Xiaomi 50966BodyCompositionScaleS400 provides at-home body composition analysis using dual-frequency BIA. By applying 50 kHz and 250 kHz currents, it measures extracellular and intracellular fluids to deliver data on body fat, muscle mass, hydration, bone mass, and more. The scale offers 25 indicators and benchmarks key data against the industry gold standard DEXA, achieving a correlation of ≥0.93 for fat mass and related metrics. It supports multiple measurement modes and can store information for up to 36 family members. Bluetooth connectivity enables automatic sync to the Mi Home/Xiaomi Home app for cloud access. A large display shows key data on the scale; precision is 0.1 kg, and the battery life can reach up to 180 days with three AAA batteries. It’s suitable for ages 6–80, includes a Baby Holder mode for weighing infants and a Guest mode to keep measurements private. Note: This product is not a medical device and is intended for reference purposes.