[Bluetooth Smart Body Fat Scale] The digital bathroom scales are made of 5mm thick tempered glass for exceptional strength, you can enjoy advanced technology and automatic calibration. The scale has passed a good test, allowing it to be suitable for people of all ages. You can change the weighing unit under "UNIT" - kg / St / lb. [12 essential measurements] The use of bio-impedance technology allows you to measure your physical information. 12 Health indicators provide accurate data for Weight, Fat，BMI, Metabolism, Muscle, Water, Bone mass, Visceral fat, Obesity Degree, Protein , Body age, Weight without fat. Track the impact of your exercise and diet on these metrics. [High Precision Digital Body Fat Scales] Equipped with 4 latest high precision sensors to ensure the most accurate weight measurements, our body fat scales provide weight readings in 0.2 lbs / 0.05 kg, can hold up to 'to 400 lbs. (Please place the scale on a hard, flat surface for best accuracy). [One scale for an unlimited number of users] You can create an unlimited number of accounts on the app, on which you can save all the data of all family members. You can weigh yourself anytime without your mobile device, the data will sync with the app once your mobile device is connected. [Compact Bluetooth Scale] The 11 "x 11" (28cm x 28cm) scale can fit anywhere in your bathroom or home. Its elegant rounded corners spare household members from sharp edges. It applies a bright backlit LED display, easy to read your body weight measurement at any distance, even in a dark environment.