FITINDEX Smart Scale is your healthy assistant, which can measure 13 body metrics to show on FITINDEX APP and can also sync with Fitness APP. Bluetooth scale supports you and your family to share one scale to manage health metrics and improve health condition. Keep you and your family healthy. Features: >> Sync with Fitness APP like Apple Health, Google Fit, Fitbit APP >> Sync 13 measuring health metrics >> Support multiple users to share one digital scale to record their own data on APP >> Connect FITINDEX wireless bluetooth scale via Bluetooth 4.0 >> Support for Android 4.3, IOS 7.0 or above smart phones Measure Range: Body Weight, Body Fat %, BMI, Fat-free Body Weight, Body Water %, Skeletal Muscle, Muscle Mass, Bone Mass, Protein, BMR, Metabolic Age, etc Specifications: Weight unit: lb / kg / st (Switch the unit via FITINDEX App) Maximum weight: 396lb / 180kg Division: 0.2lb / 0.05kg Display: LED Backlight Product size: 260*260*25 mm (10.2 x 10.2 x 0.96inch) Batteries: 3 x 1.5V AAA Note: 1.Please input your personal information accurately on APP to ensure measuring results accurate. 2.Place the body fat scale on a hard, flat surface during use. Using the weighing scale on a soft surface - like carpet or linoleum - may affect the accuracy of the body scale readings. 3.Use the weight scale while barefoot. The weighing scale cannot measure body fat percentage if you wear shoes or socks. 4.Body Fat Percentage measurement is intended for users between 10 and 80 years old. 5.Body scale is just for family daily use and should not be used as medical usage. You should consult a professional doctor when undertaking any diet or exercise program. 6.If you need athlete mode, please choose in your profile. Package Included: * 1 x FITINDEX Bluetooth Scale * 1 x User Manual * 3 x 1.5V AAA Batteries