A Wi-Fi smart scale that uses patented Position Control technology to deliver the most accurate body composition readings, including weight, body fat and water percentage, muscle mass and bone mass. Withings Body+ provides immediate on-screen feedback and automatically synchronizes with your smartphone to display trends and help you reach your weight goals. Beyond figures, Body+ is paired with the Health Mate app to show you trends, insights, and nutrition tracking to put your caloric intake into perspective. The scale recognizes up to 8 users with independent sync. Connectivity: WiFi 802.11 b/g/n, compatible with WEP/WPA/WPA2-personal networks. Bluetooth connectivity (Bluetooth Smart Ready). Body+ can be installed on a smartphone or a tablet, via the Health Mate app available on iOS (iOS 10 and higher) and Android (6.0 and higher). Cannot be set up from a computer. Weighing range: 5-180kg (9-396lb). 100g (0.2lb) graduation. Units: kg, lb, st lb. Large, easy-on-the-eye graphical display (2.4”x1.6”), 128x64 pixels. Free and unlimited online storage of weight readings. Stores up to 16 readings if scale cannot sync wirelessly. Powered by 4 AAA batteries (not included) with an average battery life of 18 months.