
The Xiaomi Mi Band series is an affordable fitness tracker that can monitor your daily activity and health metrics such as blood oxygen levels, stress, and sleep. The Mi Band 3 uses a built-in accelerometer and heart rate sensor to detect when you fall asleep and can track sleep duration, and sleep and wake times. To access your sleep data, you can use the Mi Fit app or third-party apps such as Zepp Life and Sleep as Android. While the Mi Band 3 cannot track REM sleep, newer models like the Mi Band 5 can, by using data from the accelerometer, gyroscope, PPG sensor, and respiratory data.
| Characteristics | Values |
|---|---|
| Sleep tracking accuracy | 70% |
| Sleep tracking features | Sleep quality analysis, sleep regularity, sleep duration, deep sleep total, sleep score, sleep stages, blood oxygen levels, stress, heart rate measurement, breathing quality |
| Sleep tracking apps | Mi Fit, Sleep as Android, Zepp Life, Xiaomi Wear, Mi Band Tools |
| Sleep tracking limitations | Does not track REM sleep cycle, does not track sleep if working night shifts, may not track brief periods of being awake during the night |
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What You'll Learn

Using the Mi Band with Sleep as Android
The Mi Band series by Xiaomi is an affordable and versatile option for tracking your daily activity and health metrics such as blood oxygen levels, stress, and sleep. While it may not be the most in-depth sleep-tracking solution available, it can still provide valuable insights to improve your sleep and overall night routine.
To enhance your sleep tracking experience with the Mi Band, you can use it in conjunction with a third-party sleep tracking application like "Sleep as Android". This application offers features such as sleep tracking, sleep cycle analysis, and smart alarms. By combining the capabilities of the Mi Band with Sleep as Android, you can benefit from accurate sleep tracking and smart alarms that wake you up during light sleep.
Here's a step-by-step guide on how to use the Mi Band with Sleep as Android:
- Integration Requirements: Ensure that your Mi Band model is compatible with Sleep as Android. Integration is available for Mi Band 7, 6, 5, 4, 3, 2, 1.0 (Color), and 1A (White). However, direct integration is not possible with the Mi Band 1S (Pulse) due to firmware restrictions.
- Third-Party App: Install a third-party app, such as "Notify for Mi Band" or "Tools and Mi Band" (also known as Mi Band Tools). These apps facilitate communication between Sleep as Android and the Mi Band.
- Enable Sensor Tracking: Open the Sleep as Android app and go to Settings > Wearables > Sleep Tracking. Enable the "Use Wearables" option to allow sensor tracking integration.
- Heart Rate Monitoring (Optional): If you want to include heart rate data in your sleep tracking, enable this feature in the Sleep as Android app. Go to Settings > Sleep Tracking > Wearables > Heart Rate Monitoring.
- Manual Sleep Tracking: With the Mi Band, you will need to manually start sleep tracking. Ensure your phone is connected to the Mi Band, and then initiate sleep tracking from the Sleep as Android app.
- Smart Alarm (Optional): Explore the Smart Alarm feature in Sleep as Android, which can gently wake you up during light sleep, leaving you feeling more refreshed.
- Review Sleep Data: Regularly review your sleep data in the Sleep as Android app. Analyze trends in your sleep duration, sleep stages, and overall sleep quality. Use this information to make informed adjustments to your sleep routine.
By following these steps, you can effectively utilize the Mi Band with Sleep as Android to track and improve your sleep patterns. Remember to keep your phone connected to the Mi Band and wear it correctly during sleep for optimal tracking accuracy.
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Improving sleep tracking accuracy
The Xiaomi Mi Band series is an affordable and capable sleep tracker. It can track daily activity and several health metrics like blood oxygen levels, stress, and the hours and minutes spent asleep. The Mi Band uses a built-in accelerometer to detect motion and a heart rate sensor to estimate when you fall asleep.
- Ensure that you are wearing the band correctly. It should be worn snug on your arm but not too tight.
- The Mi Band 3 has a specific time period in which it checks if you're asleep. It only labels a time period as "Awake" if you get out of bed and walk around. Therefore, if you wake up in the middle of the night, make sure to get out of bed and walk around for the band to register this period as "Awake".
- You can pair the Mi Band 3 with a third-party app like Sleep as Android to get more accurate sleep tracking and smart alarms. However, you may need to install another app like a notification & tools app for the Mi Band 3 to work with Sleep as Android.
- To increase the accuracy of sleep tracking, you can enable the "Automatic Heart Rate Monitoring and Sleep Assistant" feature in the Mi Fit app. Set the frequency of detection to 1 minute.
- The Mi Band 3 may not be suitable for shift workers as it only tracks sleep between 22:00 and 6:00.
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Sleep quality analysis
The Mi Band 3 can be used to track sleep data and monitor sleep quality. The Mi Band series uses a built-in accelerometer to detect motion and a heart rate sensor to estimate when you fall asleep. The Mi Band 3 uses a combination of a proximity sensor and actigraphy (actimetric sensor) to detect sleep. It also uses PPG for continuous heart-rate monitoring during sleep to track light and deep sleep more precisely.
The Mi Band 3 can be used in conjunction with third-party apps such as Sleep as Android to provide more accurate sleep tracking and smart alarms. The Mi Band 3 can also be used with the official Mi Fit app to track sleep data, although some users have reported issues with its accuracy. The Mi Band 3 may not detect brief periods of wakefulness during the night, such as when a user gets up to check their phone. It has also been noted that the Mi Band may not accurately differentiate between light and deep sleep stages.
To improve the accuracy of sleep data, it is recommended to wear the Mi Band correctly and review the data regularly to make changes to your sleep routine if needed. The Mi Band series can track several sleep metrics, including sleep duration, sleep and wake times, and blood oxygen levels. The data can be viewed through the Zepp Life app, which provides a summary of sleep information on its home screen, including sleep score, sleep duration, and deep sleep total, along with a graph displaying sleep stages.
The Mi Band 5 has been found to have an accuracy of 78% for identifying sleep and wake stages and a sensitivity of 89% for detecting sleep epochs, although it showed a specificity of only 35%. This suggests that while the Mi Band series can be a useful tool for tracking sleep, it may not provide completely accurate or comprehensive sleep quality analysis.
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Sleep regularity
The Mi Band 3 can be used to track sleep data and monitor sleep regularity. The device can track daily activity and health metrics such as blood oxygen levels, stress, and the hours and minutes spent asleep. It uses a built-in accelerometer to detect motion and a heart rate sensor to estimate when you fall asleep.
To improve the accuracy of sleep tracking, you can enable "Assisted sleep monitoring" in the settings. This increases the heart rate measurement frequency when the device detects that you are asleep. This is especially useful if you have set your heart rate monitoring interval to more than five minutes. To enable this setting, 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.
The Mi Band 3 can also be used in conjunction with third-party apps such as "Sleep as Android" to provide more detailed sleep tracking and smart alarm features. However, this requires the installation of additional apps such as a notification and tools app for the Mi Band 3 to work with Sleep as Android.
While the Mi Band 3 can provide valuable insights into your sleep patterns, it may not be as accurate as dedicated sleep-tracking solutions. It is important to review your sleep data regularly and make changes to your sleep procedure as needed. Additionally, the device may not capture all periods of wakefulness during the night, especially if you do not get out of bed.
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Using the Mi Fit app
To track sleep data on your Mi Band 3, you'll need to use the Mi Fit app on your phone. Here's a step-by-step guide on how to do it:
First, make sure you have the Mi Fit app installed on your phone. You can download it from the app store if you don't already have it. Open the app and set up your Mi Band 3 device by following the on-screen instructions. This may include pairing your device and giving the app the necessary permissions.
Once your Mi Band 3 is set up, you can start tracking your sleep data. Before you go to bed, make sure your Mi Band is charged and worn comfortably on your wrist. The band uses a built-in accelerometer to detect motion and a heart rate sensor to estimate when you fall asleep.
When you wake up, open the Mi Fit app on your phone. The app will notify you about the status of your sleep cycle. Click on the notification or open the app manually to view your sleep data. You can see the duration of your sleep, sleep quality analysis, and an overall sleep score.
The Mi Fit app also offers a "Sleep Animals" feature. This feature analyzes your sleep data for a week and assigns you a "Sleep Animal" that represents your sleep quality and patterns. It's a fun way to engage with your sleep tracking and potentially improve your sleep habits.
In addition to the Mi Fit app, you can also try using third-party apps like "Sleep as Android" for more advanced sleep tracking features. This app integrates with the Mi Band and uses the heart rate monitor and movement sensor to provide more detailed sleep analysis.
Remember, while the Mi Band 3 is a useful tool for tracking your sleep, it may not be as accurate as more specialized sleep tracking devices. However, by regularly reviewing your sleep data and making changes to your sleep habits, you can still use it to improve your sleep quality.
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Frequently asked questions
The Mi Band 3 can track sleep data such as sleep duration, sleep and wake times, and deep sleep tracking. To track your sleep, go to the Mi Fit app on your phone, tap on Profile, tap on your device name, scroll down and tap on Heart Rate Detection, tap on Detection Method, select Sleep Assistant, and then accept the battery life terms and click OK.
The sleep tracking accuracy rate is around 70% for the Mi Band. While the Mi Band is generous with its scores, its competitors like FitBit and Withings are too harsh. The Mi Band lacks nuance when recognizing sleep stages, but the total sleep duration is usually spot on or thereabouts.
One practical way to improve your sleep data’s accuracy is to wear the Mi Band correctly. You can also enable the Assisted sleep monitoring setting, which increases the heart rate measurement frequency when the Mi Band detects you’re asleep.

































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