The Xiaomi Mi Band 4 is a budget-friendly fitness tracker that offers a wide range of features, including sleep tracking. Sleep tracking on the Mi Band 4 has been said to have improved greatly and can be a useful tool to help you improve your night routine. The Mi Band 4 can track sleep duration, sleep and wake times, and sleep quality. To turn on sleep tracking on the Mi Band 4, you will need to use the Mi Fit app. By accessing the Profile tab and selecting Smart Analysis, you can toggle sleep quality analysis on or off. Additionally, you can adjust settings such as night mode and response speed to enhance your sleep tracking experience.
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What You'll Learn

Using the Mi Fit app
To turn on sleep tracking on your Mi Band 4, you will need to use the Mi Fit app. The Mi Fit app has a variety of features that can be used to customise your Mi Band 4, including the ability to set up sleep tracking.
To get started, open the Mi Fit app on your smartphone and go to the Profile tab. From there, select your Mi Band device under the My Devices section. This will allow you to access the settings for your Mi Band 4.
To enable sleep tracking, go to Smart Analysis in the Mi Fit app. Here, you can toggle sleep quality analysis on or off. With sleep quality analysis turned on, you will receive extra data about your sleep, including a breathing quality score and blood oxygen saturation information during sleep.
In the Mi Fit app, you can also adjust the heart rate monitoring settings for your Mi Band 4. If you wish to conserve battery, you can turn off continuous heart rate tracking during the day, at night, or both. However, keep in mind that turning off heart rate monitoring during sleep will disable the assisted sleep monitoring feature, which increases the heart rate measurement frequency when the Mi Band detects you are asleep.
Additionally, the Mi Fit app allows you to customise the response speed and time settings for the lift wrist to view feature. You can choose between normal and sensitive response speeds and set the time windows during which the feature will be active. This can be useful if you do not want your Mi Band constantly going off at night.
To save battery life, you can also adjust the screen brightness settings in the Mi Fit app. Go to the Device Settings in the Profile tab and scroll down to Night Mode. Here, you can set the times for the screen brightness to lower, which will then sync to your Mi Band.
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Setting up Night mode
To set up Night Mode on your Mi Band 4, you'll need to download the Mi Fit app on your smartphone. Once you have the app, follow these steps:
- Open the Mi Fit app and go to the Device Settings.
- Navigate to the Profile tab and scroll down to find the Night Mode setting.
- Toggle on Night Mode and then select the "Schedule turn-on time" option.
- Adjust the start and end times for Night Mode to your preference.
- The Mi Band 4 will then sync with the app, and Night Mode will turn on and off according to the schedule you set.
Night Mode is a useful feature for controlling the brightness of your Mi Band 4's screen, especially during the night to avoid disturbances. Additionally, the Mi Fit app offers extra sleep insights through the Smart Analysis feature, which can be found in the Profile section. This feature provides data on sleep quality analysis and can be toggled on or off.
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Sleep quality analysis
The Xiaomi Mi Band series is a capable and affordable sleep tracker. The Mi Band 4 can monitor your sleep quality, sleep regularity, and sleep breathing quality. It can also provide you with valuable insights and suggestions to improve your sleep.
To get the most out of your Mi Band 4 sleep tracking capabilities, you can follow these steps:
- Ensure that you are wearing the band on your wrist during sleep. The device uses movement variables to detect when you fall asleep, so it is important to have it on your wrist to accurately capture these changes.
- Understand that the Mi Band 4 sleep-tracking function only works at night and cannot be detected during the day.
- Review your sleep data regularly. The Mi Band 4 tracks various sleep metrics, including sleep duration, sleep and wake times, and sleep quality analysis. By reviewing this data, you can identify patterns and make informed decisions to improve your sleep hygiene.
- Consider using a complementary app. While the Mi Band 4 has built-in sleep tracking capabilities, you can enhance its functionality by pairing it with a sleep tracking application like \"Sleep as Android." This app can provide more accurate sleep tracking and smart alarm features.
- Explore different apps for data visualization. Apps like Zepp Life are recommended for their insightful guidance and user-friendly display of health information. Zepp Life provides a summary of your sleep information right on its home screen, making it convenient to access your sleep data.
By following these steps and utilizing the features of the Mi Band 4, you can effectively track and analyze your sleep quality, gaining valuable insights to improve your overall sleep hygiene and well-being.
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Sleep regularity
The Mi Band 4 supports 24/7 heart rate monitoring and sleep tracking. It can track light and deep sleep as well as heart rate during sleep to help you adjust your sleep patterns. The Mi Band 4's sleep tracking function works only at night and is based on movement variables from falling asleep to sleeping to waking up. It records and determines whether a person is sleeping by detecting displacements and gravity changes as the body moves.
To get the most out of your Mi Band 4 sleep tracking capabilities, you can follow these steps:
- Enable "Assisted Sleep Monitoring" in the Heart Rate section of the Health Monitoring settings in the Zepp Life app. This increases the heart rate measurement frequency when the device detects you're asleep, providing more detailed data.
- Review your sleep data regularly in the Sleep Quality Analysis section of the app. This section provides insights into which factors, such as pre-sleep decisions, contribute to your sleep quality.
- Use the suggestions in the "Sleep Quality Analysis" section to make specific improvements to your sleep routine and sleep environment.
- Adjust your sleep schedule based on the data provided by the Mi Band 4 to optimize your sleep duration and quality.
By utilizing the sleep tracking features of the Mi Band 4 and following the suggestions provided by the app, you can improve your sleep regularity and overall sleep quality.
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Sleep breathing quality
The Xiaomi Mi Band series are capable sleep trackers. The Mi Band 4 can monitor three sleep stages: Deep, Light, and REM. It also calculates the time awake.
The Mi Band 4 cannot track sleep breathing quality. However, newer models of the Mi Band, such as the Mi Band 5, Mi Band 6, and Mi Band 7 Pro, have the capability to monitor sleep breathing quality. This is done through the use of respiratory data such as blood oxygen levels. This data is used in combination with REM sleep tracking to help users understand their sleep quality and make informed decisions about their sleep habits.
To enable sleep breathing quality monitoring on the Mi Band 6, you need to update the Mi Fit App to version 5.0.0. This update enables a sleep breathing quality feature on the fitness tracker.
To get a breathing quality score on the Mi Band, you will need to enable the setting. Open the Zepp Life app and tap the Profile tab. Select your Mi Band device under the My Devices section. Tap Health Monitoring. Toggle on Sleep breathing quality monitoring under the Heart Rate section.
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Frequently asked questions
To turn on sleep tracking on your Mi Band 4, you need to make sure it's turned on inside the Mi Fit app. Go to 'Profile', then 'Smart analysis' and toggle sleep quality analysis on.
To set up sleep tracking, you can download the Notify app, a smartwatch application that detects when you fall asleep and wakes you up using your Mi Band 4. It also tracks your sleep patterns and gives you statistics on how well you slept.
The Mi Band 4 uses a built-in accelerometer to detect motion and a heart rate sensor to estimate when you fall asleep.
To get extra sleep insights, open the Zepp Life app, tap the 'Profile' tab, select your Mi Band device under the 'My Devices' section, tap 'Health monitoring' and toggle on 'Assisted sleep monitoring' under the 'Heart rate' section.
To adjust the screen brightness for night-time use, go to the 'Device settings' in the 'Profile' tab on the Mi Fit app and scroll down to 'Night mode'. From there, you can set the times it turns on and off and it will then sync to the Mi Band.











































