Xiaomi Body Composition Scale S400 – MJTZC01YM | S400

The Xiaomi Body Composition Scale S400 is a sleek and powerful smart scale designed to deliver precise health insights. It uses dual-frequency bioelectrical impedance (50 kHz & 250 kHz) to measure 25 body metrics in a single step, including weight, body fat, muscle mass, body water, protein, bone mineral content, BMI, visceral fat, and resting heart rate. The scale supports multiple modes for infants, guests, and small objects, and can be paired with the Xiaomi Home app via Bluetooth 5.0 to sync data and monitor progress over time.

• Measurement Range: 0.1 kg – 150 kg
• Units: kg (switchable via app)
• Precision: 0.1 kg increments
• Body Data Metrics: 25—including heart rate, visceral fat, body score
• Frequency: 50 kHz & 250 kHz dual-frequency impedance
• Accuracy Benchmark: Correlation ≥ 0.93 with DEXA standard
• User Profiles: Up to 36 users, age range 6–80
• Special Modes: Baby/pet weighing, guest mode, balance testing, small object mode
• Connectivity: Bluetooth Low Energy 5.0 to Xiaomi Home app
• Display: LED screen built into glass surface
• Dimensions & Weight: 300 × 300 × 24.55 mm; 1.45 kg
• Shell Material: Toughened tempered glass with ABS/plastic frame
• Power: 3 × AAA batteries (up to 180 days usage)
• Operating Conditions: 0 °C–40 °C; up to 150 kg capacity