Oura Ring review for 2025

Oura Ring implements wearable health technology that should analyze different body metrics and potentially give you insights about your sleep and overall health. Since 2015, it’s pretty popular among fitness enthusiasts and enjoys a pretty decent reputation. So, the Oura sleep tracking ring might be best for those who might want to improve their health and wellness.

With this in mind, I worked together with the Cybernews research team as an expert to review this wearable tracking device. In this in-depth Oura Ring review, I'll walk you through how well this device performs, based on our evaluation of users’ experiences, expert reviews, and scientific research. So, stay with me to see whether Oura Ring is worth it.

Rating:	4.8
App integration:	Yes
Main features:	Sleep tracking, heart rate monitoring, activity tracking, readiness score, stress management tools

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Pros and cons of Oura Ring

What is the Oura Ring?

The Oura smart ring utilizes wellness technology to potentially analyze various health metrics. It comes with a sleek and discreet design, which, unlike bulky wristwatches, you can wear on your finger.

Due to this, it’s more comfortable for daily use, and you can even pick from a few different colors (silver, black, stealth, brushed titanium, gold, and rose gold). These colors are available in two Gen 3 styles: Heritage (flat-top design) and Horizon (rounded design).

Oura Ring features should tackle all of the essential health factors. Therefore, its key features are comprehensive sleep tracking, personalized readiness score, and activity monitoring.

More precisely, the Oura Ring sleep tracker tends to monitor different sleep stages, including deep, light, or REM, sleep duration, and sleep efficiency. It should also track how often you wake up during the night and how long it takes you to fall asleep.

There’s also activity monitoring that should track the number of steps, calories burned, and how long you have been active during the day. Additionally, Oura Ring might send you a reminder to move if you haven’t been active for a while.

Ultimately, you get a personalized readiness score, which is calculated using a combination of metrics like sleep quality, recent activity, heart rate variability, resting heart rate, and body temperature. This feature potentially assesses your overall health and recovery status which might help you understand if you should push yourself or relax.

What likely sets the Oura Ring apart is its focus on personalized insights and recovery. Also, it has a better and more discreet design than any other health-tracking device that we’ve seen so far.

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Who should use the Oura Ring?

Many users who have already tried and tested Oura Ring claim that it is the best wearable for health tracking. However, this doesn’t apply to each user. Therefore, defining the ideal smart ring users can be a bit tough.

Regardless, Oura Ring’s features and functionalities may be suitable for health enthusiasts, as it tracks different activities during the day, such as calories, steps, and how long you have been active.

Also, it may benefit people with sleep issues, as the Oura Ring for sleep monitors various aspects, from the length of sleep to its quality to how long you’ve spent getting asleep. Aside from this, anyone who is looking for non-intrusive health monitoring may find this device useful.

Thanks to the tracking of around 20 biometrics, according to their official website, Oura Ring should give you insights about your heart rate, blood oxygen, breathing regularity, heart rate variability, temperature, activity, and sleep, which can help you assess your overall health and well-being.

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Oura Ring: design and comfort

When it comes to the physical aspects of Oura Ring, you should get wearable comfort. Starting off with the basics, the Gen 4 Oura Ring is fully made of titanium. On the other hand, the Gen 3 version features a titanium exterior with an epoxy interior. Both versions are built to last. Also, they are both lighter-than-average rings with a non-allergenic and water-resistant design.

On top of this, while there aren’t many sleek health trackers, Oura Ring might be one of them. It has an incredibly lightweight design that ranges from 3.3g to 5.2g. Basically, the ring tracker aesthetics make it feel and look like your regular piece of jewelry.

Thanks to the wide range of colors, expanded sizing range of the Gen 4 Oura ring (4-15), and the recessed interior sensors at 0.3mm, you should be able to wear it on a daily basis without even noticing that the ring is on your hand.

Users even claim to be able to sleep with it, which isn’t the case with some health-tracking devices, such as smartwatches, which are bulkier than the Oura Ring.

What is the difference between Oura's 3rd and 4th generations?

As of 2025, only the 3rd and 4th generation models of the Oura Ring are sold on the market. Earlier versions are no longer available for purchase, including their chargers. As our Oura Ring 4 vs Oura Ring 3 comparison revealed, while both Oura Gen 3 and Oura Gen 4 may offer you advanced health tracking with sleek, comfortable designs, there are some notable differences you should be aware of.

Check the chart below to see how they compare across key features.

	Gen 3	Gen 4
Sensor system	Red LEDs measure blood oxygen, green LEDs monitor heart rate 24/7, PPG sensors track resting heart rate, heart rate variability, and respiration, NTC sensors monitor skin temperature trends, and an accelerometer tracks movement and activity	Red and infrared LEDs track blood oxygen, green and infrared LEDs monitor heart rate, heart rate variability, and respiration, a digital sensor tracks skin temperature variations, and an accelerometer tracks movement and activity
Design	Made of a titanium exterior with an epoxy interior	Entirely made of titanium, making it lighter and more durable
Size range	Comes in sizes 6-13	Extended to size 4-15 to accommodate more users
Automatic activity detection	Limited to detecting basic activities such as running, walking, cycling without heart rate metrics	Added heart rate data into detectable activity in addition to over 40 other activities like rowing, yardwork
Battery life	Up to 7 days of battery life	Up to 8 days of battery life

In my opinion, buying the Gen 4 Oura Ring just for the sake of having the latest model might not be essential for everyone. However, if your preferred ring size is not within 6-13 of the Gen 3 model, Gen 4 would be a meaningful improvement. And you can also enjoy the improved sensors, lighter and sleeker feel, and automatic heart rate metrics tracking of the Gen 4 Oura Ring.

Oura Ring: features and functionality

Now that you’re more familiar with how Oura Ring works let’s dive deeper into its standout features and see what you may benefit from!

Sleep tracking

The Oura Ring provides you with a sleep score by considering a few crucial aspects. More precisely, it most likely focuses on your total sleep time, including naps, your sleep efficiency or how long you’ve been sleeping versus how long you’ve been awake, and also your sleep stages. This refers to light, deep, or REM sleep.

Another aspect that should be calculated in the Oura Ring sleep data is your sleep latency. In other words, this represents the time you need to fall asleep when you go to bed and whether and how often you wake up at night.

Aside from the sleep score, Oura Ring states that it can also determine your chronotype, meaning identify whether you’re a morning person or a night owl, along with your optimal sleep schedule after 90 days of using the device.

Activity tracking

Another prominent feature is the Oura Ring activity tracking, which tracks how active you’ve been during the previous day.

In other words, this monitoring feature should represent how many steps you’ve made, whether you’ve been sitting for too long, how long you participated in medium-to-high-intensity training, and the number of burnt calories, which is a good indication of whether you’re meeting your fitness goals.

On top of this, you can also find the Oura Ring heart rate tracking. As one of the first trackers to measure the HRV, Oura Ring shows the regularity or irregularity between pulses, coming in handy during exercising.

If you have a high HRV, it might mean that you’re in good shape and relaxed, while a low HRV alerts you that you may be going through some emotional or physical stress.

Readiness score and stress management tools

Oura Ring’s readiness score is a combination of different recent activities, such as sleep data, activity tracking, heart rate variability, and body temperature. Its goal is to potentially show you whether you’re prepared and, if so, how well prepared you are to take on the new day.

This score also might tell you if you should relax during the day or challenge yourself to be more active. Basically, it should represent an average of your overall health and well-being.

Aside from this, Oura Ring should provide you with a resilience level score. This feature most likely measures how much stress you’re dealing with and whether you’re bouncing back from it.

On top of this, the stress monitoring feature might include tracking daily movement and activities, as well as manually added tags that should give you better insights into your daily condition.

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How accurate is Oura Ring?

In order to evaluate the Oura Ring’s accuracy, I explored numerous user experiences, reviews, and studies on the device’s performance. Starting from what’s available on the website, you might expect it to measure your resting heart rate with 99.6% reliability, monitor heart rate variability with 98% reliability, and track temperature changes as small as 0.13 °C/ 0.234 °F.

In fact, according to a study they conducted on 49 healthy subjects, Oura Ring has shown to be a reliable tool for measuring average nighttime resting heart rate and variability, as well as highly accurate in assessing body signals and long-term health behavior.

However, a Cosmopolitan review states that the fitness tracker performance might not be the best, as it wasn’t able to detect what activity was done or to track calories burned from cardio and non-cardio activities.

A particular user in a blog post shared that the Oura Ring performs better in terms of sleep tracking accuracy compared to Garmin. The user came to this conclusion after testing both devices, stating that the results from the Oura Ring were more accurate than those of the Garmin watch.

Ultimately, the results of Oura Ring vs competitors are also more reliable according to users. In fact, a user on Reddit claims that they got results that Apple Watch can’t detect and that even though they tried WHOOP, it showed as a lousy option to them.

Based on all of the reviews, it seems like Oura Ring offers accurate and reliable results for most users.

Oura Ring: customer reviews and feedback

While I scratched the surface of some of the smart ring testimonials, let’s delve into more detail. Some Oura Ring user reviews on Reddit reveal that they like how the device helps them take corrective action and understand what they need to improve.

There are also reviews claiming that the HRV monitoring helped them achieve more good than bad days. There is also positive Oura Ring feedback on sleep tracking, with users claiming the ring provides them with accurate results.

Additionally, one of the best things, according to those who’ve tried this smart ring, is the lightweight design, which is much more comfortable than other wearables.

However, there are also reviews as the following:

“It has a lot of flaws and doesn't do anything another device won't do just as well (or likely better in anything other than sleep tracking). It frequently mis-guesses when I go to bed or wake up, making me have to tweak it. My heart rate graph during the day has multiple hours missing all the time. It can't really track workouts in any meaningful or useful way, and you'd be far better served with a watch for that...”

But even though there are some critiques, the pros seem to outweigh the cons of Oura Ring, making it a potentially decent health-tracking device.

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Other health tech devices to increase your well-being:

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Oura Ring review: final thought

Based on my thorough review and all the user testimonials, it seems like Oura Ring is a potentially worth-it smart ring. This sleep- and health-tracking ring appears to provide accurate and reliable results while also coming with a comfortable design.

From what I observed, it balances wearability and functionality, especially for those who want discreet and less-bulky wearable health tech devices to track their health. You should find the sleep analysis and readiness scoring feature particularly helpful for forming healthier habits. And while it is not quite perfect yet, each new generation brings it closer to being one of the most valuable health wearables available.

Disclaimer: While the Oura Ring can provide helpful insights by measuring various health-related metrics, it is not intended to diagnose, treat, or replace professional medical advice. Always consult a medical professional for concerns regarding your health.

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