Connecting Mi Watch Lite to Xiaomi Redmi 9: full instructions with photos and tips

Xiaomi’s Mi Watch Lite smartwatch has become a popular accessory due to its combination of functionality and affordable price. However, many Xiaomi Redmi 9 users face difficulties when connecting devices for the first time. In this article, we will examine not only the standard Bluetooth synchronization procedure, but also the nuances of setting up the Mi Fitness application, optimizing power consumption and solving typical errors.

The Mi Watch Lite + Redmi 9 pair is that both devices run on the Xiaomi ecosystem, which should theoretically simplify the connection. But in practice, users often face app freezes, no notifications or a quick battery drain after connecting. We analyzed owner feedback and test data to compile a current guide for MIUI 12.5-14 firmware.

1. Preparation of devices before connection

Before you start syncing, make sure both gadgets are ready to go. For the Mi Watch Lite, having a charge of at least 50% is critical - with a low battery level, the watch can interrupt the connection process. On Redmi 9, check:

  • πŸ“± Version. MIUI: Update to the latest stable version via Settings β†’ The phone. β†’ System Update: Minimum supported version for Mi Fitness β€” MIUI 12.0.3.
  • πŸ”„ Free space: Mi Fitness app weighs ~150MB, plus cache space and synchronization data. Free up at least 1GB of storage.
  • πŸ”’ Permissions: Enable access to Geodata, Notices and Contacts (required for calls and calls) SMS-warning).

Important: If you have previously used other fitness bracelets (such as Mi Band 5), remove them from the list of associated devices in Settings β†’ Bluetooth. Profile conflict can block the connection of new gadgets.

πŸ“Š What version? MIUI You're using Redmi 9?
MIUI 12
MIUI 12.5
MIUI 13
MIUI 14
I don't know.

2. Installation and configuration of the Mi Fitness application

The official Mi Watch Lite management app is Mi Fitness (formerly Mi Fit).

  • πŸ“² Google Play: Link (for global firmware).
  • 🌍 AppGallery: if you use Redmi 9 with Chinese firmware, download from the official Xiaomi store.
  • πŸ”— APK-File: only from trusted sources (e.g. APKCombo) if other options are not available.

After installation:

  1. Start Mi Fitness and select the region "Russia" (important for proper weather and metric units).
  2. Sign up through your Xiaomi account (if not, create in Settings β†’ Accounts β†’ Xiaomi).
  3. In the app menu, tap Profile β†’ Add device β†’ Watch β†’ Mi Watch Lite.

Install Mi Fitness | Register your Xiaomi | Charge Mi Watch Lite up to 50%+| Enable Bluetooth and geolocation on Redmi 9-->

⚠️ Note: if the error β€œServer is not available” appears when registering for Xiaomi account, try it:

πŸ”Ή Switch to mobile internet (turn off Wi-Fi). πŸ”Ή Change. DNS on the phone: Settings β†’ Wi-Fi β†’ Additionally. β†’ Settings IP β†’ Static β†’ DNS1: 8.8.8.8.

3. Step-by-step instruction for pairing devices

Now, to the process of connection, follow the instructions strictly by step.

  1. Activate Bluetooth on Redmi 9: Swipe down from the top edge of the screen and tap the Bluetooth icon.
  2. Turn on the watch: Press the button on the right side of the Mi Watch Lite for 3 seconds until the Mi logo appears.
  3. Run a search in Mi Fitness: click Add Device and select Mi Watch Lite from the list.
  4. Confirm the code: 6-digit code will appear on the watch and phone screen – make sure it matches, and tap Confirm.

The synchronization process will take 2-5 minutes.

  • πŸ“΄ Don't block the phone screen.
  • πŸ”‹ Do not turn off the Mi Watch Lite from charging (if connected).
  • πŸ“Ά Don’t switch to mobile data when using Wi-Fi.
What to do if the clock is not there?
If the Mi Watch Lite does not appear in the list of available devices: 1. Reboot the watch (press the button for 10 seconds). 2. In Mi Fitness, click Update the list (icon) πŸ”„ 3. On your phone, turn off/on Bluetooth manually. 4. Make sure the watch is not connected to another device (e.g., a tablet).

Once the app is successfully connected, it will offer to update the firmware of the watch, and we recommend that you agree, as new versions fix synchronization errors and add features (for example, monitoring). SpOβ‚‚ background).

4. Set up notifications and basic functions

By default, the Mi Watch Lite only shows basic call alerts, to customize notifications from instant messengers and other apps:

  1. In Mi Fitness, go to Profile β†’ Mi Watch Lite β†’ Notifications.
  2. Activate the Display Notifications switch.
  3. In the Applications section, select messengers (WhatsApp, Telegram), social networks and email clients.
  4. Set up the vibration and backlight of the screen when notifying in the submenu Alert Style.
FunctionHow to turn it onNotes
Sleep monitoringProfile β†’ Sleep β†’ Auto-trackingIt requires a watch to be worn while sleeping, and it syncs in the morning.
Measurement SpOβ‚‚Profile β†’ Health β†’ Oxygen in the bloodIt only works on firmware 1.0.4.54 and higher.
Heart rate controlProfile β†’ Heart β†’ Continuous monitoringReduces battery life by 20-30%.
Alarm clocksProfile β†’ Alarm clocks β†’ AddYou can adjust the vibration or the sound signal.

⚠️ Note: If notifications don’t come, check:

πŸ”Ή Android Settings allows Mi Fitness to display notifications (Settings) β†’ Annexes β†’ Mi Fitness β†’ Notifications). πŸ”Ή No energy saving restrictions: Settings β†’ Battery β†’ Battery mode β†’ Mi Fitness β†’ No restrictions.

πŸ’‘

To make notifications appear faster, turn off the Battery Saving mode in Bluetooth settings (Settings β†’ Connections β†’ Bluetooth β†’ Additional).

5. Optimization of energy consumption and operating time

The Mi Watch Lite is promised up to 9 days of autonomy, but in practice, when used actively, this figure is reduced to 3-5 days.

  • πŸ”‹ Turn off continuous heart rate monitoring (leave only manual measurements).
  • πŸŒ™ Set a dark theme of the dial (AMOLED-The screen consumes less energy).
  • πŸ“΅ Reduce the synchronization frequency to 1 time in 30 minutes (Profile) β†’ Mi Watch Lite β†’ Synchronization of data).
  • 🚫 Deactivate unnecessary notifications (e.g. from games or news apps).

To check the current battery consumption:

  1. On the clock, swipe up from the main screen.
  2. Pick Battery.
  3. Check the consumption schedule for the last 7 days.

πŸ’‘

The most energy-consuming mode – continuous monitoring SpOβ‚‚ Turning off these functions increases autonomy by 40 to 50%.

6. Solving common problems

Even with the right connection, Redmi 9 users are faced with common bugs, and we have compiled solutions for the most common cases:

Problem.Reason.Decision
The clock is connected, but the data is not synchronized.Conflict with MIUI background processesAdd Mi Fitness to Settings β†’ Applications β†’ Auto Launch
The connection is constantly breaking.Energy saving BluetoothTurn off Settings β†’ Battery β†’ Battery Mode β†’ Background Limitation for Mi Fitness
Vibration does not work when notifyingClock firmware failureUpdate the clock through Profile β†’ Update the firmware
Mi Fitness app flies outIncompatibility with the MIUI versionUpdate MIUI or install an older version of Mi Fitness (e.g. 4.6.0)

If none of the solutions worked, reset your clock settings:

  1. On the clock: Settings β†’ System β†’ Reset.
  2. On the phone: Remove the device in Mi Fitness and reconnect.

⚠️ Warning: Reset will delete all data from the clock (steps, sleep, workouts) and pre-sync the history with the app!

7. Additional features: music, weather, payments

Mi Watch Lite supports several hidden features that are rarely mentioned in official instructions:

  • 🎡 Music control: swipe left on the watch's home screen and use buttons Play/Pause, Works with Spotify, YouTube Music and the standard player MIUI.
  • 🌦️ Weather for 5 days: Add the weather widget through Settings β†’ Screen. β†’ Widgets. Data is taken from AccuWeather.
  • πŸ’³ Quick Payments: Link a Mir or UnionPay card to Mi Pay (available only for global firmware).
  • πŸƒ Autodefinition of training: include in the Profile β†’ Training. β†’ Auto-detection for running and walking.

To activate the voice assistant (only works on Chinese firmware):

  1. Install Google Assistant on your phone.
  2. In Mi Fitness, go to Profile β†’ Voice Assistant β†’ Set up.
  3. Choose Google Assistant as your primary service.
How to turn the screen on (AOD)?
The Always-On Display feature is not officially available on the Mi Watch Lite, but it can be activated via the Engineering Menu: 1. β†’ About the clock. 2. Tap 5 times on the model number. 3. In the menu that appears, select AOD β†’ Turn it on. ⚠️ This will reduce autonomy to 1-2 days!

8. Alternative management applications

If Mi Fitness is not working well, consider alternative programs:

AnnexPlusesCons
Notify & FitnessSupport for all notifications, customization of dialsPaid version (~300 β‚½), no Russian
Tools & Mi BandAdvanced vibration settings, data exportA complex interface, requires root for some functions
AmazfitStable synchronization, support for cloud backupNot all Mi Watch Lite features are available

To install alternative applications:

  1. Untie the watch from Mi Fitness (Profile β†’ Mi Watch Lite β†’ Delete the device).
  2. Install a new app and follow its connection instructions.
  3. Allow all permissions requested (especially Accessibility for notifications) when you first start.

⚠️ Note: Using third-party applications may result in:

πŸ”Ή Loss of warranty (if root is required). πŸ”Ή Incorrect operation of sensors (for example, a pulse meter). πŸ”Ή Battery discharge due to unoptimized code.

FAQ: Frequent questions about Mi Watch Lite and Redmi 9

πŸ”Ή Can you connect the Mi Watch Lite to two phones at the same time?
Officially, no. The watch only remembers one device, but you can manually reconnect it through Settings β†’ Bluetooth on your phone, and your workout and sleep data will be duplicated on both Mi Fitness accounts.
πŸ”Ή Why After Updating MIUI The clock stopped synchronizing?
This is a typical problem when switching to MIUI 13/14. Solution: Remove the Mi Fitness cache (Settings β†’ Applications β†’ Mi Fitness β†’ Memory β†’ Clear Cache). Turn off battery optimization for the app. Reboot your phone and watch. If it doesn't, roll back to the previous version of Mi Fitness (download APK with APKCombo).
πŸ”Ή How to transfer data to Mi Band on Mi Watch Lite?
There is no automatic data migration, but you can export history manually: In Mi Fitness, go to Profile β†’ Mi Band β†’ Data Export (available in the web version). Save the.csv file to Google Drive. Connect Mi Watch Lite and manually enter critical data (weight, goals by steps) through the Goals Profile. β†’ Sleep and training data cannot be transferred - they are tied to a specific device.
πŸ”Ή Why the clock does not display Cyrillic in notifications?
The problem is with the fonts in the firmware of the watch. Solutions: Update the watch to the latest version (1.0.5.70 and above supports Cyrillic). Install an alternative dial with support for Russian (for example, "Russian Digital" in Mi Fitness). Use the Notify & Fitness app - it correctly displays Unicode characters.
πŸ”Ή Can I swim with the Mi Watch Lite?
The watch has 5 protections ATM, It allows you to swim in the pool or in the rain: 🚫 It is forbidden to dive deeper than 50 meters. 🚫 Avoid hot water (bath, sauna) – this will damage sealed pads. 🚫 After bathing, wash the watch with fresh water and dry (especially the charging connector). To activate swimming mode: On the clock β†’ Training. β†’ Swimming β†’ Pool/Open water.