eatures & details Keep Tracking Changes with a Glance - Always keep an eye on your body to help you reach your goal. The Fitdays app provides detailed charts and saves historical data to track the changes of your body composition over days, weeks, months or even years. Reach your goals with Bveiugn scales for body weight. 13 Essential Body Composition - The smart scale not only shows weight but also BMI, body fat, subcutaneous fat, body water, protein, BMR, body age etc., by electrical Bio-Impedance Measurement Technology. The data will sync to the app when your phone and scale connect successfully. It makes you know more data clearly about your body in time and track progress easily on your phone. High Accurate Scale - equipped with 4 high precision sensors and 4 good sensitive electrodes, with advanced technology to ensure your accurate readings with division at 0.2lb/100g, up to maximum capacity 400lb/180kg. With low power / overload indication, step-on technology and 2xAAA batteries included. Sync with Health Apps - Free download FITDAYS app on IOS and Android, and FITDAYS app can easily sync with other fitness Apps like Apple Health, Google Fit, Samsung Health, Fitbit and so on, which let you store and share your data more conveniently. Fitdays App allows you to create unlimited profiles 24 Users for your family and friends with only one smart scale. It is very helpful and convenient for those who keep fit and do health sports for improvement goal. Larger platform more stable - The 6mm tempered glass and 11.8 × 10.2 inches surface are thicker and larger than most others, which makes it more comfortable and safer to stand on, and more clearly to see the White LED display data. Product information Product Dimensions 11.81 x 10.24 x 0.71 inches; 3.55 Pounds Item Weight 3.54 pounds Manufacturer posture ASIN B08839L43J Item model number FG-220 Batteries 1 AAA batteries required. (included)