Xiaomi Body Composition Scale S400

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