Why sync Mi Band 3 with your phone and what it does
The Xiaomi Mi Band 3 fitness bracelet, released in 2018, is still one of the most popular activity tracking gadgets due to its reliability and availability. However, many users face difficulties when connecting the device to a smartphone for the first time. Without proper synchronization, you lose key features: call notifications, messages, sleep monitoring, and even the ability to update firmware.
In this article, we will not only analyze the standard connection procedure through the official Mi Fit application (or its alternative Zepp Life), but also consider the typical errors that occur on Android and iOS.
If you bought a used wristband or after a long period of downtime, you'll be able to avoid common problems, from not finding a device on the list of available devices to data failures, and for those who want to make the most of it, we've added tips for optimizing work and hidden features.
Preparing for connection: what to do before synchronization
Before you start pairing the Mi Band 3 with your phone, make sure all the preconditions are met, and neglecting this step is the main cause of 70% of the connection errors.
First, check the compatibility of your smartphone. The bracelet works with devices on Android 4.4+ or iOS 9.0+, but for stable operation, a version at least Android 6.0 or iOS 12 is recommended. On older systems, notifications and data synchronization problems may occur.
Second, update the firmware of the bracelet if it has been used. Outdated software often conflicts with newer versions of applications. To find out the current firmware version, go to Device Profile → About the bracelet in the Mi Fit app. If the version is below 1.6.0.54, it should be updated.
- 📱 For Android: Enable Bluetooth and Geodata (which are needed to accurately determine steps) and allow the Mi Fit app to access notifications in your phone settings.
- 🍎 For iOS: In addition to Bluetooth, check what is in Settings → Confidentiality → Geolocation services for Mi Fit set to mode When using.
- 🔋 Charging of the bracelet: the battery level should be at least 20.
- 📲 Remove old ties: If the bracelet has already been paired with another phone, reset it to factory settings (press the touch button for 10 seconds until vibration appears).
⚠️ Note: If you are using Xiaomi Mi Band 3 with a Huawei or Honor phone on the phone EMUI, You may need to turn off Bluetooth Energy Saving in your battery settings, otherwise the connection will break every 5-10 minutes.
Step-by-step: how to connect Mi Band 3 to Android
The sync process on Android takes no more than 5 minutes, if you follow a clear algorithm, and we break it down into steps with explanations for each step.
1. Install the Mi Fit app. Download it from Google Play. The alternative is Zepp Life (formerly Amazfit), but it has fewer features for the Mi Band 3. Once installed, sign up via Xiaomi Account, Google or Facebook.
2. Add a device. Open Mi Fit, click Profile → Add a device → Bracelet → Mi Smart Band 3. If your model isn't on the list, update the app or try Zepp Life.
3. Search for the bracelet. Make sure that the Mi Band 3 is on (the screen displays a time or Bluetooth icon). In the app, click Hide and wait for the bracelet to appear in the list of available devices. If the search is delayed, reboot the Bluetooth on the phone.
4. Confirmation of communication. The bracelet will be paired — tap the touch button for confirmation. Then the phone will open a window asking you to allow access to notifications and geodata. Be sure to agree, otherwise some of the functions will not work.
5. Profile settings. Specify your gender, age, weight, and activity target, and these are the data you need to correctly calculate calories and steps, and if you skip this step, the bracelet will use standard values, which will reduce the accuracy of the readings.
Xiaomi account is registered|Bluetooth and geodata enabled|Bracelet charged at least 20 times%|The old conjugation (if any) has been removed)|The latest version of Mi Fit is installed-->
Synchronization with iPhone: features and possible problems
Connecting the Mi Band 3 to the iPhone has its nuances due to the limitations of iOS. The main difficulty is working with notifications: Apple blocks direct data transfer from third-party applications, so some functions (for example, displaying text SMS) may not be available.
1. Install Mi Fit from the App Store. Download the app here. Important: iOS 15+ may require additional permission to track activity in Settings → Privacy → Tracking.
2. Device pairing. The algorithm is the same as on Android, but after connecting, check:
- In Settings → Bluetooth bracelet should be displayed as Connected.
- In Settings → Notifications → Mi Fit includes all types of alerts.
3. iOS restrictions. on the iPhone Mi Band 3 does not support:
- Displaying emojis in notifications.
Automatic data synchronization in the background (you need to open the application manually).
- Some widgets on the bracelet screen.
4. Solving the communication breakdown problem if the bracelet is permanently disconnected:
Open Settings → Bluetooth and forget the MI Band 3 device.
Reboot your iPhone and bracelet (press the button for 10 seconds).
- Repeat the pairing.
⚠️ Attention: On iOS 16+ There may be a "Device Unconnected" error due to the new Bluetooth protocol. Solution: Turn off Low Power Mode in the iPhone battery settings.
| Problem. | Reason. | Decision |
|---|---|---|
| The bracelet is not on the list of devices | Outdated firmware bracelet or phone | Update the bracelet software via Mi Fit or reset it to factory settings |
| Persistent communication breaks | Power-saving Bluetooth mode on your phone | Turn off battery optimization for Mi Fit in phone settings |
| No notifications coming. | Lack of permits for Mi Fit | Check the notification settings in the system and in the application itself |
| Error "Can't update the firmware" | Weak Internet connection or low bracelet charge | Connect to Wi-Fi and charge your bracelet to 50%+ |
Firmware Update: Why It Matters and How to Do It Right
Xiaomi Mi Band 3 with firmware below version 1.6.0.54 does not sync with the latest Mi Fit (2023-2026). If you see a device incompatible error, check the software version first.
1. How to find out the current version of the firmware:
- Open Mi Fit.
- Go to Profile. → Mi Smart Band 3 → The bracelet.
The firmware version will show the current version (e.g. 1.5.1.12).
Updating process:
Connect the bracelet to charge and make sure the battery level is >50%.
- In the Mi Fit app, go to the Device Profile → Firmware Update.
Wait for the file to load (weight ~5-10 MB) and confirm the installation.
Do not disconnect the bracelet from charging and do not close the application until the process is completed (it will take 3-5 minutes).
3. what to do if the update is suspended:
If the progress bar does not move for more than 10 minutes, reset the bracelet (press the button for 15 seconds).
Remove the bracelet from the list of devices in Mi Fit and repeat pairing.
If the error is repeated, try updating the firmware through the Notify & Fitness for Mi Band alternative app (available on Google Play).
What happens if you interrupt the firmware update?
Mi Band 3: How to unlock the full potential of the bracelet
Many users use the Mi Band 3 only to track steps and time, but the gadget has much more.
1. Music control. On the bracelet, you can switch tracks and adjust the volume if you turn this function on in Mi Fit (Bracelet settings). → Music management. Works with most players: Spotify, YouTube Music, Apple Music.
2. Phone search. If you lose your smartphone, double tap the touch button on the bracelet, the phone will make a loud sound (even if it is silent). → Phone search.
3. Vibration alarm clock. You can set up to 10 alarm clocks right on the bracelet, including repeating alarm clocks. Vibration is much more effective than a beep, especially if you're sleeping with your phone in another room.
4. Weather display. In Mi Fit, you can add a weather widget that will show temperature and forecast for 3 days, the data is updated every 6 hours when synchronized.
5. Sleep control with detailed statistics. The bracelet recognizes sleep phases (deep, light, wakefulness) and gives recommendations for improving rest. To see the charts, go to Status → Sleep.
- 🎵 Music lovers’ tip: If music management doesn’t work, check if you’ve allowed Mi Fit to access player notifications in your phone settings.
- 🔍 If you lost the Mi Band 3, Mi Fit has the function Find the bracelet – it will begin to vibrate.
- 💧 Water Protection: The bracelet has a level of protection IP68, But after bathing, it must be dried, otherwise the touch button may not work properly.
💡
If the screen of the bracelet becomes dull, wipe it with an alcohol solution (no more than 70%), which will remove fat deposits that reduce the sensitivity of the sensor.
Solving common connection errors
Even if you follow instructions correctly, users often face typical problems, and we've collected the most common errors and ways to fix them.
1. The bracelet is not defined in Mi Fit.
Make sure your phone is Bluetooth 4.0+ enabled (check Settings → About phone).
Reboot the bracelet (press the button for 10 seconds) and the phone.
Try connecting via another app, such as Notify & Fitness.
2. The connection is constantly breaking.
On Android: Turn off battery optimization for Mi Fit (Settings → Applications → Mi Fit → Battery → No Limits).
On iOS: Turn off Low Power Mode in the battery settings.
If the problem persists, reset the bracelet settings and repeat pairing.
3. Notifications are not coming.
Check if notifications for Mi Fit are allowed in your phone settings.
On Android, you also need to enable autorun for Mi Fit (Settings → Applications → Mi Fit → Autorun).
On iOS, notifications can be blocked by the system – try reinstalling the app.
4. The error "Device is not supported".
- That means the bracelet firmware version is outdated, upgrade it to Mi Fit or alternative utilities.
If the update is not available, try resetting the bracelet to factory settings and reconnecting.
💡
If none of these methods worked, check if you have a fake bracelet.The original Mi Band 3 has a serial number on the box and in the device settings in Mi Fit.