Connecting Xiaomi smart scales to a smartphone: full instruction with problem solving

Xiaomi’s smart scales are no longer exotic — they are now an affordable gadget for controlling body weight, composition, and even body water levels. The device does not find the smartphone, the application gives an error, and the indicators jump or do not save at all. In this article, we will analyze all the ways of synchronizing the scales Xiaomi Mi Scale, Smart Scale 2/3 and other models with a phone on Android or iOS, as well as solve typical problems.

It’s important to understand that the connection process depends not only on the scale model, but also on the firmware version, the region of purchase (Chinese or global), and even on whether you use Mi Fit or Zepp Life (formerly Mi Health).

If you're just unpacking the scales or trying to plug them in after you reset, start with the first partition. If the device was already in use but stopped syncing, go straight to the error section. There are some nuances for iPhone owners that we'll talk about, too.

1.What Xiaomi scale models support phone connection

Xiaomi has several smart scales, and not all of them work the same way. Here are the basic models that can be synchronized with a smartphone:

• 🔹 Xiaomi Mi Body Composition Scale 2 — The most popular model with analysis of body composition (muscle, fat, bone, water). 5.0 And he works with Mi. Fit/Zepp Life.
• 🔹 Xiaomi Smart Scale 2 is a simplified version without body composition analysis, only weight.

There are also regional versions of weights, for example, for the Chinese market (CN) Chinese models may not support Russian in the application or have server restrictions. You can check the version by the sticker on the case or box - look for inscriptions. CN, Global or RU.

If your model is not listed, check its name in the documentation or on the box. Libras without Bluetooth support (for example, some budget mechanical models) can not be connected to the phone.

2 What app you need to connect to: Mi Fit vs Zepp Life

Until 2022, all Xiaomi scales were connected through the Mi Fit app, but after rebranding, the company moved some of the devices to the Zepp Life ecosystem (formerly Amazfit).

• 📱 Mi Fit – supports Mi Body Composition Scale 2, Smart Scale 2 and older models.
• 📱 Zepp Life is a new app for Xiaomi and Amazfit, with advanced analytics (such as graphs for muscle mass changes). Supports the same models, but may require a firmware update for weights.

As a rule, scales are automatically determined in both applications, but there are nuances:

If you’re not sure which app to choose, start with Mi Fit, which works more consistently with older models. Zepp Life is suitable for those who want detailed statistics and already use other Amazfit or Xiaomi devices (such as bracelets).

⚠️ Note: If you used Mi Fit before and now switch to Zepp Life, the data will not be automatically transferred. → Settings → Export of data.

3. Step-by-step instructions: how to connect Xiaomi scales to the phone

The connection process takes no more than 5 minutes, if you follow the algorithm, and we'll break down the generic method that works for most models. If there's an error at some point, go to section 5.

Install the Mi Fit or Zepp Life app

Charge the scales (if there is a battery indicator)

Turn on Bluetooth on your phone

Make sure your phone is connected to the internet (for authorization)

Place the scales on a flat, solid surface-->

Step 1: Installation of the application and registration of the account

1. Download Mi Fit or Zepp Life from the official store (App Store or Google Play).
2. Launch the app and sign up: You can use a Xiaomi, Google or Apple account for Mi Fit ID. Zepp Life will require a phone number (Russian numbers are supported).

Fill out the profile: specify gender, height, age and purpose (weight loss, maintenance, etc.) These data are necessary for correct calculation of body composition.

Step 2: Adding the device to the application

1. Click on the Profile icon → Add the device (in Mi Fit) or Devices → Add (in Zepp Life).
2. Choose the Libra category or Smart Scale category.
3. Click on your scale model. If it's not on the list, select Another device and type the name manually.

Step 3: Synchronize the scales with the phone

1. Stand on the scale with bare feet (socks or slippers distort the performance), the display should appear 0.0 or flashing indicator.
2. Wait for the beep or vibration – this means that the scales are on and ready to pair.
3. In the app, click Connect or Sync. The phone will start searching for the device.
4. When the scales are detected, confirm the connection. Some models will require input PIN-code (usually 0000 or 1234).

Step 4: Calibration and first measurement

1. After connecting the scales may be asked to calibrate – stand on them and wait for the process to be completed (it will take 10-15 seconds).
2. Take the readings: weight, percentage of fat, muscle mass and other parameters will be displayed in the application.
3. Check that the data is preserved in the history (Measurement or Statistics section).

If the scales are not connected to the iPhone, try the following algorithm:

1. Remove the Mi app Fit/Zepp Life and reinstall it.
2. Reboot the iPhone.
3. Turn on the In-plane mode for 10 seconds, then turn it off.
4. Repeat the connection attempt.

Xiaomi Mi Body Composition Scale 2 models on iOS may require manual device addition via Other devices → Libra → Xiaomi, if the automatic search does not work.

⚠️ Warning: On jailbreak iPhones, Xiaomi scales may not work smoothly due to conflicts with modified firmware.Try disabling Bluetooth-related tweaks.

5. Common mistakes and their solutions

Even when connected properly, Xiaomi scales can behave unpredictably, and we’ve gathered common problems and ways to fix them.

If the scales are connected but show clearly incorrect data (for example, 5% fat at 100 kg weight), the reason may be:

• 🔋 Battery discharge (replace it even if the indicator is on).
• 👣 Incorrect position of the legs (stand on the electrodes with bare feet, do not move).
• 📱 Older version of the app (update Mi) Fit/Zepp Life in the store).

For resetting the weights to the factory:

1. Remove the battery for 30 seconds.
2. Insert it back and hold the on button (if any) for 10-15 seconds until the display blinks.
3. Repeat the connection process again.

6. Update of Xiaomi's firmware scales

Scale firmware is responsible for measuring accuracy, compatibility with new versions of applications, and bug fixing, and can be updated in two ways:

Method 1. Through the Mi app Fit/Zepp Life

1. Open the app and go to the section with your weights.
2. Click on the gear icon (Device settings).
3. Select firmware update (if the item is missing - firmware is relevant).
4. Confirm the update and wait until the end (the scales should be near the phone).

Method 2. Manually via Mi Home (for power users)

If the automatic update doesn’t work, try:

1. Install the Mi Home app (Android/IOS).
2. Add scales to Mi Home (they can appear as Unknown device).
3. Go to the device settings and check for updates.

After updating the firmware scales may require reconnection in Mi Fit/Zepp If the update is interrupted, reset the scales (section) 5) and try again.

⚠️ Warning: Do not turn off the scales or close the app during a firmware update.This may result in a loss of device functionality.If the scales stopped turning on after a failed update, contact Xiaomi with a check to buy.

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Updating your firmware solves 80% of problems with inaccurate body composition and synchronization errors. Always check the software's relevance before setting up new weights.

7. How to improve the accuracy of measurements

Even the most accurate scales can show different results depending on the conditions of use.

• ⏱️ Measurement time: Weigh yourself on an empty stomach in the morning after going to the toilet. The difference between morning and evening weight can be as much as 1-2 kg.
• 🏠 Surface: Use scales only on a hard flat floor (tile, laminated floor) carpet or soft coating distorts the readings.
• 👣 Leg position: Stand on the scales with bare feet, evenly spreading the weight.
• 🔋 Battery: A discharged battery causes errors in the calculation of body composition. Change it every 6-12 months.
• 📊 Calibration: Periodically check the scales with weights (such as a 5-pound water bottle).

For the analysis of body composition (Mi Body Composition Scale 2) it is important to:

• Do not measure immediately after exercise or eating (wait 2-3 hours).
• Do not use scales during menstruation (data on water and fat will be inaccurate).
• Enter current data (height, age, gender) into the profile - the calculation algorithm depends on this.

If the scales show knowingly incorrect data (for example, 0% fat or 100 kg of muscle), do:

1. Resetting the scales (section 5).
2. Update of firmware (section 6).
3. Recalibrate: Stand on the scale, then take off your legs and stand again.

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To check the accuracy of the scales, use a control weight, for example, stand on them with a dumbbell of known weight (5 kg, 10 kg) and compare the readings.

8.Alternative ways to use Xiaomi weights

Xiaomi scales can be connected not only to a smartphone, but also to other devices and services. Here are some useful integrations:

• 🌐 Control via Mi Home: Add scales to Mi Home and create automation. For example, when you are overweight, a smart lamp turns on.

For owners of Xiaomi Mi Band or Amazfit scales can be associated with a fitness bracelet:

1. In the Zepp Life app, add both devices to one account.
2. The data from the scales will be displayed in the statistics of the bracelet and vice versa.

If you use scales in the family, you can create several profiles in Mi Fit:

1. Go to Profile. → Family.
2. Add family members, indicating their height and age.
3. Now the scales will automatically recognize the user by weight and save data in his profile.

⚠️ Note: When using weights by multiple people, the weight difference between users must be at least 5 kg, otherwise the device may confuse profiles.

FAQ: Frequent questions about Xiaomi weights