Why you need a smart scale and what Xiaomi Smart Scale can do
Xiaomi Smart Scale is not just a weight measurement device, but a full-fledged body composition analyzer that integrates into the Mi Home ecosystem. It defines 13 key parameters: from body mass index (BMI) to visceral fat, muscle mass and even bone tissue. But to get accurate data, it is not enough just to stand on a platform — you need to properly configure the device, synchronize it with your smartphone and take into account the nuances of measurements.
In this article, you’ll find step-by-step instructions on how to connect scales to an app, how to interpret the results, and why readings can differ from mechanical scales. We’ll also reveal Xiaomi’s unique Smart Scale 3 calibration algorithm, which automatically corrects errors when changing the floor covering, a feature that is often overlooked even in official manuals.
If you’ve just unpacked a box or have been using scales for a long time but doubt the accuracy of the data, this article will help you get a handle on everything from basic setup to advanced features like family mode or exporting history to Google Fit.
Set and specifications: what is in the box and what to look for
The standard equipment of Xiaomi Smart Scale (any model – 2, 3 or Pro) includes:
- 📦 Scales themselves with a touch panel made of tempered glass (thickness - 6 mm in the Pro model).
- 🔋 4 type batteries AAA (in some versions - built-in battery for 200 mAh).
- 📄 A short guide in several languages (Russian is not available in all parties).
Key technical parameters that affect accuracy:
| Characteristics | Smart Scale 2 | Smart Scale 3 | Smart Scale Pro |
|---|---|---|---|
| Maximum loading | 150 kg | 150 kg | 200 kg |
| Measurement error | ± 100 g | ±50 g | ±50 g |
| Number of sensors | 4 | 4 (enhanced) | 8 (double layer) |
| Support for Wi-Fi | No. | No. | Yes (5GHz) |
Note that the Smart Scale 3 and Pro models are equipped with automatic calibration, which is activated when you first turn on. If you bought a used scale, be sure to reset to the factory settings (for this, in the section on reset). counterfeits often have blurred markings or no QR-plug-in.
Connecting scales to the Mi Home application: step-by-step instructions
To start transferring data to your smartphone, you need to link it to your Xiaomi account through the Mi Home app (or Mi Fit for older models).
- Install the app: 📱 For Android: Download Mi Home from Google Play. 🍎 For iOS: Find the App Store (requires iOS 10.0)+).
Register an account
If you don’t already have a Xiaomi profile, create it via email or phone number, and it’s important to link the same account as other devices in the ecosystem (like Redmi) so that the data syncs automatically.
Add the device.
Click + → Add device → Libra. Select your model from the list. If it is not available, update the app or check the region of the account (should be Russia or China).
Activate Bluetooth
Libras connect via BLE 5.0, so turn on Bluetooth on your smartphone and allow Mi Home access to geodata (this is an iOS requirement for finding devices).
Once you've successfully tied the scales, they'll appear on the device list, and the first dimension will start calibrating -- stand on the platform and wait 5 to 7 seconds for your weight to appear on the screen, and if the process is stalled, take your legs off and try again.
☑️ Checklist before first use
How to weigh yourself: 7 rules for accurate data
Even the most advanced scales will fail to perform well if you violate the measurement conditions.
- ⏰ Time of day: Weigh yourself on an empty stomach in the morning after going to the toilet, the difference between morning and evening weight can be as high as 1-1.5 kg.
- 👣 Pose: Stand still, legs shoulder wide, weight evenly distributed. Don't lean on walls or furniture.
- 🧘 Condition: Do not weigh yourself after intense training or bathing procedures - skin moisture distorts impedance analysis.
- 📱 Synchronization: keep your smartphone close (within a radius of 2-3 meters), otherwise the data may not be saved.
A common mistake is that users are standing on scales with socks or slippers, which increases the margin of error to 300 to 500 grams due to the uneven distribution of pressure. Always weigh with your bare feet on a dry surface.
⚠️ Note: If you are using Smart Scale Pro with Wi-Fi feature, make sure the scales are connected to a 5GHz network. 2.4GHz networks can cause sync delays of up to 10 minutes.
To analyze the dynamics, weigh in at the same time. The Mi Home app builds the graphs automatically, but you can export the data to Excel via Settings → Export data.
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If the scales show a Lo error, don't use alkaline batteries, they discharge quickly. The best option is a nickel-metal hydride (Ni-MH) battery with a capacity of 800-1000 mAh.
Decoding indicators: what do the numbers in the annex mean
Xiaomi scales measure not only weight, but also other body parameters through the bioimpedance analysis (BIA) method.
- 📊 BMI: Weight-to-height ratio: 18.5-24.9, values below 18.5 indicate mass deficit, over 30 indicate obesity.
- 💪 Muscle mass: percentage of muscle in the body; for men, 38-50%; for women, 28-38%; low values may indicate sarcopenia (loss of muscle with age).
- 💧 Water level: optimal 45-65%, lower than 45% indicates dehydration, which affects metabolism.
- 🍖 Visceral fat: fat around internal organs, up to 10, up to 15, increases risk of diabetes and heart disease.
It is important to understand that the accuracy of impedance analysis depends on hydration, time of day and even the phase of the menstrual cycle (in women), for example, 3-5 days before menstruation, the water level in the body increases by 1-2%, which distorts the readings of fat mass.
| Parameter | Normal for men | Norm for women | What to do with deviations |
|---|---|---|---|
| Bone mass | 3–5% | 2–4% | Increase your calcium and vitamin D intake |
| Primary exchange (BMR) | 1500–1800 kcal | 1300-1600 kcal | Adjust your diet or increase physical activity |
| Metabolic age | ±5 years from the real | ±5 years from the real | Take a medical examination with a difference of >10 years |
⚠️ Note: If the scales show unrealistic values (for example, muscle mass 70% or water level 80%), reset the settings to the factory.
Why does Xiaomi’s scale show different weights when measured again?
Family Mode and Multiple Users: How to Set Up Profiles
One of the key benefits of Xiaomi Smart Scale is its multiplayer support, which automatically recognizes a person by weight (with an error of ±3 kg) and links the data to their Mi Home profile.
- Open the Mi Home app and select your scales.
- Go to Settings. → User management.
- Click Add User and enter data (gender, height, age).
- Ask a family member to stand on the scale for calibration.
The maximum number of profiles is 16 (for Smart Scale Pro) or 8 (for Smart Scale 2/3).If the scales confuse users with a similar weight, manually select the profile in the application before measuring.
An important nuance: for children under 10 and older adults over 70, the bioimpedance analysis may not be accurate, in which case, disable the extended metrics in the profile settings, leaving only weight.
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If you have a pregnant woman in the family, create a separate profile for her and turn off the visceral fat analysis - this indicator will be incorrect due to physiological changes.
Solving problems: connection errors, resetting and calibration
Even reliable technology sometimes fails, and let's look at the typical problems and the ways to fix them.
- 🔄 Libras not turned on: Check the batteries (even if they are new - factory defect is possible). If the indicator does not burn, try resetting: flip the scales and press the Reset button (the hole next to the battery compartment) with a pin for 5 seconds.
- 📵 Not synced with phone: Make sure the Mi Home is the right region (not the US or Europe, but Russia/China). VPN — It can block the connection to Xiaomi servers.Reset the smartphone and scales (remove the batteries for 30 seconds).
- ⚖️ Indications jump or overestimate: Put the scales on a hard surface (not on the carpet!). If the floor is uneven, use adjusting legs (company with Smart Scale Pro). To calibrate, stand on the scale and hold the weight for 10 seconds, the device will retain the reference value.
If nothing helps, update the firmware of the scales through Mi Home:
- Open the device card.
- Press. ⋮ → Update firmware.
- Wait until the process is completed (don’t interrupt!).
⚠️ Warning: After resetting the settings, all the data from the scale memory will be deleted, but the history in Mi Home will remain if the device was linked to the account.