The Withings WS-50 Smart Body Scale is a sleek and modern device that provides accurate measurements for weight, body fat percentages, heart rate, and air quality. It is powered by batteries and features a digital display for easy monitoring. Designed for gym and training activities, this scale is perfect for those looking to track their progress towards their fitness goals. With its black color and compact dimensions of 13 inches in width, this new model from Withings offers advanced technology in one convenient package.