Connecting Xiaomi fitness bracelet to Samsung Galaxy A51: a complete guide with error solutions

Xiaomi Mi Band fitness bracelets have long been the standard for tracking activity, sleep and health — and it’s no wonder that Samsung Galaxy A51 owners want to sync them with their smartphone. However, the connection process is not always smooth: users face pairing errors, notification problems or even a complete lack of response of the bracelet. In this article, we will analyze the step-by-step instructions for all Mi Band models (from the 4th to the 7th version), pay attention to setting up access rights on Android 11/12 (which is installed on the Galaxy A51), and also solve typical problems – from “doess see the device” to “does not arrive notifications”.

The Samsung Galaxy A51 feature in the context of connecting Xiaomi gadgets is aggressive battery optimization and background restrictions for third-party applications. This means that even after successfully pairing the bracelet can fall off after a few hours. We will tell you how to disable optimization for Mi Fitness, set up auto-start and avoid communication breaks. And if you have a bracelet older than the Mi Band 5, tips for manually adjusting notifications are different from new models.

1. Compatibility of Xiaomi fitness bracelets with Samsung Galaxy A51

Before you start connecting, make sure your bracelet is officially supported by the Mi Fitness app (formerly Mi Fit).The following is the compatibility table for the Galaxy A51 with the latest firmware versions:

Important: If you have an older Mi Band 4 bracelet (such as the Mi Band 3), it is possible to connect to the Galaxy A51, but you will need to use outdated versions of the Mi Fit (up to 4.6.0), which may conflict with modern versions of Android.

For Mi Band 6 and later, Xiaomi has introduced a mandatory binding to Xiaomi account (previously you could use a local profile), which means that without registering in the Mi Account ecosystem, data synchronization will not be possible. If you already have an account on another device (for example, on Redmi), you can use it - the bracelet data is linked to the profile, not to the phone.

2.Preparing Samsung Galaxy A51 for connection

Before pairing the bracelet, you need to configure the smartphone to avoid problems with the connection and operation of notifications.

Update Android to the latest version (check Settings → Software Update)

Install the latest version of Mi Fitness from Google Play

Turn on Bluetooth and Geodata (required for some bracelet models)

Turn off the power saving mode for Mi Fitness (see instructions below)

Remove old versions of Mi Fit or Zepp Life if installed-->

Pay special attention to the power saving settings. The Samsung Galaxy A51 default activates aggressive battery optimization, which can block background work of the Mi Fitness, to turn it off:

1. Go to Settings → Care for the device → Battery.
2. Slip on three dots in the upper right corner and select Settings.
3. Select Sleeping Apps and find Mi Fitness in the list.
4. Turn off the “Euthanize App” option (or add it to the exceptions).

We also recommend you to enable auto-run for Mi Fitness:

1. Open the Settings → Applications.
2. Find Mi Fitness, tap on it.
3. Select Autostart and activate the switch.

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If the bracelet periodically turns off after connecting, check the Adaptive Battery settings in the Settings menu. → Battery → Turn off this option for Mi Fitness.

3. Step-by-step instructions for connecting the bracelet

When the phone is ready, you can start pairing. The instructions are suitable for all Mi Band models, but there are nuances for bracelets older than version 5 (specified separately).

Step 1: Download and install Mi Fitness

• 📱 Download the latest version of Mi Fitness from Google Play (avoid third-party sources!).
• 🔓 When you first start, log in to Mi Account (create an account if you don't have one). Without that, Mi Band 6/7/8 bracelets won't connect.
• 🛠️ Allow all application requests: access to Geodata, Notifications, Contacts (for calls) and Warehouse (for backups).

Step 2: Activate the bracelet

• ⚙️ Charge the bracelet to 100% (even if it's new - sometimes a charge below 50% blocks pairing).
• 🔄 Reset the bracelet: To do this, hold your finger on the touch button for 10-15 seconds until the vibration appears.
• 📱 Turn on Bluetooth on your Galaxy A51 and make sure your phone is not connected to other devices (e.g. headphones).

Step 3: Device pairing

1. Open Mi Fitness and tap on Profile → Add the device.
2. Choose your bracelet model from the list (e.g. Mi Smart Band 7).
3. Press Hide and confirm the action on the phone.
4. Wait for the vibration on the bracelet - this is a signal of successful connection.

For Mi Band 4 and 5: After pairing, you may need to manually adjust notifications. Go to Mi Fitness → Device Profile → Notifications and manually select the apps you want to see on the bracelet.

4. Set up notifications and calls

One of the main reasons for buying a fitness bracelet is the ability to receive notifications from your phone, but on the Samsung Galaxy A51, this feature often crashes due to Android limitations.

For the Mi Band 6/7/8:

• 📲 In Mi Fitness, go to Profile → Your Device → Application Notifications.
• 🔄 Activate the Notifications switch and select apps (e.g. WhatsApp, Telegram, Gmail).
• 📞 For incoming calls, enable Call Alert and allow access to Contacts.

For the Mi Band 4/5:

• 🔧 Notifications are manually configured: in Mi Fitness, select Notification Management → Add apps.
• 🚫 Some apps (like Viber) may not appear in the list, in which case use Notify & Fitness from Google Play.
• 🔋 If notifications come with a delay, turn off battery optimization for Mi Fitness and Android System.

⚠️ Warning: On Android 12 (which can be installed on the Galaxy A51 via the update), notifications can be blocked by the system. To fix this, go to Settings → Applications → Mi Fitness → Notifications and turn on all types of alerts (including Sound and Vibration).

If you don’t receive notifications from a specific messenger (such as WhatsApp), check:

1. Notification permissions for the messenger in Android settings.
2. No notifications are blocked in the app itself (for example, on WhatsApp this is configured in Settings → Notifications).
3. No Do Not Disturb mode on the bracelet (checked by swipe down on the bracelet screen).

5. Solving common problems

Even after a successful connection, Galaxy A51 users are faced with common bugs, and here are the most common ones and ways to fix them:

If the bracelet is connected but does not display data:

• 🔄 Reset the bracelet (hold the 10 seconds button).
• 📱 Reinstall Mi Fitness (pre-untie the bracelet in your profile).
• 🌐 Check your internet connection – without it, data cannot be synchronized with Xiaomi servers.

⚠️ Warning: If the Mi Fitness bracelet stopped connecting after the Mi Fitness update, try rolling back to the previous version of the app. To do this, download APK from APKCombo (for example, version 5.3.0 works stably with Mi Band 6).

6. Alternative applications for connection

If Mi Fitness is unstable, third-party apps can be used, which support more features (like custom dials for Mi Band 4) and often work better with Samsung.

• 🔧 Notify & Fitness for Mi Band – Advanced notifications, support for old bracelets, custom vibrations.
• 🎨 Amazfit (for Mi Band 7/8) is the official app from Huami with better synchronization.
• 🔄 Mi Band Master is open source, support for unofficial firmware.

To connect the bracelet through Notify & Fitness:

1. Install the app from Google Play.
2. Open Notify & Fitness and resolve all requests (including Special Access).
3. Go to Devices → Add Mi Band and follow the instructions.
4. In the bracelet settings, activate Notifications and select apps.

The benefits of Notify & Fitness:

• Support for quick notification responses (even for Mi Band 5)
• Set up individual vibrations for each application.
• It works without binding to Mi Account (relevant for old bracelets).

⚠️ Warning: When using third-party apps, disable Mi Fitness to avoid conflicts. Also note that some features (such as SpO₂ on Mi Band 6) may not work properly.

7. Optimization of the bracelet with Samsung Galaxy A51

To keep the bracelet running steadily and the phone battery not running down too quickly, follow these tips:

• 🔋 Turn off Bluetooth background scanning for other applications (e.g. Google Fit or Samsung Health).
• 📴 If you don’t use constant heart rate monitoring, turn it off in the bracelet settings, which will save you a charge.
• 🔄 Regularly (every 1-2 weeks) reload the bracelet to reset the cache connection.

How to extend the life of the bracelet battery:

• 🌙 Set your sleep mode on the bracelet (in Mi Fitness → Screen → Sleep Mode).
• 📵 Disable notifications from unnecessary apps (such as games or news services).
• ⚡ Charge the bracelet to 80-90% – this reduces battery wear.

If the bracelet is discharged in 1-2 days:

• Check if continuous monitoring SpO₂ is enabled (disabled in Mi Fitness → Sleep Monitoring).
• Update the firmware bracelet - in the old versions were bugs with power consumption.
• Reset the bracelet to factory settings (in Mi Fitness → Device Profile → Reset).

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For maximum stability, turn off power saving for Mi Fitness and Bluetooth in the Samsung Galaxy A51 settings. This will prevent connection breaks.

FAQ: Frequent questions about connectivity