Like other DIGI-WALKER™ pedometers, the SW-701 model measures your steps and calculates distance by multiplying the number of steps you take by your stride length. (This model accepts stride lengths in increments of .25 feet.) What makes the SW-701 special is that it can be programmed with your weight to help you determine your estimated caloric expenditure. While not as accurate as the NL-2000 activity monitor in determining the calories you burn each day, the SW-701 provides a good approximation of how your activity level translates into calories burned. This model is about 2" x 1 1/2" x 3/4" and weighs less than 3/4 ounce. First Class Mail shipping and handling for 1-3 units is only $6.95. Learn more about shipping and handling fees. Buying a gift? Consider our gift packaging options. Need help using your pedometer? See Using Your NEW-LIFESTYLES DIGI-WALKER™ Pedometer. (You'll need Adobe Acrobat Reader to read this file.) SW-701 Online Bundle (Pedometer, Security Strap, Calendar Log, 10,000 Steps Guide, & ONLINE MEMBERSHIP) Steps, Distance (in Miles) & Calories Black SW-701-0ON$59.90 SW-701 Tech-Timid Bundle (Pedometer, Security Strap, Calendar Log, 10,000 Steps Guide) Steps, Distance (in Miles) & Calories Black SW-701-0TT$36.95 SW-701 Basic Bundle (Pedometer, Security Strap, Basic Instructions, and Calendar Log,) Steps, Distance (in Miles) & Calories Black SW-701-0BB$29.95 SW-701 Bare-Bones Steps, Distance (in Miles) & Calories Black (Pedometer and Basic Instructions) SW-701BB$24.95 Copyright 2003-2006 NEW-LIFESTYLES INC.