Getting a good night’s sleep is essential for maintaining overall health. Fortunately, with advancements in wearable technology, sleep tracking has become easier than ever. The best smartwatches for sleep tracking in 2025 offer in-depth insights into sleep quality, while smart rings with SpO2 sensors provide a more discreet and comfortable way to monitor sleep. Additionally, wearable devices that track heart rate overnight offer valuable data for optimizing rest. In this article, we’ll explore the top smartwatches and smart rings for sleep tracking and discuss the benefits of heart rate and SpO2 monitoring during sleep.
Top Smartwatches for Sleep Tracking
Smartwatches have become one of the most popular tools for tracking sleep patterns. In 2025, these devices have evolved to offer more accurate sleep tracking features, including detailed insights into sleep stages and overall sleep quality. Here are some of the best smartwatches for sleep tracking:
Fitbit Sense 2
Fitbit continues to be a leader in sleep tracking, and the Fitbit Sense 2 offers advanced sleep features. It provides in-depth analysis of your sleep stages including deep, light, and REM sleep. The watch also tracks heart rate, skin temperature, and oxygen levels, giving you a complete picture of your health during the night.
Apple Watch Series 8
The Apple Watch Series 8 has advanced sleep tracking capabilities. It tracks your sleep duration and quality while monitoring your heart rate. Additionally, it has a built-in SpO2 sensor that can track oxygen levels during the night, helping you monitor overall sleep health.
Garmin Venu 2
Garmin’s Venu 2 is known for its sleep tracking features, providing detailed insights into sleep stages. The watch also offers overnight heart rate monitoring and includes a Pulse Ox sensor for SpO2 tracking. It’s a great option for those who need both fitness tracking and sleep monitoring in one device.
Smart Rings for Sleep Tracking with SpO2 Sensor
Smart rings are an excellent alternative to bulky smartwatches. They are smaller, lighter, and more comfortable to wear overnight, while still providing reliable data for sleep tracking. Many of the top smart rings also come equipped with SpO2 sensors to measure blood oxygen levels during sleep. Here are some of the top smart rings for sleep tracking:
Oura Ring (Gen 3)
The Oura Ring is one of the best smart rings for sleep tracking. It’s compact, comfortable, and provides detailed insights into your sleep stages, including REM sleep. It also tracks heart rate, body temperature, and SpO2 levels. The Oura Ring’s Sleep Score gives you a quick snapshot of your sleep quality based on the data collected throughout the night.
Motiv Ring
The Motiv Ring is another excellent choice for sleep tracking. It monitors your heart rate and sleep patterns while being lightweight and comfortable to wear. Although it doesn’t have as many features as the Oura Ring, it still offers useful data on sleep duration and quality. The Motiv Ring is ideal for those who want a simpler yet effective sleep tracker.
Comfortable Sleep Trackers for Overnight Heart Rate Monitoring
Heart rate monitoring during sleep is crucial for understanding your overall health. Many wearable sleep trackers, including both smartwatches and rings, now offer overnight heart rate monitoring. Here are some of the top trackers for heart rate monitoring during sleep:
Whoop Strap 4.0
The Whoop Strap 4.0 is a fitness tracker that excels in heart rate monitoring. It tracks your sleep stages and heart rate throughout the night, giving you valuable insights into how your heart rate varies while you sleep. The Whoop Strap 4.0 also provides a recovery score to help you understand if you are getting enough rest for optimal performance.
Polar Ignite 2
The Polar Ignite 2 is a great option for those who want a comfortable sleep tracker with heart rate monitoring. It provides accurate sleep tracking and monitors heart rate during both the day and night. The Polar Ignite 2 also tracks your breathing patterns and SpO2 levels during sleep, offering a comprehensive view of your sleep health.
Withings Steel HR
Withings Steel HR is a hybrid smartwatch with heart rate monitoring features. It offers basic sleep tracking, including monitoring your heart rate during sleep, and provides insights into your sleep quality. The watch is comfortable and stylish, making it ideal for those who prefer a traditional watch design with modern health tracking features.
Benefits of Sleep Tracking and Monitoring
Tracking your sleep with a smartwatch or smart ring provides several health benefits:
Better Sleep Quality: By understanding your sleep patterns, you can make informed decisions to improve your sleep quality and overall health.
Heart Rate Insights: Monitoring your heart rate during sleep can help you understand how well your heart is recovering overnight and identify any potential issues.
SpO2 Monitoring: The inclusion of SpO2 sensors in smart rings and smartwatches allows for tracking blood oxygen levels, which is especially useful for those with sleep apnea or other respiratory conditions.
Personalized Recommendations: Many of these devices provide personalized recommendations based on your sleep data, helping you optimize your bedtime routine.
FAQs
How accurate are sleep trackers?
Sleep trackers are generally accurate, but they may not be 100% precise. They provide valuable insights into your sleep patterns, but should not be used as a substitute for medical advice.
Can I use a smart ring for sleep tracking without a smartwatch?
Yes, smart rings like the Oura Ring can track your sleep independently of a smartwatch. They provide detailed sleep data and can sync with apps on your phone for further analysis.
Are smart rings more comfortable than smartwatches?
Yes, smart rings are generally more comfortable for overnight wear due to their small and lightweight design. They don’t feel bulky like some smartwatches.
Do I need an SpO2 sensor for sleep tracking?
An SpO2 sensor is not essential for basic sleep tracking but is useful for monitoring oxygen levels while you sleep, which is beneficial for those with breathing issues like sleep apnea.
How does heart rate monitoring during sleep help with health?
Heart rate monitoring during sleep can provide insights into your cardiovascular health and recovery. It helps identify patterns and potential issues with your heart’s performance at rest.
How can I improve my sleep using a sleep tracker?
By reviewing your sleep data, you can identify patterns, such as the amount of deep or REM sleep, and make adjustments to your bedtime routine, environment, or habits to improve your sleep quality.
Can I use a sleep tracker for tracking naps?
Yes, many sleep trackers can monitor naps and provide insights into nap quality, duration, and recovery.
Conclusion
In 2025, sleep tracking has never been more advanced. Whether you prefer a smartwatch or a smart ring, there are numerous options for tracking your sleep, monitoring your heart rate, and measuring SpO2 levels. By using these wearable devices, you can gain valuable insights into your sleep patterns and overall health, helping you make informed decisions to improve your rest and recovery.
