This nutrition scale earned The Best rating from the Hammacher Schlemmer Institute because it was the most accurate and the only model that measured calcium, magnesium, and potassium. Nutritional readings were compared to the USDA Nutrient Database and The Best model deviated only 0.56% for fat and 2.41% for calories, far superior to lesser models that deviated by as much as 181.41% and 20.73% respectively. Scoring highest for ease of use, The Best Nutritional Scale analyzes the nutritional content (including cholesterol, fiber, calcium, and more) of any food by portion size and stores up to 99 entries to enable tracking of daily nutrition. The Best model has a 50" sq. food platform--154% larger than other scales--that weighs up to 11 lb. portions, unlike other scales that could only weigh up to 6.6 lbs. Measures to the nearest whole gram or the nearest 0.1 ounce. Includes four AAA batteries. 9" L x 7 1/4" W x 2" H. (1 3/4 lbs.)