A smart body analyzer apparatus includes a rotatable plate for supporting and turning a body, a control unit for rotating the rotatable plate, and at least one group of touch-less sensors for scanning the body. Examples of touch-less sensors include a far infrared temperature sensor and a depth sensor. The depth sensor can employ a time-of-flight imaging method, a stereoscopic imaging method, a microwave imaging method and/or a laser ranging method based on trigonometric principles.