The Apple Watch does have a sleep tracker. Users can wear the watch to bed to track their sleep and receive sleep data. The watch can also be used to create sleep schedules and set sleep goals. However, some users have questioned the accuracy of the sleep tracking feature, with some preferring to use other devices or apps for sleep tracking.
| Characteristics | Values |
|---|---|
| Sleep tracking | Available on watchOS 8 or later |
| Sleep tracking apps | SleepWatch, Sleep, Sleep on iPhone |
| Sleep tracking features | Sleep schedules, sleep goals, sleep trends, sleep stages, sleep history, sleep focus, smart alarms, bedtime suggestions, sleep scores |
| Sleep tracking accuracy | Varies, some users report poor accuracy, especially for deep sleep tracking |
| Comparison with Fitbit | Fitbit is preferred by some users for sleep tracking due to its specialized algorithm |
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What You'll Learn

Apple Watch does track sleep
To set up sleep tracking, users can go to the Apple Watch app on their iPhone, tap My Watch, and then tap Sleep. Here, users can turn on sleep tracking and charging reminders. It is recommended to ensure that the Apple Watch is charged to at least 30% before bed. Additionally, users can create multiple sleep schedules, such as one for weekdays and another for weekends, and set up sleep goals, bedtime, and wake-up times.
Apple Watch also offers a Smart Alarm feature, which can wake the user during a light state of sleep. Many people find it easier to awaken during light sleep. The Apple Watch can also provide adaptive bedtime suggestions by learning the user's routine and optimising their sleep rhythm.
Third-party apps, such as SleepWatch, are also available for sleep tracking on the Apple Watch. These apps can provide additional insights and analysis of sleep patterns and habits.
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$123

Sleep tracking accuracy
The Apple Watch does have a sleep tracking feature, which is available on watchOS 8 or later. To use this feature, the watch must be charged to at least 30% before bed and worn for at least 1 hour each night. The Sleep app on the Apple Watch allows users to create sleep schedules and set sleep goals. The watch can also estimate the time spent in each sleep stage—REM, Core, and Deep—and display sleep trends over the past 14 days.
However, the accuracy of the Apple Watch's sleep tracking feature has been questioned by some users. Some have reported discrepancies between the Apple Watch's sleep data and their own experiences, with the watch sometimes reporting significantly less deep sleep than expected. In addition, when compared to other sleep tracking devices and apps, the Apple Watch's sleep tracking data can vary widely. For example, in one case, the Apple Watch reported 46 minutes of deep sleep, while another app claimed 2.5 hours.
It is important to note that no app or watch can accurately measure sleep stages without actually tracking brainwaves. The Apple Watch, like other sleep tracking devices, uses motion detection and algorithms to estimate sleep stages. While it may not be perfectly accurate, the Apple Watch's sleep tracking feature can still provide valuable insights into a user's sleep habits and overall health.
Some studies have been conducted to validate the accuracy of various consumer sleep trackers (CSTs), including the Apple Watch. One study compared 11 different CSTs, including the Apple Watch 8, with in-lab polysomnography. The results showed that specific CSTs, including the Apple Watch, exhibited substantial agreement with polysomnography, indicating their potential application in sleep monitoring.
Another study by "The Quantified Scientist" analysed the Apple Watch algorithm for sleep tracking and rated it as the best wearable for sleep tracking. However, it was noted that the Apple Watch consistently reported lower deep sleep scores than other algorithms and than what is considered normal for healthy adults. This discrepancy requires further investigation.
Overall, while the Apple Watch's sleep tracking feature may not be perfectly accurate, it can still be a useful tool for users to monitor their sleep and work towards improving their sleep habits and overall health.
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Sleep tracking alternatives
Sleep tracking with Apple Watch is a great way to gain new insight into your sleeping habits and trends over time. The Sleep app on Apple Watch allows you to create sleep schedules to help you meet your sleep goals. However, the sleep insights are less advanced than many other sleep trackers. This is where third-party sleep-tracking apps come in.
SleepWatch by BodyMatter is one of the best Apple Watch apps for sleep tracking as it seamlessly integrates with the watch and automatically collects data. The app gives a sleep score to measure how well you slept and provides an in-depth analysis based on the length of sleep, whether you were in light, deep, or disrupted sleep, and variations in heart rate throughout the night.
AutoSleep is another popular third-party sleep-tracking app for Apple Watch. It provides some of the most in-depth data, including a detailed look at sleep, sleep quality, heart rate, deep sleep, and much more. AutoSleep uses a system of rings to help you monitor those key statistics. The main interface shows you rings for sleep, sleep quality, deep sleep, and bpm.
Sleep++ is a free app that offers a detailed look at your sleep habits over the past few days. It also provides data on sleep trends, cycles, phases, and a detailed timeline of your sleep, including when you were restful, restless, and awake. It also has a new “Readiness Score,” which makes it easy to know when you should take it easy and recharge for the next day.
Oura is a comprehensive sleep tracker app and wearable device. The app is free to download, but to get the most out of the device, you'll need a membership. The Oura ring starts at $299, with the most recent model (Oura Ring 4) costing $349. Membership costs $5.99 per month or $69.99 per year.
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Sleep tracking with Apple Watch vs Fitbit
Sleep tracking is an important feature for many smartwatch users. The Apple Watch and Fitbit are two of the most popular smartwatches on the market, and both offer sleep tracking capabilities. However, there are some key differences between the two devices in terms of sleep tracking.
Apple Watch:
The Apple Watch offers basic sleep tracking features, including the ability to set sleep schedules and alarms, as well as view sleep trends over the past 14 days. Users can also track their breathing rate during sleep, which can provide insights into overall health. With the release of watchOS 9, the Apple Watch gained the ability to track sleep stages and cycles, providing a more comprehensive view of sleep patterns. However, some users have reported that the Apple Watch does not always accurately capture sleep data, especially for naps during the day. Additionally, the Apple Watch must be charged to at least 30% before bed and worn for at least one hour during sleep to track sleep effectively.
Fitbit:
Fitbit has been a popular choice for sleep tracking for many years. Fitbit devices offer comprehensive sleep tracking features, including the ability to track sleep stages, heart rate, and temperature. The Fitbit app also provides a sleep score out of 100 to grade sleep quality and recovery. Fitbit devices are known for their accuracy in tracking sleep data and their ability to detect naps during the day. They offer a reasonably priced alternative to smartwatches, with similar core features to the Apple Watch, such as step tracking, heart rate monitoring, and calorie counting. The Fitbit is also compatible with any type of phone, making it a versatile option.
In terms of sleep tracking, both the Apple Watch and Fitbit have their strengths and weaknesses. The Apple Watch offers seamless integration with the Apple ecosystem, while the Fitbit provides a more affordable, compatible option for users with any type of phone. While the Apple Watch has improved its sleep tracking capabilities with watchOS 9, some users still prefer the Fitbit for its established sleep tracking features and accuracy. Ultimately, the choice between the two devices depends on individual preferences, budget, and phone compatibility.
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Sleep tracking with Apple Watch vs Oura Ring
Sleep tracking is available on the Apple Watch, which can be enabled through the Sleep app. The watch can be worn to bed to track sleep and add sleep data to the Health app on the iPhone. The Sleep app allows users to create sleep schedules and set sleep goals, as well as view sleep trends over the past 14 days. The Apple Watch can also track breathing rate during sleep, and detect sleep stages, including REM, Core, and Deep sleep.
The Oura Ring is a passive sleep tracker that monitors sleep in the background. It does not have a screen or buttons, and data can be viewed by syncing to a phone app. The Oura Ring offers a Sleep Score, which provides a quick read on the quality of sleep and recovery. It also provides insights into readiness and health, tracking sleep duration and breaking down sleep into stages. The Oura Ring has a longer battery life than the Apple Watch, lasting up to 8 days, compared to the Apple Watch's average of 26 hours.
Both devices offer body temperature tracking and female health tracking, including period tracking and prediction. The Apple Watch, however, provides more serious health features, including ECG, sleep apnea detection, and fall detection. It also has more fitness features, such as stroke and length detection for swimming, and is better at activity tracking.
In terms of sleep tracking accuracy, the Apple Watch and Oura Ring provide similar insights, but the data and details differ. The Apple Watch has been found to underestimate deep sleep phases, while the Oura Ring provided a closer estimate to a Dreem headband. Overall, the Apple Watch has been found to perform slightly better at sleep tracking, but both devices are decently good.
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Frequently asked questions
The Apple Watch does have a sleep tracker. With the Sleep app on Apple Watch, you can create sleep schedules to help you meet your sleep goals.
To track your sleep, you must wear your Apple Watch to bed. When Sleep Tracking is on, your Apple Watch tracks your sleep and adds sleep data to the Health app on your iPhone.
The accuracy of the sleep tracking on the Apple Watch is disputed. Some users claim that the results are horrible, while others claim that it is more accurate than most ordinary sleep-tracking devices.
To view your sleep data, open the Sleep app on your Apple Watch. You can also open the Health app on your iPhone and tap Browse at the bottom of the screen, then tap Sleep.
Yes, you can set sleep goals on the Apple Watch. You can set the number of hours you would like to sleep and create a customized sleep schedule.
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