1. Connect Turn on Bluetooth, open EufyLife, and pair with your scale. Note: EufyLife is compatible with devices running iOS 8.0+ and Android 4.3+ - 2. Step On Take off shoes and socks and step on. Note: For the most accurate measurements, place SmartScale on a hard and flat surface. Note：Stand with your feet to the left and right of the metallic circle. Do not stand on the center of the scale. - 3. Understand Your Body Track and compare your readings for comprehensive health insight. Note : Accurately measures weight from: 11lbs - 397lbs || 0st 11lbs - 28st 5lbs || 5kg - 180kg. Note : Only your weight is displayed on the scale. For all other measurements, check the EufyLife app.