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A wearable you will actually want to wear.

That’s exactly what Oura set out to create, and its new ceramic design might just convince you that a $499 fitness tracker is actually worth it. I wasn’t planning to wear this ring for more than a month, but now that I’ve seen the data, I never want to take it off.

The Oura Ring 4 Ceramic was released in October, introducing a lightweight, skin-friendly design in four new trendy shades: Midnight, Cloud, Tide and Petal. It’s stylish enough to pass for an elegant piece of jewelry — yes, more than one person has asked where I got mine — yet durable enough to wear in the sauna (up to 125 degrees) or underwater at depths of up to 100 meters.

The Finnish design shines through, sleek and simple. No screen or buzzing notifications, it holds 8 days of charge, so you rarely have to take it off. This quieter approach sets the Oura Ring apart from competitors, blending in with daily life rather than distracting from it. Yet, beneath that simplicity is serious data. Users have even reported that their Oura Rings may have saved their lives.

As far as tracking goes, the Oura Ring 4 Ceramic still delivers the same powerful, in-depth health metrics that the previous titanium models boast; measuring everything from stress levels and sleep patterns to your daily activity as well as recovery, cardiovascular health and cycle tracking. All the data that your typical health-nut cares about, and then some that you probably have never heard of. And due to its fleet of health tracking devices, it should qualify for reimbursement with a Flexible Spending Account (FSA).

After just a month of testing it out, my Oura Ring revealed a few gaps in my health that I doubt I would have ever noticed without it.

The Oura Ring 4 Ceramic is essentially a cosmetic makeover of the latest titanium models, offering the same advanced technology in an elevated, hypoallergenic design. Crafted from high-performance zirconia ceramic, the material is known for its exceptional durability and lightweight comfort. The ceramic colors are also infused throughout the material, which can help prevent fading and scratching over time.

Both the ceramic and titanium Oura Ring 4 models collect data with recessed, interior sensors integrated around your index finger. These smart sensors automatically adapt to the unique structure and skin tone of each user’s finger to ensure highly accurate readings.

A 2020 study revealed that the Oura Ring is about 99% accurate when testing Heart Rate (HR) and Heart Rate Variability (HRV) when compared to ECGs. Another trial from a top US hospital compared the Oura Ring to the Apple Watch and the Fitbit, finding that the Oura Ring had the highest sensitivity for deep sleep detection at 79.5% — compared to 61.7% for the Fitbit and 50.5% for the Apple Watch.

The Oura ring can be worn on any finger of either hand. Oura recommends choosing the index, middle or ring fingers for the best signal quality. These fingers have larger blood vessels, which could help optimize photoplethysmogram (PPG) pulse monitoring. For the best fit and most accurate readings, the ring should be aligned so the sensors are against the palm side of the finger.

As a wellness writer, I’m no stranger to wearables; the increasingly popular smart devices that we strap on to our bodies to translate our health data. Having tested everything from the Apple Watch Series 10 to the Garmin Forerunner and Meta AI Smart Glasses, the latest Oura Ring felt like the obvious next step.

Through testing, I’ve found that many wearables excel at tracking the here and now (metrics like step count, heart rate or sleep duration, but fall short in finding long-term patterns — such as signs of underlying illness, chronic stress, fatigue or even hormonal imbalances.

I wanted to see if the Oura Ring could truly bridge the gap, working beyond raw data to provide real guidance that might help me understand how my daily choices actually shape my long-term health. Like many modern people, I struggle with bouts of stress, tiredness and the occasional cold — but what if I actually had the information I needed to reduce their impact or potentially, avoid them entirely?

The Oura Ring Ceramic is available in sizes 4 through 15, but the brand highly recommends ordering the sizing kit prior to picking a ring size. It’s free on the Oura website when you purchase a ring, or $10 on Amazon, and ships out in a few days.

Trying them on is simple; just place the desired plastic sizer on your chosen finger for at least 24 hours. You’ll want the ring to be snug and secure, yet comfortable enough to do all your daily tasks. I ended up sizing up with the Oura Ring, so I’d say it’s a step you probably shouldn’t skip.

The Oura Ring 4 Ceramic arrives in a compact white box with the ring itself, a guide to getting started, a circular charging dock and a USB cable. The Quick Start Guide has simple instructions for getting set up.

First, you’ll need to download the Oura Ring app. The first month is free to new members, and then it’s $5.99/month or $69.99/year prepaid. Next, you’ll want to place the Oura Ring on the charger while it’s plugged in, enable Bluetooth on your phone and pair your ring. The Oura app will prompt you to enter some basic profile details, including your sex, weight, age and height, which are used to help calibrate health readings. Simple enough.

Once you have all this done, it’s time to wear it and wait for the readings to start rolling in. Some should be ready overnight, while more in-depth measurements take weeks — and even months to calibrate.

Forget scrolling on Instagram or TikTok, the real initiation into the Oura Ring cult is complete when you begin waking up and impulsively checking your sleep score before anything else.

While some Oura metrics take time to calibrate, you’ll get your first Sleep Score after your first night. This 0 to 100 score is a comprehensive look at your rest, calculated from factors like total sleep, efficiency, REM, deep sleep and latency (aka how long it takes you to fall asleep). An 85 or higher is considered optimal. Now that I’ve moved past the sleep training trenches with my toddler, I’ve made it a personal challenge to stay in that above-80 range. It’s kind of addicting.

In a sense, these Oura report cards almost turn my sleep routine into a competition with myself. I’ve used Oura’s personalized wind-down reminders to aim for a 10 p.m. bedtime. I’ve switched to morning workouts, so I’m not all charged up at night. I’ve even thrown in a sunrise alarm clock. And, my new habits seem to be paying off: my sleep scores are now consistently hitting the 80s. Voilà.

Interestingly, the data reveals a direct correlation between my lifestyle choices and the quality of my rest. Whenever my stress levels spike during the day, my sleep score reliably takes a hit. Exerting myself a little too much — or even having a single glass of wine before bed — is also reflected in the data. The numbers simply don’t lie.

Now, for another wellness buzzword of 2025: recovery. In the Oura ecosystem, this is captured by your Readiness Score. It’s more than just how you feel after a workout; it is a holistic measurement that analyzes key biometrics like Heart Rate Variability (HRV), Resting Heart Rate (RHR), body temperature and sleep quality. Like the Sleep Score, Readiness is rated from 0 to 100.

A high score indicates you are primed to take on the day, while a lower score is basically a gentle nudge to take it easy. One of my favorite features of this measurement is that Oura immediately adjusts your daily Activity Goal (aka step count) based on your recovery. In other words, I never feel shamed for missing my 12,000-step-a-day target on days when my body actually needs to rest.

Another major realization — one that probably shouldn’t have taken me a quarter-century to uncover — is that you really can push yourself too hard. On days when I’ve overextended myself to crush an activity goal at the expense of sleep, I simply don’t recover. And this applies to mental toll, too. On tough work days, my Daytime Stress simply flies off the charts. During one critical period at work, my Heart-Stress Response was enough to fall in the red zone, indicating that my entire body was under strain.

The result of pushing myself too hard has remained the same: the day after always feels like a bit of a Hangover. I wake up flat, drained and the idea of working out feels physically impossible. Not to mention, I’m that much more likely to reach for some extra snacks to try and feel better. It took me a $499 Oura Ring to realize that balance is truly essential, and burnout is real.

If there’s one thing that people with wearable devices probably have in common, it’s that we’re all a little obsessed with our step counts. Oura allows you to set your own goal, and Step Progress is displayed front and center on your home page — so yes, you can still mull over it if you want to.

But beyond basic movement and calorie burn, there is a lot more to uncover regarding your Activity Score. Oura tracks your Training Volume, the total amount of medium and high-intensity activity you’ve clocked over the past week, as well as your Training Frequency, which monitors how often you’re exercising.

Oura’s always tracking your movement. I get several “smart detection” pop-ups to confirm activities every day. Between walking, jogging and plenty of housework, I stay pretty active. However, Oura picked up on a blind spot: I don’t do much to diversify my training. That’s when I began to realize that having the same routine is easy, but it isn’t always the most effective way to improve cardiovascular and metabolic health.

While Oura doesn’t catch every single activity (I’ve had to manually input things like HITT and tennis), it does track your heart rate zone and understands the metabolic benefit of each workout. Per my Oura Insights, spending time in all six heart rate zones can have a positive impact on your metabolic health.

Since getting my ring, I’ve been focused on spending more time in Zones 5 and 6, and I’m already seeing the pay-off. One of my favorite Oura features is Cardiovascular Age, which estimates the health of your heart. I was trending about 4 years below my actual age when I got my first ring, but I’ve managed to shave off another year and a half. It’s a massive motivator and pretty fun to compare stats with friends.

Don’t you wish you had a little crystal ball that could tell you when you’re going to get sick? Well, the Oura Ring isn’t exactly that, but Symptom Radar comes pretty close. In my opinion, nothing replaces a human doctor (at least not yet), but this feels like a massive step in bridging the gap to proactive healthcare.

By tracking biometrics like temperature, respiratory rate and heart rate, the Oura Ring can catch early signs of physical strain or illness before you even feel them. If something is detected, your entire homepage is cast over with dark clouds and a message that displays either Minor Signs or Major Signs. It’s basically impossible to ignore.

This feature has alerted me twice now — first of something that turned into a persistent cough and then with a bout of the dreaded NYC Super Flu. The ring flagged Major Signs early, including a 3.5-degree temperature spike that matched my thermometer perfectly. That warning was enough to convince me to turn on Rest Mode to pause my goals and stay home from work, which likely saved my coworkers from catching it, too.

In this sense, I see the Oura Ring as more than just a health tracker; it has the potential to be used as a practical tool for helping reduce the spread of viral infections as well.

Another lesson that the Oura Ring can teach you that some high school health classes totally miss: women’s bodies aren’t static.

We change constantly throughout the month across four cycle phases: Menstrual, Follicular, Ovulatory, and Luteal. It’s not just mood swings; these are identifiable biological shifts. The Oura Ring picks up on each phase and provides information on how your body is impacted — helping you understand everything from your menstrual cravings to plummeting energy levels during your luteal phase.

Oura uses biometric data, like skin temperature, to track hormonal shifts and provide an accurate window into where you are in your cycle. This is helpful for women who simply want an estimate of when to expect their period. But, the Fertile Window feature, which offers ovulation detection, could also offer deeper insights for those either looking to get pregnant or avoid pregnancy.

If you experience spotting or have short cycles, Oura may not automatically trigger a new cycle, as I discovered. If you’ve logged your period, but your cycle hasn’t refreshed to Day 1, it is likely because Oura requires at least 12 days between period logs to recognize a new cycle.

Alongside the launch of the Oura Ring 4 Ceramic, Oura introduced a new Multi-Ring Support feature. This allows users to pair multiple Oura Rings to a single account, which is perfect for users who’d like to change up their look with a different ring.

Adding a new ring is simple: open the Settings tab, select “My Oura Ring”, then choose “Set up a new ring” to pair another model. No data is lost in the process, and from there on out — swapping between the rings just takes a few seconds.

The ceramic model offers the same capabilities as the titanium Oura Ring 4, so the real difference comes down to material. After a month with the ceramic ring, I switched to the titanium version to see if I could detect any major difference.

Off the bat, I found that the titanium ring is slightly thinner (2.88 mm) and lighter (3.3–5.2 g), which initially made it more appealing to me. It’s also available in those classic metal finishes that may feel a bit more suitable for everyday wear.

That said, the ceramic material still felt noticeably better on my skin. While I’m not allergic to titanium, I do have sensitive skin, and after just a week with the titanium version, I noticed increased dryness and mild peeling where the ring sat — nothing severe, but enough to tell that my skin preferred the ceramic.

In terms of durability, the ceramic edition is the clear winner. It has held up beautifully over the past month; meanwhile, after just a week (including some weightlifting and one morning of sledding) with my titanium ring, I was already seeing marks and scratches.

I’ve seen TikTokers talking about Oura Ring covers, which is an option if you’re unwilling to fork out the extra cost for the Ceramic edition.

For anyone with sensitive skin or a titanium allergy, I’d argue the ceramic option is the best Oura Ring for you, even with the $150 upcharge. If titanium doesn’t bother you (and it’s generally well-tolerated, even by those sensitive to jewelry), the standard version offers better value.

Either way, in my opinion, the Oura Ring 4 as a whole is a sound investment for anyone who cares about their health. Oura Rings detect daily shifts and long-term trends that meaningfully affect your life. In my experience, it uncovered hidden cardiovascular insights, flagged illnesses before I felt symptoms and exposed everyday stressors I have overlooked.

I see the Oura Ring as more than a fitness tracker; it feels like an extension of my healthcare. And it’s not just delivering me the data; it gamifies health by turning insights into action, whether that means reminding me to prioritize sleep or pause to breathe during a stressful day.

In just one month, I’ve seen how small tweaks lead to major changes: my cardiovascular age has almost dropped by two years. My sleep score has surged. And, instead of chasing the latest wellness fads and trends I see on social media, I am finally focusing on my own data and what my body truly needs.

To me, the Oura Ring feels like the perfect marriage of elegant design and intelligent data. If that resonates with you — or you just despise the look of a smartwatch — welcome to the Oura inner circle.

After testing the Oura Ring 4 Ceramic for a month, I evaluated it across several key areas: comfort and style, health data and trends, Oura health insights and the overall user experience.

This article was written by Miska Salemann, New York Post Commerce Writer/Reporter. As a health-forward member of Gen Z, Miska seeks out experts to weigh in on the benefits, safety and designs of both trending and tried-and-true fitness equipment, workout clothing, dietary supplements and more. Taking matters into her own hands, Miska intrepidly tests wellness products, ranging from Bryan Johnson’s Blueprint Longevity Mix to the viral Oura Ring to Jennifer Aniston’s favorite workout platform – often with her adorable toddler by her side. Before joining The Post, Miska covered lifestyle and consumer topics for the U.S. Sun and The Cannon Beach Gazette.