SMARTPHONE COMPATIBLE: The electric scale is wireless and connects to your phone via the Beurer HealthManager Pro app, an easy health and fitness activity tracker, works with apple and android MEASURE BMI: Our accurate, scale measures your bodyweight and body mass index with precision to provide a more complete analysis and monitor your weight loss or gain, 400lb capacity LOW-ENERGY TECHNOLOGY: The bluetooth system is German-engineered for low energy consumption and features a clear, LCD screen with auto shut off, scale measures in metric kgs or lbs STEP-TECHNOLOGY: This bathroom scale will fit any room in your house, just step on the scale and weighing begins, no calibration needed, home essentials and floor scales for watchers of their weight USER RECOGNITION: The scale auto-recognizes up to 8 personal profiles and saves 30 readings per user to the device - a precise, wellness essential for the household, best weighting on a flat surface