How to check the Bluetooth version on Xiaomi devices: from smartphones to smartphones TWS-headphone

The Bluetooth version on Xiaomi devices not only determines data speed, but also accessory compatibility, connectivity stability, and even power consumption. For example, Bluetooth 5.3 headphones will last longer on a single charge with a phone that supports this standard than with a Bluetooth 4.2 device. However, the manufacturer rarely indicates this information on the package or in basic settings - it has to be searched for independently.

Complicating the problem is that Xiaomi has dozens of smartphone models, smartwatches, headphones and even routers with different versions of the module. In this article, we will discuss all the current ways to check the version of Bluetooth – from the standard menus. MIUI To hidden engineering teams and technical specification analysis, you'll learn how to identify a version on a smartphone, TWS-headphones, fitness bracelets and other gadgets of the brand, even if it does not appear in the settings.

1. Verify the Bluetooth version through MIUI settings (the easiest way)

On most Xiaomi, Redmi and POCO smartphones, the Bluetooth version can be found through the standard system menu, which works on devices with MIUI 12 and later, but may not be available on budget models or older firmware.

Instructions:

• 📱 Open the Settings app (cog icon on the home screen).
• 🔍 Go to About Phone (or About Device on some models).
• 📋 Scroll down to the block All characteristics (or Technical data).
• 🔄 Find the Bluetooth string – next to it will be the version (e.g. 5.2 or 5.3).

If there's no Bluetooth in the specs, it doesn't mean it's not in the device. It's possible that the manufacturer hid that information in order to unify the interface, so move on to the following methods.

⚠️ Note: Some models (e.g. Redmi Note 10 Pro) may display an irrelevant version in the specs, one that is supported by hardware but not used in the current firmware. ADB (section).

2 How to find out the Bluetooth version on TWS-Headphones and smart watches Xiaomi

Xiaomi’s smart devices — such as Mi Band, Mi Watch, Xiaomi Buds or Redmi AirDots — rarely show the Bluetooth version in the mobile app, but this information can be found in technical specifications or through third-party utilities.

Methods of verification:

• 📦 Box or documentation: Some models (e.g. Xiaomi Buds 4 Pro) have Bluetooth on the package or in the booklet.
• 🌐 Official website: Go to the device page at mi.com → Specification section → Wireless connectivity.
• 📱 Mi Home or Xiaomi Wear app: For some gadgets (such as Mi Band 7 Pro) the version is displayed in the About Device section.
• 🔍 Third-party applications: Utility like Bluetooth Scanner (Android) or nRF Connect (iOS/Android) They can show a version when connected.

If none of the methods worked, try to find the device in the Bluetooth SIG database by model. For example, Redmi Buds 4 Active has a certificate with version 5.3, although this is not specified in the app.

3.Use of the engineering menu (for advanced users)

Xiaomi smartphones have a hidden engineering menu where you can find detailed information about the Bluetooth module, which works on most devices, but requires caution – wrong actions can disrupt the wireless modules.

How to open the engineering menu:

1. Open the Phone app.
2. Enter the code ##4636##
3. In the menu that appears, select Phone Information (or Phone Information).
4. Scroll down to the Bluetooth block – there will be a Bluetooth version string.

If the code doesn’t work, try alternatives:

• #225### for some Redmi models
• #36446337## - Opens the hardware testing menu.

⚠️ Warning: Do not change the settings in the engineering menu unless you understand their purpose! HCI Snoop Log can cause loss of connection to devices.

4. Verification through ADB (for technical users)

If standard methods don't work, you can use Android Debug Bridge (ADB), a tool for debugging Android devices, which provides the most accurate information, but requires a connection to a computer.

Step-by-step:

1. Download and install ADB Tools on PC.
2. Turn on USB Debugging on your smartphone: Settings → About Phone → MIUI Version (click 7 times to activate Developer Mode) → Return to Settings → Additional → For Developers → Debugging on USB.
3. Connect your phone to your computer and type in the command line: adb shell dumpsys bluetooth_manager
4. In the output, look for the getAdapterVersion bar, which will indicate the version (e.g. Bluetooth 5.2 (LE)).

Alternative command for more detailed information:

adb shell settings get global bluetooth_version

Install ADB Tools on PC|Enable developer mode on your smartphone |Activate debugging over USB|Connect your phone with the original cable |Run the command line on behalf of the administrator-->

Analysis of technical specifications by device model

If you can't identify the Bluetooth version softwarefully, the most reliable way to do this is to check the official specifications of your model, especially for older devices or those where the manufacturer has hidden this information.

Where to look:

• 📄 Xiaomi official website: Support section → [Your model] → Specifications. For example, for Xiaomi 13 Pro, Bluetooth 5.3 support is indicated.

Example for popular models:

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If a site says "Bluetooth 5.0" and the device actually supports 5.2, that's not a bug. Manufacturers often specify the minimum guaranteed version, whereas the actual version may be higher.

6. Third-party apps to check Bluetooth version

If you don't want to go through the settings or connect ADB, you can use specialized applications that analyze system information and output data about wireless modules.

The best Android apps:

• 🔧 DevCheck: Shows Bluetooth version in Hardware section → Bluetooth.

Example of a report from DevCheck:

Bluetooth:




Version: 5.2




Supported Profiles: A2DP, AVRCP, HFP, HSP, MAP, OPP, PAN, PBAP




LE Features: Peripheral, Central, Observer, Broadcaster

⚠️ Note: Some applications (e.g. Bluetooth Auto Connect) may show the wrong version if the smartphone emulates an older standard for compatibility. 2-3 Utilities and compare results.

7 Frequent problems and errors in determining the Bluetooth version

Even with the instructions, users are faced with difficulties, and consider typical situations and their solutions:

Problem 1: The settings show “Bluetooth 4.2” but the smartphone is new.

• 🔹 Reason: The firmware uses an outdated driver.
• 🔹 Solution: Update MIUI before the latest version or check through ADB.

Problem 2: The engineering menu is not open.

• 🔹 Reason: Manufacturer has blocked access to some regional firmware.
• 🔹 Solution: Use ADB third-party.

Problem 3: Apps show different versions of Bluetooth.

• 🔹 Reason: One application reads the hardware version, the other the software version.
• 🔹 Solution: Focus on data from ADB or official specifications.

Problem 4: Xiaomi headphones don’t connect to a smartphone with a newer version of Bluetooth.

• 🔹 Reason: Incompatibility of profiles (e.g. headphones support only A2DP, The phone requires LE Audio).
• 🔹 Solution: Update the firmware of headphones through the Mi Earphones app.

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If none of these methods work, your device is likely to use a proprietary Bluetooth implementation (e.g., on some models for the Chinese market), in which case you just have to trust the official specifications.

FAQ: Frequent questions about the version of Bluetooth on Xiaomi