Specification:

Brand: XIAOMI

Model: S400 Pro

Model Number: MJTZC03YM

Dimensions: 300 x 300 x 25.5 mm

Net Weight: 1.65 kg

Measurement Unit: kg

Weighing Range: 0.1 - 150 kg

Minimum Division: 0.05 kg

Shell Material: Steel Glass + Engineering Plastics

Operating Temperature: 0°C ~ 40°C

Wireless Connectivity: Low Energy Bluetooth 5.1

Rated Voltage: 6V (4 x AAA batteries) (Batteries NOT Included)

Supported Systems: Android 8.0 or iOS 12.0 and above

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Features:

- Upgraded 3.5" TFT Color Screen & 25 Body Metrics
Experience advanced body composition analysis with the S400 Pro's 3.5" TFT color screen, displaying 25 comprehensive body metrics including weight, BMI, body fat rate, and muscle mass. The vibrant display offers high contrast and brightness, making it easy to view real-time data.

- Dual-Frequency BIA & High Accuracy
Utilizing dual-frequency BIA technology, the scale measures both intracellular and extracellular fluid resistance for highly precise results. Its correlation with professional DEXA standards exceeds 0.93, ensuring accurate readings for fat mass, visceral fat level, and more across a wide 0.1-150kg range.

- Smart MiHome App Integration & Bluetooth Gateway
Seamlessly connect to the Mijia App via Bluetooth or an optional Bluetooth gateway for automatic data sync and trend analysis. Customize the screen display by choosing which metrics to view and adjust brightness settings, all while tracking up to 36 user profiles.
Note: Please set the server of APP to China Mainland.

- User-Friendly Design & Large Capacity
Its spacious 300x300mm ITO-coated tempered glass surface eliminates the need for metal electrodes, accommodating various foot sizes. The scale can store 160 offline measurements, weigh items from 0.1-10kg, and supports ages 6-80. An optional heart rate test and baby-weighing mode provide even broader utility.

- Long-Lasting Battery & Real-Time Tracking
Powered by four AAA batteries, the S400 Pro delivers up to 150 days of battery life with daily usage. Combined with real-time data tracking, it simplifies healthy weight management by highlighting changes in weight, body fat percentage, and more, promoting balanced lifestyle choices.

Common Questions:


Q1: What does "Bluetooth gateway is not connected" mean?

1. A Bluetooth gateway is used to sync measurement data when the body fat scale is not connected to the app. If the Mi Home app says "Not connected to Bluetooth Mesh gateway", it does not indicate a malfunction; it simply means the scale is not connected to a Bluetooth gateway device.
2. This function requires a separate Bluetooth gateway device. If you do not have one at home, please ignore this message.
3. After first binding the scale, wait 1-5 minutes for the scale to automatically connect to the gateway. If it does not connect after 5 minutes, try unplugging and restarting the gateway.

Q2: What is a gateway? Which devices have gateway functionality?

1. A Bluetooth gateway device integrates both Wi-Fi and Bluetooth connectivity, allowing it to access the internet independently and help Bluetooth sub-devices connect online.
2. Visit https://home.mi.com/baike/index.html#/label/ability/688967186000000001 to see which products support Bluetooth gateway.
Q3: Why can't I find the scale when searching in the Mi Home app?
First, remove the scale from the Mi Home app, then follow these steps:
1. Open the battery cover and use a pin to press and hold the reset button for 7 seconds. After resetting, try binding the scale again with the Mi Home app. Note that the scale does not support the Xiaomi Sports Health app.
2. Make sure your phone"s operating system is updated to Android 8.0 or iOS 12.0 or above.
3. Ensure the Mi Home app is updated to iOS 8.7.204 or Android 8.7.703 or higher. If not, please update or reinstall.
Q4: How do I connect the Mi Body Fat Scale S400 Pro into the Mi Home app?
First, remove the scale from the Mi Home app, then:
1. Lightly step on the scale to wake it.
2. Open the Mi Home app, tap the
"
+
"
icon in the top right, select
"
Add device
",
and choose "Mi Body Fat Scale S400 Pro" from the list. Wait for the app to detect the scale.
3. Select the device, tap u201cConnect device,u201d and wait for a successful connection. If binding fails or the device cannot be found, press and hold the reset button for 7 seconds with a pin, then try again.
Q5: How to add the Mi Body Fat Scale S400 Pro into the Xiaomi Sports Health app? Does it support third-party apps?
The Mi Body Fat Scale S400 Pro only supports binding with the Mi Home app. It does not support the Xiaomi Sports Health app or other third-party apps.
Q6: Why can't the scale measure body fat sometimes?
1. Wipe your feet and the scale surface with a slightly damp cloth before trying again.
2. If it still fails, connect the scale to the Mi Home app and measure online. In the device page, select the user profile at the top left, tap
"
Measure
",
and stand on the scale barefoot with full contact.
Q7: Why can"t my family members measure body fat?
1. Each user must create an account and input personal information in the Mi Home app.
2. The scale only supports body fat measurements for users aged 6-80 with a weight range of 20-150kg.
3. If a user"s weight difference is within ±2kg of another user, offline body fat measurement is not supported. They can only measure online in the app.
4. Ensure both feet have full contact with the scale. Wiping feet and the scale surface with a slightly damp cloth can improve conductivity.

Notes:

1. Up to 160 Sets of Measurement Data: Without a Bluetooth connection, the scale can store 160 measurement records locally. Once it exceeds 160, the earliest records will be overwritten.
2. Supports Bluetoothu2122 Gateway: Requires a separate purchase. Check Mi Home App > Profile > Product Encyclopedia > Gateway Guide for compatible devices.
3. Customizable Screen Content: Through the Mi Home app, you can enable heart rate (off by default), manage trend cards (3 default items), and adjust screen brightness (default 50%).
4. Trend Data Items: You can select 0-6 trend items, including weight, body fat rate, muscle rate, body water, visceral fat level, and basal metabolic rate.
5. 25 Body Composition Metrics: Includes weight, heart rate, BMI, body score, body water, total body water, body fat rate, fat mass, protein mass, protein rate, muscle mass, muscle rate, bone mineral content, bone mineral rate, visceral fat level, basal metabolic rate, fat-free body weight, body type, estimated waist-to-hip ratio, body age, skeletal muscle mass, weight control, muscle control, fat control, and standard weight.
6. Heart Rate: Refers to the number of beats per minute in a calm, non-exercising state. The scale measures heart rate after body fat measurement. This feature is off by default and can be enabled in the Mi Home app.
7. Supports Storing 36 User Profiles: One device can bind to one main Xiaomi account, which can share the device with five other Xiaomi accounts. Both main and shared accounts can each create five sub-users, for up to 36 total users stored on the scale. Some users with weights within ±2kg of another user may need to measure online for accurate identification.
8. Small-Item Weighing: Weights from 0.1-10kg are recognized as small items, with an accuracy of 0.05kg. For items ≤5kg, step on the scale first, wait until it shows 0.00kg, then place the item for measurement.
9. 150-Day Battery Life: Based on laboratory tests by Yunmai. Actual performance may vary depending on usage habits, environment, and product differences. Under test conditions (22°C ambient temperature, 3 weigh-ins per day, heart rate off, 3 default trend cards, 35 seconds per weigh-in), the scale can last up to 150 days on four AAA alkaline batteries.
10. Suitable for Users Aged 6~80: Body fat measurement is supported for users 6~80 years old. Children under 6 and adults over 80 can only measure weight. Because teens grow quickly, results are for daily reference only.

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Package Included:

1 x Body Fat Scale