[13 BODY DATA ANALYZED] - Including Weight, BMI, Body Fat, Fat-free Body Weight, Subcutaneous Fat, Visceral Fat, Body Water, Skeletal Muscle, Muscle Mass, Bone Mass, Protein, BMR, and Metabolic Age. You can weigh at anytime without your phone, the data will sync to the app once connected. [HIGH QUALITY & HIGH PRECISION] - With a 6mm high quality toughened glass plate, increments of 0.2lb / 0.05kg with 180kg/28st/400lbs capacity. 4 high precision sensors and electrodes to ensure the accuracy. Self-Illuminated LED display provides clear readout at any angle. Rounded corner design is more secure! [APP COMPATIBLE] - For smartphone with Bluetooth 4.0 and operating system iOS 8.0 / Android 6.0 or higher. The data collected in the FITDAYS app can be synchronized with Fitbit App, Apple Health, Google Fit & Samsung Health. [ UNLIMITED USERS & SHAREABLE] - Recording your each measurements, automatic chart generation, monitor your fitness trend at a glance. Support tracking unlimited users, for all family members, caring for family, sharing for health.You can also share your result with friends by one click, mutual supervision with each other on the way to be fit. [SAFTY] - CE, RoHS FDA, FCC approved.