Versatile straps for all weather wear, enables you to wear the watch providing an instant and effortless read throughout the day. The PD-642 Watch Pedometer is both lightweight and comfortable. Of all the pedometers on the market, the PD642 offers a sleek design with all the right components- so it's perfect for walking, running, and hiking. The Tanita PD-642 wristwatch pedometer is the best way to keep easy and accurate track of your steps throughout the day. Battery included. Dimensions: 2.1 in x 1.7 in x .5 in.