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Xiaomi Body Composition Scale S400
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Monitor your health and your kids' health even easier. Have control over up to 25 body composition indicators and maintain the correct parameters of your health with improved measurement algorithms.
Xiaomi Body Composition Scale S400











*DEXA: Dual-energy X-ray absorptiometry (DEXA) is widely recognized as the gold standard for measuring body composition. It is widely used in hospitals, medical examinations and other professional institutional settings. When comparing test data measured by the scale with DEXA, the closer the correlation coefficient is to 1, the more accurate the measurement data is. DEXA emits low levels of radiation and cannot be used by pregnant women.
* Correlation coefficient ≥0.93 between Xiaomi S400 body composition scale and DEXA for fat mass measurement data: The data is from the Xiaomi S400 body composition scale accuracy test report based on dual energy X-ray absorptiometry (DEXA) given by Dr. Meitao and his research team at the China Institute of Sports and Health Sciences, Beijing Sports University. Test report number: BSU20220389.
*Report on the analysis of 25 body composition indicators: body weight, heart rate, BMI, body score, body water content, body hydration, body fat percentage, fat mass, protein mass, protein index, muscle mass, muscle mass index, bone mineral mass, bone mineral content, visceral fat content, basal metabolic rate, lean body mass, body type, estimated waist-hip ratio, body age, skeletal muscle mass, weight control, muscle control, body fat control, standard weight. Connect to Mi Home/Xiaomi Home App to view full body composition report.
*Health for the Whole Family: Allows users ages 6-80 to measure weight, body fat percentage and other body composition metrics. Children under 6 years of age and adults over 80 years of age can only measure their weight due to their specific physical conditions. Measurement data for teenagers is for informational purposes only due to their rapid growth.
*Store information for up to 36 family members: each device can be associated with 1 main Xiaomi account. The master account can share the device with 5 Xiaomi accounts using the device sharing feature. Additionally, 5 virtual users can be created from the main account and shared accounts, each of which can use the device. The scale can store information for up to 36 users at the same time. The full range of measurements is supported for the main account, shared accounts and virtual accounts. Users with a weight deviation within ±2 kg cannot be automatically identified and must be recognized manually via the Mi Home/Xiaomi Home app.
*Static heart rate monitoring: Refers to the number of heart beats per minute measured when the user is calm and still. Xiaomi S400 body composition scale can measure static heart rate after body fat measurement. Heart rate monitoring is turned on by default and can be turned off in the Mi Home/Xiaomi Home app > Device > Settings.
*Switch Mode: Modes can only be switched when the scale is connected to Mi Home/Xiaomi Home APP.
*Weighing small objects: Small objects means objects weighing between 0.1 kg and 10 kg. The accuracy of the scale is within 0.1 kg, and the minimum weight is 0.1 kg. For small items weighing ≤5kg, step on the scale to wake it up and place the item on the scale when the display shows 0.0kg. Objects weighing > 5 kg can be placed directly on the scale.
* Battery life 180 days: Battery life data comes from Yunmai laboratory and may vary due to differences in specific products, usage habits and environment during actual use. Please refer to the current terms of use. Testing conditions for this product: The scale was powered by 3 AAA batteries, at 25°C, and was used to take weight measurements 3 times a day for approximately 45 seconds each time. The longest observed battery life was 180 days.
*Key Benchmark Encouragement: "Key Benchmark Achievement" means that your measured weight, body fat and heart rate are within the normal range and a "√" is displayed next to the number. If the values are not within the standard range, they will not be displayed. The body weight reference value is determined based on BMI calculation, and the body fat reference value is determined based on algorithmic calculations. A range of 60–100 beats per minute is considered normal for the heart rate. To determine appropriate body weight and body fat patterns, the scale will identify a unique user before calculating and defining a standard range.
*Gateway device: Gateway devices must be purchased separately. Go to My > Product Introduction > Gateway Guide in Mi Home/Xiaomi Home App for more information about gateway devices.
*The heart rate monitoring function can be turned on or off via the app.
*The unit displayed on the scale can be set using the application.
*When connected to a Bluetooth® gateway, measurement data is automatically synchronized to the cloud for storage.
Notes
·Correct measurement method: It is recommended that the user wear light clothing and take measurements every day at the same time and under the same conditions. Measurements should be taken in the morning on an empty stomach to obtain more accurate data. Behaviors such as drinking plenty of water, eating, engaging in vigorous exercise, and showering may affect measurement results. It is recommended that the user follow the product instructions to ensure correct measurements as this may improve the accuracy of the measurement results.
·This product is not recommended for use by people with implanted medical devices (such as pacemakers and cochlear implants). The electric current used in this product does not cause harm to the human body, but pregnant women should use it with caution. If the user experiences discomfort and symptoms such as fever, cold, gastroenteritis, etc., significant errors may occur when measuring body composition indicators. Measurement results are for informational purposes only.
·Items weighing less than 10 kg will be considered small items and the resulting measurement data regarding their weight will not be recorded. If you want to weigh your baby, use the "Baby Holder" mode in the app to record his or her weight.
·This product is not a medical device. Measurement data and results are for informational purposes only. The health data and suggestions presented may vary depending on conditions and are not intended to be used as a basis for diagnosis or treatment.
Due to real-time changes in product batches and delivery factors, product images (including, but not limited to, product appearance, color and dimensions), videos and displays (including, but not limited to, backgrounds, user interfaces, illustrations, videos ) shown in the above website are for illustrative purposes only. Xiaomi may make improvements to the above content to provide accurate product information, specifications and features. Please refer to the actual product for details.
·Unless otherwise stated, dimensions, features, performance, specifications and other product information mentioned on this page are obtained from Yunmai Laboratory and were obtained under specified test conditions. They may vary slightly in actual use due to differences in specific products, software versions, usage conditions and environments. Please refer to the current terms of use.
Specifications
Model |
MJTZC01YM
|
Compatibility |
Android 8.0 and above
iOS 12.0 and above
Bluetooth 4.0 or higher
|
Communication |
Bluetooth 5.0
|
Weighing range |
100g - 150kg
|
Temperature range |
0°C ~ 40°C
|
Color |
White
|
Dimensions |
300x300x24.55mm
|
Libra |
1.45kg
|
Material of manufacture |
Glass
ABS
Aluminum
|
Dedicated application |
Xiaomi Home
|
Power supply |
3 × AAA battery (batteries not included)
|
Additional information |
Measurement units: kg / lb
Access to data from the application
Multifunction display
Displaying weight on the scale screen
|
Included in the set |
Libra
User manual
|
Monitor your health and your kids' health even easier. Have control over up to 25 body composition indicators and maintain the correct parameters of your health with improved measurement algorithms.
Xiaomi Body Composition Scale S400











*DEXA: Dual-energy X-ray absorptiometry (DEXA) is widely recognized as the gold standard for measuring body composition. It is widely used in hospitals, medical examinations and other professional institutional settings. When comparing test data measured by the scale with DEXA, the closer the correlation coefficient is to 1, the more accurate the measurement data is. DEXA emits low levels of radiation and cannot be used by pregnant women.
* Correlation coefficient ≥0.93 between Xiaomi S400 body composition scale and DEXA for fat mass measurement data: The data is from the Xiaomi S400 body composition scale accuracy test report based on dual energy X-ray absorptiometry (DEXA) given by Dr. Meitao and his research team at the China Institute of Sports and Health Sciences, Beijing Sports University. Test report number: BSU20220389.
*Report on the analysis of 25 body composition indicators: body weight, heart rate, BMI, body score, body water content, body hydration, body fat percentage, fat mass, protein mass, protein index, muscle mass, muscle mass index, bone mineral mass, bone mineral content, visceral fat content, basal metabolic rate, lean body mass, body type, estimated waist-hip ratio, body age, skeletal muscle mass, weight control, muscle control, body fat control, standard weight. Connect to Mi Home/Xiaomi Home App to view full body composition report.
*Health for the Whole Family: Allows users ages 6-80 to measure weight, body fat percentage and other body composition metrics. Children under 6 years of age and adults over 80 years of age can only measure their weight due to their specific physical conditions. Measurement data for teenagers is for informational purposes only due to their rapid growth.
*Store information for up to 36 family members: each device can be associated with 1 main Xiaomi account. The master account can share the device with 5 Xiaomi accounts using the device sharing feature. Additionally, 5 virtual users can be created from the main account and shared accounts, each of which can use the device. The scale can store information for up to 36 users at the same time. The full range of measurements is supported for the main account, shared accounts and virtual accounts. Users with a weight deviation within ±2 kg cannot be automatically identified and must be recognized manually via the Mi Home/Xiaomi Home app.
*Static heart rate monitoring: Refers to the number of heart beats per minute measured when the user is calm and still. Xiaomi S400 body composition scale can measure static heart rate after body fat measurement. Heart rate monitoring is turned on by default and can be turned off in the Mi Home/Xiaomi Home app > Device > Settings.
*Switch Mode: Modes can only be switched when the scale is connected to Mi Home/Xiaomi Home APP.
*Weighing small objects: Small objects means objects weighing between 0.1 kg and 10 kg. The accuracy of the scale is within 0.1 kg, and the minimum weight is 0.1 kg. For small items weighing ≤5kg, step on the scale to wake it up and place the item on the scale when the display shows 0.0kg. Objects weighing > 5 kg can be placed directly on the scale.
* Battery life 180 days: Battery life data comes from Yunmai laboratory and may vary due to differences in specific products, usage habits and environment during actual use. Please refer to the current terms of use. Testing conditions for this product: The scale was powered by 3 AAA batteries, at 25°C, and was used to take weight measurements 3 times a day for approximately 45 seconds each time. The longest observed battery life was 180 days.
*Key Benchmark Encouragement: "Key Benchmark Achievement" means that your measured weight, body fat and heart rate are within the normal range and a "√" is displayed next to the number. If the values are not within the standard range, they will not be displayed. The body weight reference value is determined based on BMI calculation, and the body fat reference value is determined based on algorithmic calculations. A range of 60–100 beats per minute is considered normal for the heart rate. To determine appropriate body weight and body fat patterns, the scale will identify a unique user before calculating and defining a standard range.
*Gateway device: Gateway devices must be purchased separately. Go to My > Product Introduction > Gateway Guide in Mi Home/Xiaomi Home App for more information about gateway devices.
*The heart rate monitoring function can be turned on or off via the app.
*The unit displayed on the scale can be set using the application.
*When connected to a Bluetooth® gateway, measurement data is automatically synchronized to the cloud for storage.
Notes
·Correct measurement method: It is recommended that the user wear light clothing and take measurements every day at the same time and under the same conditions. Measurements should be taken in the morning on an empty stomach to obtain more accurate data. Behaviors such as drinking plenty of water, eating, engaging in vigorous exercise, and showering may affect measurement results. It is recommended that the user follow the product instructions to ensure correct measurements as this may improve the accuracy of the measurement results.
·This product is not recommended for use by people with implanted medical devices (such as pacemakers and cochlear implants). The electric current used in this product does not cause harm to the human body, but pregnant women should use it with caution. If the user experiences discomfort and symptoms such as fever, cold, gastroenteritis, etc., significant errors may occur when measuring body composition indicators. Measurement results are for informational purposes only.
·Items weighing less than 10 kg will be considered small items and the resulting measurement data regarding their weight will not be recorded. If you want to weigh your baby, use the "Baby Holder" mode in the app to record his or her weight.
·This product is not a medical device. Measurement data and results are for informational purposes only. The health data and suggestions presented may vary depending on conditions and are not intended to be used as a basis for diagnosis or treatment.
Due to real-time changes in product batches and delivery factors, product images (including, but not limited to, product appearance, color and dimensions), videos and displays (including, but not limited to, backgrounds, user interfaces, illustrations, videos ) shown in the above website are for illustrative purposes only. Xiaomi may make improvements to the above content to provide accurate product information, specifications and features. Please refer to the actual product for details.
·Unless otherwise stated, dimensions, features, performance, specifications and other product information mentioned on this page are obtained from Yunmai Laboratory and were obtained under specified test conditions. They may vary slightly in actual use due to differences in specific products, software versions, usage conditions and environments. Please refer to the current terms of use.
Specifications
Model |
MJTZC01YM
|
Compatibility |
Android 8.0 and above
iOS 12.0 and above
Bluetooth 4.0 or higher
|
Communication |
Bluetooth 5.0
|
Weighing range |
100g - 150kg
|
Temperature range |
0°C ~ 40°C
|
Color |
White
|
Dimensions |
300x300x24.55mm
|
Libra |
1.45kg
|
Material of manufacture |
Glass
ABS
Aluminum
|
Dedicated application |
Xiaomi Home
|
Power supply |
3 × AAA battery (batteries not included)
|
Additional information |
Measurement units: kg / lb
Access to data from the application
Multifunction display
Displaying weight on the scale screen
|
Included in the set |
Libra
User manual
|
All shipping costs are in Saudi Riyals. The basic fee is SAR 25 for orders below SAR 299. Shipping is free for orders above SAR 299 but may vary by region. Processing times and delivery vary according to the shipping address and product availability.
For more details, please see our Shipping & Taxes page.
All shipping costs are in Saudi Riyals. The basic fee is SAR 25 for orders below SAR 299. Shipping is free for orders above SAR 299 but may vary by region. Processing times and delivery vary according to the shipping address and product availability.
For more details, please see our Shipping & Taxes page.
Return & Exchange Policy
We want you to be completely satisfied with your purchase. If you're not, we’re happy to offer a return or exchange for eligible items. Please see the details below:
- Eligibility: We are pleased to refund your Products in its original condition, with the price and packaging tags still in takt, within 14 days of the purchase date. Please ensure you provide your original receipt with the return.
How to Return Your Item:
- Step 1: Ensure that the item is in its original packaging with the price tags still attached.
- Step 2: Bring the item to our store or return it to us by mail along with your original receipt.
- Step 3: You will receive a full refund to the original payment method once we process your return, provided the return meets our eligibility criteria.
Exchanges:
- If you wish to exchange an item for a different item, you may do so within 14 days of purchase. Items must be in new condition.
Damaged or Defective Products:
- If you receive a product that is defective or damaged, please contact us within 7 days of receiving your order. We will offer an exchange or a full refund depending on the situation.
For more details, please visit our Return Policy page.
Return & Exchange Policy
We want you to be completely satisfied with your purchase. If you're not, we’re happy to offer a return or exchange for eligible items. Please see the details below:
- Eligibility: We are pleased to refund your Products in its original condition, with the price and packaging tags still in takt, within 14 days of the purchase date. Please ensure you provide your original receipt with the return.
How to Return Your Item:
- Step 1: Ensure that the item is in its original packaging with the price tags still attached.
- Step 2: Bring the item to our store or return it to us by mail along with your original receipt.
- Step 3: You will receive a full refund to the original payment method once we process your return, provided the return meets our eligibility criteria.
Exchanges:
- If you wish to exchange an item for a different item, you may do so within 14 days of purchase. Items must be in new condition.
Damaged or Defective Products:
- If you receive a product that is defective or damaged, please contact us within 7 days of receiving your order. We will offer an exchange or a full refund depending on the situation.
For more details, please visit our Return Policy page.
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