The Withings Body Smart scale is designed to go beyond just weight, offering a comprehensive suite of metrics to help you achieve your health and fitness goals. With clinically-tested precision, this smart scale provides detailed insights such as weight trends, BMI, advanced body composition, and heart rate readings, all synced automatically to the free Withings app via Wi-Fi or Bluetooth. FEATURES: Metrics include weight, BMI, advanced body composition (fat, visceral fat, water, muscle and bone mass) and standing heart rate, Highly accurate within 0.1lbs through Position ControlTM technology, Data syncs with via Wi-Fi or Bluetooth to the Free Withings App, Up to 8 user profiles, Lasts up to 15 months with included 4 "AAA" batteries, FSA/HSA eligible. WHAT'S INCLUDED: 4 AAA Batteries, carpet feet, Body Smart Advanced Body Composition Smart Wi-Fi Scale, product guide, quick start guide. DETAILS: 1" x 12.7" x 12.7", Requires 4 "AAA" batteries (included), Glass, metal, plastic, Water resistant, Manufacturer's 1-year limited warranty: For warranty information please click here - https://cs.kohls.com/app/answers/detail/a id/140, Model no. WBS13-Black-All, WBS13-White-All, Imported. Size: One Size. Gender: unisex. Age Group: adult. Material: NONE.