Oura Ring 4 review: Super smart health tracking, now with a portable charging case

Over the past few months, it has been getting harder and harder to ignore just how much influence the Oura Ring 4 has over the market (and my Instagram feed!).

I’ve spent months swapping between the Ultrahuman Ring AIR, RingConn Gen 2 and the Amazfit Helio, yet I’ve still been unable to evade the Oura and the constant conversations around it.

Oura Ring 4, from £349

Growing tired of the inevitable “Oh, is that one of those Oura rings?” at social gatherings while I glumly explain the merits behind an Ultrahuman, I finally sought to get my hands on what seems to be one tech’s most coveted items.

Keep reading to see how I think Oura Ring 4 stacks up against its competitors and whether or not, this device and its new charging case will be taking pole position atop my smart ring selection.

Navigate this article

• Quick summary
• Full review
• Oura Ring 4 Charging Case
• Verdict
• FAQs

How I tested the Oura Ring 4

To put the Oura Ring 4 through its paces, it became my go-to source for tracking my sleep, movement and overall health for around a two-week period.

I wore the ring continuously throughout this time, only taking it off when it needed a battery top-up or during sessions at the gym.

During my testing, I looked at everything from how intuitive the app feels to the accuracy of the data, the features on offer, the build quality and, most importantly, how it actually stacks up against its rivals.

I then gave the ring a final score out of five to determine whether the Oura Ring 4 is actually worth your money and if it has earned a permanent spot on my finger.

Oura Ring 4: Quick summary

Oura Ring 4, from £349

Pros:

• Best looking ring on the market
• Plenty of colours on offer
• Best app interface
• Fantastic battery life
• Charging case is a welcome addition
• Automatic exercise recognition
• Accurate scores

Cons:

• Sizing kit felt smaller than the actual model
• Subscription model
• Quite thick

Rating: 4.7/5

I have tested a number of smart rings over the last year, and I can safely say the Oura Ring 4 has emerged as the definitive market leader.

I got my hands on one of the newer (albeit more expensive) ceramic models in “Midnight Blue”, and it certainly ticks all the boxes in the aesthetics department.

The redesigned app was a particular standout feature, clearly explaining exactly how my data correlated with all the scores, and offering time and data-sensitive insights into my health each time I opened it.

Paired with a seven-day average charge, a sleek new charging case, and AAD (Automatic Activity Detection) for over 40 exercises, the Oura Ring 4 offers a seamless experience that outpaces competitors with far less battery life.

There were some minor drawbacks: for example, the ring felt slightly looser than the sizing kit suggested, and the 3.51 mm thickness of the Ceramic edition was fairly noticeable on my middle finger.

Furthermore, the ongoing subscription cost (£5.99 pcm) is certainly a downside when compared to the Galaxy Ring and Ultrahuman‘s free services.

However, with all that said, I do feel like these are small trade-offs when you consider the level of insight and quality involved.

If you can stomach the monthly fee, the Oura Ring 4 reigns supreme in my eyes, and I undoubtedly consider myself a convert from here on out.

Read on for the full review below.

Oura Ring 4: full review

Oura Ring 4, from £349

Since starting my smart ring journey about a year ago, I’ve tested some of the biggest players in the market, but arguably the biggest has remained elusive until now.

Having heard so much about the Oura Ring from friends and social media alike, I was keen to see what all the fuss was about.

After figuring out my size with the provided kit, I received one of the newer ceramic models of the Oura Ring 4 in a show-stopping “Midnight Blue” finish.

I’m not entirely sure if it was just the ceramic texture of this new option, but I was instantly impressed by just how aesthetically pleasing the ring looked on my finger.

These ceramic models do come in a fair bit pricier at £499, but I can personally attest to just how premium they look and feel in person.

After a quick charge, I was prompted to begin setting up my ring.

This was extremely straightforward with the bluetooth connecting instantly, however you do have to head to your email to fill out some extra details for the subscription.

I opted for the monthly subscription at £5.99 a month, which unlike its competitors, you will need for full functionality.

All set up and ready to go, I wore the ring religiously for the next few days so Oura could gather as much data surrounding my sleep and activity.

Within 24 hours or so, Oura began to collate my data to give me my first Readiness, Sleep, and Activity scores.

Each score was explained brilliantly within the Oura app, leaving me with no questions regarding exactly how my data contributed to them.

On that note, the app itself is incredibly impressive.

I am told it has had a serious redesign since the release of the Oura Ring 4 and, by all accounts, I think it is the most impressive I have experienced in the smart ring market.

Instead of traipsing through numerous menus for specific data, the app highlights different stats and scores depending on what needs attention and the time of day.

This meant I could easily spot my Sleep and Readiness scores first thing in the morning, as well as keep an eye on my activity, calories and any outlying HRV data during the day.

Oura Ring 4, from £349

Another feature that gradually grew to impress me was the battery life.

Other smart ring models have lasted as little as two days on a full charge, but with the Oura Ring 4, I was mostly on track for around seven days from an average full charge.

This was only improved by the new charging case accessory (more on that later), so the Oura gets a big thumbs up in this regard.

I found the tracking of this ring to be excellent too, easily noting when I had woken up during the night, taken a brisk walk on my commute or when I started exercising.

Thanks to its AAD (Automatic Activity Detection), the Oura Ring 4 can automatically recognises over 40 different exercises based on movement and heart rate alone, meaning the ring didn’t miss a beat when I forgot to turn on tracking for runs and more.

So while there are undoubtedly plenty of positives surrounding the Oura Ring 4, I did also have some minor gripes.

My first grumble concerned the size of the ring.

Despite wearing the sizing kit for the required two days, I found the real device to be slightly larger than I had anticipated.

I know that the time of day, weather, and alcohol consumption can all be contributing factors as to why my fingers might vary in size; however, it did feel quite a bit looser.

This led to me wearing the ring on my middle finger, which meant the 3.51 mm thickness of my ceramic model was certainly a little more noticeable.

Finally, unlike its competitors – namely the Galaxy Ring and the Ultrahuman – Oura does in fact charge a subscription fee to make full use of its features.

While this is obviously quite annoying, they do make up for it with the intuitiveness of the app and the depth of content within.

Oura Ring 4 charging case: Is it worth it?

Oura Ring 4 Charging Case, £99

A new accessory for 2026, Oura’s sleek new charging case has officially arrived.

On first impressions, I was immediately struck by how compact the case is.

Measuring just 56mm in width and 55mm in length, this charger easily fits into small coat pockets, meaning I can carry it with me at all times.

The case also promises up to five full charges; this means I no longer have to charge my ring separately, and I know I’ll have around a month’s worth of battery at any given moment.

The case itself is made from aluminium, is water-resistant, and charges in just 90 minutes.

It is worth noting that the sizing isn’t universal, so unless your household members wear the same size ring, you won’t be able to share one case.

In line with Oura’s usual pricing, the case carries a premium price tag of £99.

However, if you are a dedicated Oura Ring user, I can personally see this being a worthwhile investment.

Personally, I consider the product to be well worth the money, and I’ll undoubtedly be using it for the foreseeable future.

Oura Ring 4 review: the verdict

So, after several weeks with the Oura Ring 4, I can quite confidently say that it is by far the most impressive smart ring I have tried so far.

While the subscription model will remain a point of contention in my eyes, the depth of data, overall aesthetic, and app interface are unmatched from my perspective.

If you can stomach the ongoing cost, the Oura Ring 4’s sheer accuracy and incredible tech mean this ring has taken the top spot among the many models I have tested.

Oura Ring 4 FAQs

Are Oura Rings worth the money?

If you’re an individual looking to monitor your health, recovery and sleep, Oura rings are worthwhile investment to help you along the way.

I personally found my Oura ring perfect for monitoring my difficult sleep schedule thanks its intricate analysis and handy tips.

I also found the recovery statistics great for understanding my load the day after intense weightlifting and jiu jitsu.

Overall, I believe Oura rings are a fantastic accessory to help along with those seeking to live a healthier lifestyle.

Are Oura Rings waterproof?

Oura Rings are highly water-resistant, meaning you can wear them in the shower, while swimming and while washing your hands.

The water-resistance is up to 100 meters, however, care should be given when scuba diving or in instances where the ring is submerged for more than 12 hours at once.

Can you wear an Oura Ring on any finger?

Yes, Oura Rings can be worn on any finger on either hand.

Personally, I wear my Oura Ring on my middle finger, but it is not uncommon for people to wear them on the index finger or ring finger either.

For optimal performance, ensure your ring fits somewhat snugly at the bottom of your finger with the marked sensors pointing towards the palm side of your hand.

Do Oura Rings monitor blood pressure?

Oura Rings currently do not directly measure blood pressure levels.

However, the brand is currently researching a “Blood Pressure Profile” feature.

This feature is set to use existing data to detect any signs of hypertension, but it is unclear when exactly the feature is due to release.

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