IFBLANK(Leading publications rank the Taylor body fat scales the highest, so be comfortable knowing this scale will be reliable. All Taylor body fat analyzers utilize the BIA method of analyzing fat -bio electrical impedance analysis -the most accurate method. A harmless electrical signal flows from one foot, through the body and back down to the other foot, registering the impedance between the fat and muscle. Taylor body fat analyzers also use 4 contact points to get better reliability. The readout is set up so both the body fat percent and the weight readings will be displayed at the same time. The screen also shows if you are within the correct body fat range as well. In addition, the scale calculates body water hydration percent, a critical measure of health. Also includes athlete mode, which is designed for elite athletes with much more muscle mass. Normal mode is designed for standard individuals, and may over estimate the amount of body fat for those with extreme muscle mass. Other features include 4 memories, accurate to 350 lb, percent reading to the 0.1%, and weight readings to the 0.2 lbs. 5 year warranty. Features include: -Uses BIA to measure body fat and body water percentages to 0.1% accuracy -Normal and athletic modes for accurate results-Separate scale only mode-Accurate to 350lbs by .2 lb. increments-Unique body fat and body water range graph, Taylor 5593 Body Fat/Body Water Scale)