EBayItem Description ​Title: BRAND NEW Body Composition Scale S400 - Smart Health Analyzer ​Condition: You are buying a Brand New, Factory Sealed Body Composition Scale S400. The box has never been opened. This is the latest model with upgraded sensors for gym-quality accuracy. ​Why is the S400 better than the old Mi Scale? Unlike older smart scales that use a single frequency, the S400 uses Dual-Frequency Bio-impedance Measurement (50kHz & 250kHz).  ​Low Frequency: Measures fluid outside cells (blood/tissue water).  ​High Frequency: Measures fluid inside cells (muscles/organs).  ​Result: It is benchmarked against DEXA scans (the medical gold standard) with ≥0.93 Correlation accuracy. It doesn't just guess; it knows.  ​Key Features: ​25 Health Indicators: Measures Weight, Body Fat %, Muscle Mass, Water Content, Visceral Fat, Bone Mass, Protein, BMI, and more.  ​Heart Rate Monitoring: Measures your static heart rate while you weigh yourself.  ​Modes for Everyone: ​Small Object Weighing: Accurate down to 0.1Kg (great for weighing parcels or luggage).  ​Baby/Pet Mode: Weigh yourself first, then hold the baby/pet to get their exact weight.  ​Guest Mode: Let friends use it without messing up your personal data history. ​App Sync: Connects seamlessly to the Mi Home / Home App via Bluetooth 5.0 To track trends over time.  ​Specifications: ​Dimensions: 300 x 300 x 24.55 Mm  ​Weight Range: 0.1Kg to 150kg  ​Display: Hidden LED Display (Invisible until you step on it) ​Surface: Tempered Glass (Sleek and easy to clean) ​Shipping: ​Fast Dispatch: Ships within [1] business day. ​Safe Packing: Will be wrapped in bubble wrap and cardboard to protect the glass surface during shipping. ​Buy with Confidence: ​Trusted seller. ​Authentic Product.