
The Samsung Gear S3 watch, in conjunction with the Samsung Health app, can help you track your sleep. The watch uses an accelerometer to detect movement and sensors to collect user data, which is then used to monitor your sleep quality and patterns. The sleep tracking feature on the Samsung Gear S3 can be set up by opening the Samsung Health app, tapping on 'Manage Items', scrolling down to find 'Sleep', and switching it on. Once enabled, you can wear your watch to bed, and it will automatically start tracking your sleep once you fall asleep. The next morning, you can view your sleep data, including sleep time, sleep stages, blood oxygen levels, and snoring detection, on the watch or in the Samsung Health app on your phone.
| Characteristics | Values |
|---|---|
| Sleep tracking | Requires setting up the REM sleep cycle monitor |
| Requires setting to silent mode | |
| Requires registering the device | |
| Requires setting goals | |
| Requires wearing the watch to bed | |
| Requires enabling certain features in the Samsung Health app | |
| Sleep data | Sleep score |
| Sleep time | |
| Sleep stage | |
| Blood oxygen during sleep | |
| Snore detection | |
| Sleep consistency | |
| Sleep coaching | Requires wearing the watch for at least 7 days and nights |
| Can only be adjusted from the phone |
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What You'll Learn

Setting up sleep tracking on the Samsung Gear S3
To set up sleep tracking on your Samsung Gear S3, follow these steps:
- Open the Samsung Health app on your phone.
- Choose the "More" button and tap on "Manage Items".
- Scroll down to find "Sleep" and turn it on.
- Register your device by selecting the "Accessories" menu and choosing the "Sleep" option.
- Tap on "Device" and scroll down to find and select "Samsung Gear S3".
- Tap "Register".
- Set your goals by going back to "Manage Items", selecting "Goals", and then scrolling down to choose the "Feel More Rested" option.
Once you have completed the setup, simply wear your Samsung Gear S3 to bed, and it will automatically start tracking your sleep once you fall asleep. The tracker will record when you fell asleep and woke up, along with your sleep rating as a percentage, and light and deep sleep graphs. For more detailed information about your sleep quality, open the Samsung Health app, where you can view data on light, deep, and active sleep.
Additionally, you can record and monitor your REM sleep cycle by adjusting the heart rate settings in the Samsung Health app. To do this, open the app, tap on "Heart Rate", select the three-dot menu in the top right corner, tap the gear icon, and then find and select the "Always" option.
It is important to note that while the Samsung Gear S3 can provide valuable insights into your sleep patterns, no fitness tracker is entirely accurate, and sleep data should not be used for self-diagnosis. If you have concerns about your sleep or notice consistent patterns of interrupted sleep, it is recommended to consult a healthcare professional.
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Viewing sleep data on the Samsung Health app
To view your sleep data on the Samsung Health app, you must first ensure that your Samsung Gear S3 watch is connected to the app. You can do this by opening the Samsung Health app on your phone and choosing the "More" button, then tapping on "Manage Items" and scrolling down to find "Sleep". After switching it on, you can register your device by selecting "Accessories", then "Sleep", "Device", and finally, "Samsung Gear S3".
Once your device is connected, you can view your sleep data by opening the Samsung Health app on your phone and tapping the "Sleep" tile. Here, you will be able to see your sleep data, including your sleep score, sleep time, sleep stages, blood oxygen levels, and snoring data. You can also access this information on your watch by swiping left on the watch home screen until you see the "Sleep" tile and tapping it.
Your sleep score is a number between 1 and 100 that indicates the quality of your sleep, with a higher score representing better sleep. This score takes into account factors such as total sleep time, sleep cycles, and your sleep in relation to others in your age and gender group. The Samsung Health app also provides daily goals and coaching programs based on your sleep data to help you form better sleep habits.
In addition to your sleep score, you can view detailed information about your sleep stages, including the amount of time spent in light, deep, and REM sleep. You can also monitor your blood oxygen levels during sleep, which can provide insights into your overall health and fitness. However, it is important to note that this data should not be used for self-diagnosis and that you should consult a medical professional if you have any concerns.
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Understanding sleep scores
The Samsung Health app provides a sleep score, which is a measure of how well you slept. This score is calculated based on several factors, with Samsung giving every applicable night's sleep a score between 1 and 100. A higher score indicates better sleep quality. The five factors that influence the sleep score are:
Total Sleep Time
The total amount of time spent sleeping. Sleeping too much or too little will negatively affect your sleep score. Samsung believes that adults should get between 6 and 9 hours of sleep per night.
Sleep Cycles
The body doesn't just spend all sleep hours in a single state during slumber. A sleep cycle usually lasts around 90 minutes and is one complete progression of the four sleep stages: non-REM and REM sleep. According to Samsung, adults should aim for between 3 to 7 cycles per night to achieve a high sleep score.
Movements and Awakenings
The Galaxy Watch records the percentage of sleep that is interrupted. A figure between 10% and 40% is considered ideal.
Physical Recovery
This factor is directly related to deep sleep, which is often considered the physically restorative phase of sleep. It is presented as a percentage, with a figure of 40% or above considered excellent.
Mental Recovery
Mental recovery is associated with REM sleep. Achieving a figure of 60% or above in this category will contribute to a higher sleep score.
In addition to the sleep score, the Samsung Health app also provides other metrics and insights related to your sleep, such as sleep time, sleep stages, blood oxygen levels, snore detection, and sleep consistency.
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Tracking REM sleep
The Samsung Gear S3 watch, along with the Samsung Health app, can help you track your sleep patterns and quality. The watch automatically tracks your sleep once you fall asleep. Three minutes after waking up, the tracker will display the time you fell asleep and woke up, a sleep rating in percentage form, and light and deep sleep graphs.
To track your REM sleep cycle, you need to tweak the heart rate settings. Open the Samsung Health app and look for the Heart Rate option. Tap on it, then on the three-dot menu on the right, followed by the Gear icon. Next, find Settings, scroll, and select the Always option.
Additionally, you can also set your Gear S3 to silent mode to avoid disturbances. This can be done by opening the Quick Settings panel and tapping on the Do Not Disturb icon to turn it on. You can also press the power key, tap Settings, and then the Advanced menu, followed by the Do Not Disturb mode to turn it on.
The Samsung Health app will also help you identify if you have been experiencing interrupted sleep, which might require professional help. If the tracker is on silent or sleep mode and no body movement is detected, it will be recorded as sleep. On the other hand, if body movements are detected, it will be recorded as restless sleep. These movements may be due to tossing and turning, sleeping problems, or external factors like noise or light.
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Using sleep coaching
The Samsung Health app provides sleep coaching options to help you improve your sleep quality. To use the sleep coaching feature, you will need to wear your watch for at least 7 days and nights. The sleep coaching settings can only be adjusted from your phone.
To set up the sleep coaching feature, open the Samsung Health app on your phone and tap the Sleep tile. Tap "Get started with sleep coaching" and answer some questions about your sleep. Based on your answers and historical sleep data, you will be assigned a "sleep animal" or "sleep symbol" that represents your sleeping style. For example, if you're an "Unconcerned Lion", your program will focus on "building a regular sleep pattern".
Once you've been assigned your sleeping style, the app will create a four-to-five-week coaching program for you. This includes missions, checklists, sleep-related articles, meditation guidance, and sleep reports. Each week will have a different theme with suggestions to improve your sleep. After completing the program, your sleep schedule should be back to normal. If sleep coaching isn't for you, it's okay to stop, and you can always restart when you're ready.
The Samsung Health app also provides daily goals and coaching programs based on your sleep data to help you form better sleep habits. It measures the duration of each sleep phase and your movements during sleep, allowing you to compare your sleep score with other users in the same age and gender groups.
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Frequently asked questions
To set up sleep tracking on your Samsung Gear S3, you need to open the Samsung Health app on your phone and enable a few features. Go to Settings and turn on Blood oxygen during sleep. You will also need to register your device by selecting the Accessories menu, finding the Sleep option, and tapping on your device.
The Samsung Gear S3 uses a combination of sensors to detect when you fall asleep. It uses an accelerometer to detect movement and matches this with user data acquired from its sensor array. It also samples your body temperature throughout the night.
To view your sleep data, swipe left on the watch home screen until you see the Sleep tile. Tap on this to see your sleep score, sleep time, sleep stage, blood oxygen levels, and more. You can also view your sleep data in the Samsung Health app on your phone.





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