In terms of accuracy and reliability the SW-200 DIGI-WALKER pedometer is the gold standard, the pedometer by which other pedometers are compared. It is the best choice for those implementing 10,000 steps programs or individuals looking to improve their health through a step counting program. Simple and easy to use, It tracks the number of steps you take each day. That's it—steps only! If you tend to lose things, a security strap is a smart option.