This Smart Bluetooth Body Scale monitors more than 10 key body composition factors and will send the information directly to your iOS or Android App. The functions include Measuring Body Weight, BMI, Body Water, Metabolic Age, BMR, Visceral fat, Skeletal Mass, Muscle Mass, Bone Mass and Protein. The data will sync to the App once your phone and scale are connected. The data can sync to Apple Heal Kit, Google Fit, and Fitbit. This scale is also compatible with Amazon Alexa and Google Home. Supports unlimited users with a max weight of 396lbs. An ideal product for a healthy lifestyle.