Xiaomi S400 Smart Body Composition Scale: Dual-frequency electrical impedance measurement
For anyone focused on their fitness journey, the Xiaomi S400 Smart Scale offers precise body composition tracking to help you monitor progress beyond just weight. It’s perfect for tracking muscle gain or fat loss over time, giving you clear insights into your health.
This scale uses dual-frequency electrical impedance measurement to provide 25 health indicators, including body fat percentage with a high correlation to DEXA scans. The large anti-slip surface and LED display make it easy to use daily, while Bluetooth sync automatically updates your data in the app. You can track up to 36 family members, making it ideal for households committed to wellness together.
Features
- 25 health indicators
- Body fat percentage correlation coefficient ≥0.93 with DEXA
- Static heart rate monitoring
- Multiple weighing modes: baby holding, visitor, small object weighing
- Measurement range: 0.2 lbs to 330 lbs
- Minimum division: 0.2 lbs
- Shell material: reinforced glass + engineering plastic
- Operating temperature: 32°F to 104°F
- Product net weight: 3.2 lbs
- Wireless connection: Bluetooth Low Energy (BLE) 5.0
- Rated voltage: 4.5V (3x AAA batteries)
- Operating system: Android 8.0 or iOS 12.0 and later
- Battery life: up to 180 days
- User capacity: up to 36 family members
- Age range: 6 to 80 years
- Large-diameter electrode pad: 2.28 inches
- Enlarged anti-slip surface: 1.57 inches
- Display: LED with body fat, heart rate, battery level
- Bluetooth gateway connection for automatic sync
- Dual-frequency electrical impedance measurement
General specs
- Brand: Xiaomi
- Model: S400
- Seller: Joom
- ID: 68d73a319307f001f6eebaaa
- Brand: Xiaomi
- Depth: 11.81 inches
- Model: S400
- Width: 11.81 inches
- Height: 0.96 inches
- Use Case: Weight Loss
- Product Type: Smart Body Composition Scale
- Measurement Capability: Body Composition
- First listed by seller: 11/15/25
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Joom
| Date | Price |
|---|---|
| 12/10/25 | $63.58 |
| 11/15/25 | $65.90 |
Shipping options
United States
Video Reviews
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Xiaomi S400 White Dual-frequency electrical impedance measurement
|
Wyze WSCALX-W White Full body composition analysis
|
Rabater CF588BLE Black
|
LOFTILLA CS20M3-BLACK Black Accurate measurements up to 396 lbs
|
YINOLIFE FI2428LBF Black
|
RENPHO R-MSB05 Black
|
|
| Brand | Xiaomi | Wyze | Rabater | LOFTILLA | YINOLIFE | RENPHO |
| Model | S400 | WSCALX-W | CF588BLE | CS20M3-BLACK | FI2428LBF | R-MSB05 |
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| Price | $63.58 | $39.98 | $39.99 | $19.99 | $29.99 | $56.99 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 8, 2025 | December 6, 2025 | December 9, 2025 | December 9, 2025 | December 9, 2025 | December 9, 2025 |
| Material | Tempered Glass | Tempered Glass | Tempered Glass | Tempered Glass | ||
| Dimensions | 11.8, 1.18, 11.8 | 27.4, 27.4, 1.5 | 10.62 inches, 10.62 inches, 1 inches | 11.8, 11.8, 1.1 | ||
| Display Type | LED | LCD | LED | LCD | Vibrant TFT Display | |
| Power Source | Battery | Rechargeable | Rechargeable | Rechargeable | Rechargeable | |
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | Android, iOS | ||
| App Compatibility | Apple Health, Fitbit | Apple Health, Samsung Health | Apple Health | Apple Health | RENPHO Health App | |
| Item Weight | 1.2 | 2.2 Pounds | 1.8 | |||
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Wi-Fi, Bluetooth | ||
| BIA Technology | BIA | BIA | BIA | |||
| Metrics Measured | BMI, Body Fat Percentage, Heart Rate, Muscle Mass, Water Percentage, Weight | BMI, Body Fat Percentage, Muscle Mass, Weight | BMI, Body Fat Percentage, Muscle Mass, Bone Mass, Weight | |||
| Measurement Increments | 45.4 | 0.2 lbs | 0.045 | |||
