New Oura Ring 4 Features Slimmer Sensors and Improved Accuracy

Oura today announced its latest smart ring, the all-titanium Oura Ring 4, featuring improved accuracy and a redesigned companion app.

oura ring 4
The Oura Ring 4 introduces "Smart Sensing" technology, which the company claims enhances data accuracy by adapting to the specific contours of an individual's finger. This new algorithm reportedly improves blood oxygen sensing accuracy by 30% over the Oura Ring 3, and reduces gaps in heart rate tracking. The ring's sensors are also now recessed, which is said to provide a more comfortable fit for all-day wear.

The new wearable boasts a slimmer profile and expanded size options to cater to a wider range of users. There are now twelve sizes, ranging from 4 to 15. (Oura Ring 3 was limited to sizes 6 to 13.) The expanded size range comes as Oura reports a shift in its user demographics, with women in their 20s now representing its fastest-growing segment. The company says battery life has also been extended to up to eight days, depending on the size of the ring.

Alongside the hardware update, Oura has also overhauled its companion app with a new three-tab interface: Today, Vitals, and My Health. The redesign aims to simplify navigation and provide clearer insights into both daily and long-term health metrics. New features include automatic activity detection for over 40 activities, enhanced stress tracking, and a "Fertile Window" prediction tool for users trying to conceive.

Priced at $349, the Oura Ring 4 will be available in six colors: Gold, Rose Gold, Brushed Silver, Stealth, Black, and Silver. Shipping starts from October 15, but it's worth noting that Oura Ring 4 continues to be available via the company's controversial subscription model, with membership priced at $5.99 per month or $69.99 annually after the included one-month trial.

Apple Ring Rumors

Earlier this year when the first reports of Samsung's Galaxy Ring began to circulate, rumors about Apple's potential entry into the wearable ring market also started swirling. Several patents suggest Apple has explored the concept, and recent reports indicate that the company's industrial design team has presented a health-focused smart ring idea to executives.

Bloomberg's Mark Gurman in February said the ring could be a lower-cost alternative to the Apple Watch that could sync health and fitness data with a paired iPhone. However, Gurman at the time also said that active development was not underway, so it currently remains unclear if it will be released in the near-term, if indeed ever.

Popular Stories

iPhone Pocket Short

iPhone Pocket is Now Completely Sold Out Worldwide

Tuesday November 25, 2025 7:16 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. However, it is now completely sold out in all countries where it was released. iPhone Pocket became available to order on Apple's online store starting Friday, November 14, in the United States, France, China, Italy, Japan, Singapore, ...
New Intel Logo

Apple and Intel Rumored to Partner on Mac Chips Again in a New Way

Friday November 28, 2025 7:33 am PST by
While all Macs are now powered by Apple's custom-designed chips, a new rumor claims that Apple may rekindle its partnership with Intel, albeit in a new and limited way. Apple supply chain analyst Ming-Chi Kuo today said Intel is expected to begin shipping Apple's lowest-end M-series chip as early as mid-2027. Kuo said Apple plans to utilize Intel's 18A process, which is the "earliest...
iphone black friday gold

The Best Black Friday iPhone Deals Still Available

Friday November 28, 2025 6:24 am PST by
Cellular carriers have always offered big savings on the newest iPhone models during the holidays, and Black Friday 2025 sales have kicked off at AT&T, Verizon, T-Mobile, and more. Right now we're tracking notable offers on the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air. For even more savings, keep an eye on older models during the holiday shopping season. Note: MacRumors is...
apple store down feature

Here's Why the Apple Store is Going Down

Thursday November 27, 2025 1:01 pm PST by
Apple's online store is going down for a few hours on a rolling country-by-country basis right now, but do not get your hopes up for new products. Apple takes its online store down for a few hours ahead of Black Friday every year to tease/prepare for its annual gift card offer with the purchase of select products. The store already went down and came back online in Australia and New Zealand, ...
streaming black friday 2025

Best Black Friday Streaming Deals - Save Big on Apple TV, Disney+, Hulu, and More

Thursday November 27, 2025 1:14 pm PST by
We've been focusing on deals on physical products over the past few weeks, but Black Friday is also a great time of year to purchase a streaming membership. Some of the biggest services have great discounts for new and select returning members this week, including Apple TV, Disney+, Hulu, Paramount+, Peacock, and more. Note: MacRumors is an affiliate partner with some of these vendors. When...
Cyber Monday Deals 2025

Best Cyber Monday Apple Deals Include Big Discounts on AirPods, Apple Watch, and More

Sunday November 30, 2025 7:33 am PST by
Cyber Monday is here, and you can find popular Apple products like AirPods, iPad, Apple Watch, and more at all-time low prices. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running....
Netflix Smaller 4

Netflix Kills Casting From Its Mobile App to Most Modern TVs

Monday December 1, 2025 4:36 am PST by
Netflix has quietly removed the ability to cast content from its mobile apps to most modern TVs and streaming devices, including newer Chromecast models and the Google TV Streamer. The change was first spotted by users on Reddit and confirmed in an updated Netflix support page (via Android Authority), which now states that the streaming service no longer supports casting from mobile devices...
iphone air camera

iPhone Air Flop Sparks Industry Retreat From Ultra-Thin Phones

Thursday November 27, 2025 3:14 am PST by
Apple's disappointing iPhone Air sales are causing major Chinese mobile vendors to scrap or freeze their own ultra-thin phone projects, according to reports coming out of Asia. Since the ‌iPhone Air‌ launched in September, there have been reports of poor sales and manufacturing cuts, while Apple's supply chain has scaled back shipments and production. Apple supplier Foxconn has...
studio display purple february

M5 iPad Pro Could Hint at New Studio Display Feature

Sunday November 30, 2025 10:30 am PST by
The updated specs of the M5 iPad Pro may point toward a major new feature for Apple's next-generation Studio Display expected in early 2026. Apple's latest iPad Pro debuted last month and contains one display-related change that stands out: it can now drive external monitors at up to 120Hz with Adaptive Sync. The feature should deliver lower latency, smoother motion, and fewer visual...

Top Rated Comments

Mac Fly (film) Avatar
15 months ago
Ya'll measuring your life away.
Score: 23 Votes (Like | Disagree)
OS X Dude Avatar
15 months ago

I’d be into an apple ring purely as a tech-forward fashion accessory (same way I view the watch) but I don’t think they would cannibalize the market for their own product. It would have to do something that the Apple Watch couldn’t do.

On the other hand I could totally see myself getting an Oura ring. Maybe never even charging it or opening the app either for that matter. Just something to wear. They should make one in gold.
It'd be aimed as an alternative for people who like wearing dress watches but still want to track their vitals/health and don't want to resort to a Fitbit or, as some people do, wearing an Watch on one wrist and the dress watch on the other!

I imagine, for wearers of both the Ring and Watch together, that the tracking of certain vitals would be made more accurate too.
Score: 13 Votes (Like | Disagree)
xDKP Avatar
15 months ago

It'd be aimed as an alternative for people who like wearing dress watches but still want to track their vitals/health and don't want to resort to a Fitbit or, as some people do, wearing an Watch on one wrist and the dress watch on the other!

I imagine, for wearers of both the Ring and Watch together, that the tracking of certain vitals would be made more accurate too.
Yeah I wear my Apple Watch 99% of days, but if Apple made an Apple ring to keep track of vitals, I could use my Apple Watch on some days and not loose out on metrics when I want to wear my mechanical watches once in a while - would be nice.

Also I sleep with mine and not really an issue, but have heard many say they think it's uncomfortable so that could be a sleep tracker as well.
Score: 11 Votes (Like | Disagree)
Tanax Avatar
15 months ago
I've had the Oura Ring 3 for like 2 years now. Here are my thoughts:


* Form factor is AMAZING, especially during sleeping, much nicer than an Apple Watch that the ring replaced
* Surprisingly good at recognizing workouts, walks, etc and allows me to one-click add them afterwards rather than having to "start" a walk
* I don't mind the subscription to be honest. Of course, no subscription would be better
* Great battery life (up to a week in the beginning)


Some things that now have made me order the new Apple Watch and plan to cancel my subscription of the ring (i.e. stop using it):


* The app connection is finicky, it often fails to notify me when battery is about to run out, causing it to not record my sleep, etc, nor does it always notify me that charging is complete, causing me to have it on the charger for longer than it needs
* Compared to a watch, it's much nicer to have on while sleeping, but compared to a regular ring, it's much "thicker", causing you to not be able to fully close your fingers (i.e. when scooping up water)
* They have an intense focus on women health, so much so that I feel like I'm paying for something that doesn't even focus on bringing features that benefit me (I'm a man)
* Since it's a ring, it doesn't have valuable features that a watch would have, i.e. being able to pay with it, listening to music from it which are the main things for me missing, especially if you want to go on a run without your phone.. you can't listen to music, nor will you get any GPS tracking since it doesn't have that
* Battery degradation has been pretty bad, now only reaching like 2-3 days rather than 7 from the start
* It's draining my PHONE battery HUGELY! Especially with location services on. Absolutely terrible!!


It doesn't look like their Oura Ring 4 solves much of these. They say they made it "sleeker" but it looks like they only refer to the inside of the ring being flat rather than the bumps for the sensors today. That was never the issue IMO, but the thickness of the ring shell.

Going to try the Apple Watch 10 now and see how that works. My last Apple Watch was a 3, so quite a while ago!
Score: 10 Votes (Like | Disagree)
JippaLippa Avatar
15 months ago
I oughta be honest; I'd probably get an apple ring.
I like using my apple watch during workouts, but I find it bulky and bad looking to be worn on a constant basis.
Score: 8 Votes (Like | Disagree)
Roll0 Avatar
15 months ago
A smart pair of underpants what I'm waiting for...
Score: 7 Votes (Like | Disagree)