Evie Summers
Huawei's range of smartwatches includes a variety of health management features, with sleep tracking being a core feature of the Huawei Watch GT 4 and other models. The Huawei Health app can automatically track your sleep when you wear a compatible Huawei wearable device. The Huawei TruSleep™ sleep tracking technology uses PPG signals from Huawei's heart rate detection technology and the Cardiopulmonary Coupling (CPC) algorithm to track sleep. This allows the device to identify motion features, classify the user's motion levels, and incorporate heart rate fluctuations to track the user's wake-up time and sleep time. The Huawei Health app also provides sleep scores and tips to help users analyze and improve their sleep quality.
| Characteristics | Values |
|---|---|
| Sleep tracking technology | Huawei TruSleep™ |
| Sleep tracking period | 8:00 PM to 8:00 PM |
| Sleep data | Sleep time, wake-up time, sleep structure, sleep score, sleep trends over time, sleep breathing analysis, snoring and talking detection, sleep sounds |
| Sleep score | Graded out of 100 |
| Sleep monitoring results | Consistent with gold-standard medical sleep tracking devices (polysomnography) |
| Sleep tracking accuracy | Depends on the user's movement and heart rate |
| Sleep tracking capabilities | Enabled by Cardiopulmonary Coupling (CPC) algorithm and PPG signals from Huawei's heart rate detection technology |
| Sleep tracking requirements | Compatible Huawei wearable device, Huawei Health app, enabled Huawei TruSleep™ |
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What You'll Learn
Huawei TruSleep™ technology
Huawei TruSleep™ is a high-level sleep tracking technology that comes with the tools to help users improve their sleep quality. It is based on ACC and PPG data, which identifies motion features, classifies the user's motion levels, and incorporates heart rate fluctuations to track the user's sleep data. This includes sleep time, wake-up time, and sleep structure, before generating sleep scores and tips. The technology has been researched, developed, and optimised for four years and is currently the industry's leading technology based on infrared light to monitor sleep.
To enable TruSleep™, open Huawei Health and navigate to the device details screen. Go to Health monitoring > HUAWEI TruSleep™ and toggle it on or off to suit your preferences. TruSleep™ is enabled by default, and if manually disabled, sleep data cannot be obtained and sleep analysis will become unavailable.
To record your sleep, access the home screen of Huawei Health, and go to Sleep > Record your sleep. Place your phone within 50 cm of your pillow, and your phone will then monitor and record your sleep data. You can also play sleep music by touching the icons at the bottom of the screen. To exit sleep recording, hold down "Hold to end" for three seconds.
On the Sleep screen, touch the upper right corner and then Sleep settings to edit your schedule and customise general sleep settings such as Sleep sounds. You can also view your Sleep score, staging chart, and sleep details on your wearable device, provided that it has been updated to its latest version. This feature is only available on certain product models, such as the HUAWEI WATCH 4 Series.
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Sleep monitoring accuracy
The accuracy of sleep monitoring on Huawei watches depends on several factors. Huawei TruSleep™ sleep tracking technology uses PPG signals from Huawei's heart rate detection technology and the Cardiopulmonary Coupling (CPC) algorithm to track sleep. It identifies motion features, classifies the user's motion levels, and incorporates heart rate fluctuations to track sleep time, wake-up time, and sleep structure. The watch can also play sleep sounds to help the user relax and fall asleep.
To ensure accurate sleep tracking, the device should be worn on the non-dominant wrist while sleeping, with the screen facing upward, and it should fit snugly on the wrist. If the device is worn too loose or too tight, or in an incorrect way, the tracking signal may be affected, resulting in inaccurate sleep data. Additionally, the rear cover of the device should be clean, dry, and free of foreign objects, as sensors on the rear cover track physiological indicators and ECG signals.
The accuracy of Huawei's sleep tracking technology has received mixed reviews from users. Some users have reported that the sleep tracking feature is inaccurate, with the watch sometimes showing them as asleep when they are still awake. However, other users have found the sleep tracking to be quite accurate, even when trying to fool it. The Huawei Watch GT 2 Pro has been praised for its sleep tracking accuracy, while the GT 3 model has received some criticism for its sleep tracking capabilities.
It is important to note that the accuracy of sleep tracking may also depend on individual factors such as the user's sleep habits and body movements during sleep. For example, if a user turns over frequently or moves a lot during sleep, the device may record more wake-up times and a shorter sleep duration. Additionally, external factors such as lighting conditions and the user's position (lying down or upright) can also impact the accuracy of sleep tracking.
To improve the accuracy of sleep monitoring, users can enable Huawei TruSleep™ in the Huawei Health app and ensure that settings such as Continuous Heart Rate Monitoring, Continuous Skin Temperature Measurement, and Sleep Breathing Analysis are turned on. By utilising these features, users can gain a more comprehensive understanding of their sleep patterns and make informed decisions to improve their sleep quality.
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Sleep score and sleep stages
Huawei's sleep tracking technology, TruSleep, uses PPG signals from the heart rate detection technology and the Cardiopulmonary Coupling (CPC) algorithm to track sleep. CPC calculates sleep stages and respiratory quality based on continuous single-lead ECG signals. There is a close correlation between ECG and breathing, which is enhanced when you are in deep sleep and can vary depending on whether you are awake, sleeping lightly, or suffering from a health condition.
Huawei's sleep tracking technology identifies motion features, classifies the user's motion levels, and incorporates heart rate fluctuations to track the user's wake-up time and sleep time. The sleep tracking period is from 20:00 of the current day to 20:00 of the next day. Any sleep generated from 20:00 to 00:00 of the current day is recorded as the next day's sleep.
The Huawei Health app provides a sleep score out of 100, which is a quick reference for the quality of your rest. A low sleep score (below 80) can indicate areas that need improvement. While sleep duration is the key metric, it is also worth checking data such as deep sleep continuity and wake-up times. Huawei smartwatches track total sleep duration, time spent in light sleep, deep sleep, and REM sleep.
To use Huawei Health sleep tracking, you will need a compatible Huawei wearable device. All Huawei smartwatches, including the Huawei Watch GT 4, will track sleep out of the box. You may also need to turn on more advanced aspects of Huawei sleep tracking. Go to the Huawei Health app > Devices > choose your device from the list. In settings, go to Health Monitoring. From there, ensure that Huawei TruSleep is enabled. Also, check for settings such as Continuous Heart Rate monitoring, Continuous skin temperature measurement, and Sleep breathing analysis.
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Sleep breathing analysis
Huawei's TruSleep sleep tracking technology uses PPG signals from its heart rate detection technology and the Cardiopulmonary Coupling (CPC) algorithm to monitor sleep. The CPC algorithm calculates sleep stages and respiratory quality based on continuous single-lead ECG signals. There is a close correlation between ECG and breathing, which is enhanced when you are in deep sleep.
The Huawei wearable device identifies motion features, classifies the user's motion levels, and incorporates heart rate fluctuations to track the user's sleep data. This includes sleep time, wake-up time, and sleep structure. The device will need to identify motion to determine whether you are asleep. If you turn over frequently or move a lot during sleep, the device may record more wake-up times and a shorter sleep duration. It is recommended that you wear the device on your non-dominant wrist while sleeping, for optimal accuracy.
The Huawei device uses a multi-modal fusion algorithm model to map sleep and body movements, heart rate, and heart rate variability (HRV) to enhance sleep tracking accuracy. The technology focuses on five major sleep issues: difficulty falling asleep, frequent interruptions during sleep, insufficient sleep, irregular sleep schedule, and poor sleep quality.
To ensure accurate sleep tracking, the device should be worn with the screen facing upward and should fit snugly on the wrist. It is recommended to be worn at least one-finger width above the wrist. The rear cover of the device should be clean, dry, and free of foreign objects. The device should be attached to the wrist comfortably, with the monitoring area in contact with the skin.
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Sleep tracking mode
Sleep tracking is a core feature of the Huawei Watch GT 4 and other Huawei smartwatches. The Huawei Watch GT 2 Pro, for example, offers a number of health management features, including Sleep tracking, Sp02 measuring, ECG, heart health research, and more. The Sleep tracking mode records your sleeping data for a single day, measured from 8:00 PM the night before to 8:00 PM of that day for a total of 24 hours.
Huawei TruSleep is enabled by default. If manually disabled, sleep data cannot be obtained and sleep analysis will become unavailable. To enable it, open Huawei Health, navigate to the device details screen, go to Health monitoring > HUAWEI TruSleep, and toggle it on or off to suit your needs.
Huawei TruSleep is a high-level sleep tracker that comes equipped with the useful tools to improve sleep quality on a systematic basis. With Huawei TruSleep, your watch will be able to match your heart rate and breathing data to your sleep, and recognize sleep stages (including wake, REM, light sleep, and deep sleep) with a high degree of precision, for comprehensive monitoring. Huawei TruSleep uses the PPG signals from Huawei's heart rate detection technology rather than ECG signals, as well as the Cardiopulmonary Coupling (CPC) algorithm, to equip wearable devices such as watches/bands with sleep tracking capabilities.
The Huawei Health app can automatically track your sleep when you wear a compatible Huawei wearable device. You can view your Sleep score, staging chart, and sleep details on your wearable device, provided that it has been updated to its latest version. This feature is only available on certain product models, such as the HUAWEI WATCH 4 Series.
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Frequently asked questions
To set up sleep tracking, you will need a compatible Huawei wearable device. All Huawei smartwatches, including the Huawei Watch GT 4, will track sleep out of the box. Go to the Huawei Health app > Devices > choose your device from the list. In settings, go to Health Monitoring and enable Huawei TruSleep. You can also check for settings such as Continuous Heart Rate monitoring, Continuous skin temperature measurement, and Sleep breathing analysis.
Huawei TruSleep sleep tracking technology uses PPG signals from Huawei's heart rate detection technology and the Cardiopulmonary Coupling (CPC) algorithm to track sleep. The Huawei wearable device identifies motion features, classifies the user's motion levels, and incorporates heart rate fluctuations to track the user's sleep data, including sleep time, wake-up time, and sleep structure.
The accuracy of the sleep tracking on the Huawei Watch varies according to user reviews. Some users have reported that the device accurately recorded their sleep patterns, while others have stated that the sleep monitor is a "joke". It is recommended that you wear your device on your non-dominant wrist while sleeping for optimal accuracy.
The sleep tracking feature on the Huawei Watch provides users with a comprehensive analysis of their sleep patterns. It tracks total sleep duration, time spent in light sleep, deep sleep, and REM sleep, wake-up times, breathing quality, and a sleep score. This information can help users identify areas where they can improve their sleep quality.
