than a normal pedometer battery. Careful selection of your accelerometer is important as you want an accelerometer pedometer that will go into “sleep mode” when inactive which will help to save battery power. Depending on the accelerometer, your battery can last well over a year and is easy to replace.