New Oura Ring 4 Features Slimmer Sensors and Improved Accuracy - MacRumors
Skip to Content

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

iOS 26 Battery Glass Feature

Three Years of 80% Charge Limits on iPhone: The Results

Tuesday October 6, 2026 12:59 pm PDT by
Since 2023, Apple's newer iPhones have had an 80 percent charge limit for those who want to extend battery lifespan. Charging to 80 percent instead of 100 percent is supposed to put less stress on the battery, improving longevity. For the last three years, I've used that setting on my iPhone. I started with the iPhone 15 Pro Max, then did the iPhone 16 Pro Max, and most recently, the iPhone...
MagSafe 3 Cable Midnight Feature

Apple Releases MagSafe 3 Charging Cable Firmware Update

Monday October 5, 2026 5:59 am PDT by
For the first time since February 2023, Apple has released a firmware update for the MagSafe 3 charging cable for the MacBook Pro and MacBook Air. Specifically, Apple last week released firmware version 3.2.0 for the USB-C to MagSafe 3 Cable. The previous firmware version for the cable was 3.1.12. It is unclear what is included in the latest firmware, as Apple does not publish release...
Prime Big Deal Days 25 Red and Green

Amazon Launches Prime Day Discounts on AirPods, iPad, MacBook Air, and More

Sunday October 4, 2026 9:15 am PDT by
Earlier this week, we began tracking early Prime Day deals on Apple-related accessories, and now Amazon has introduced major early deals on Apple products as well. This includes AirPods, iPads, MacBooks, and more, all available at some of the lowest prices of the year so far. Note: MacRumors is an affiliate partner with Amazon. When you click a link and make a purchase, we may receive a small...

Top Rated Comments

Mac Fly (film) Avatar
26 months ago
Ya'll measuring your life away.
Score: 23 Votes (Like | Disagree)
OS X Dude Avatar
26 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
26 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)
26 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
26 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)
peneaux Avatar
26 months ago
Not only is expensive, ,it also wants a subscription! $6 + tax per month.

No thanks.

From them:
"Without membership, you cannot access the Oura API"
Score: 7 Votes (Like | Disagree)
Latest Stories
LG Making Doorbell, Lock, and Cameras for Apple's Home Hub
LG Making Doorbell, Lock, and Cameras for Apple's Home Hub
8 hours ago
Apple to Report Q4 2026 Earnings on November 2
Apple to Report Q4 2026 Earnings on November 2
9 hours ago
Three Years of 80% Charge Limits on iPhone: The Results
Three Years of 80% Charge Limits on iPhone: The Results
10 hours ago
macOS 27.2 Further Hints at MacBook With Touch-Enabled OLED Display
macOS 27.2 Further Hints at MacBook With Touch-Enabled OLED Display
12 hours ago
The 15 Best Apple Deals Under $200 for Prime Day
The 15 Best Apple Deals Under $200 for Prime Day
12 hours ago
AirPods Pro 3 and AirPods Max 2 Get Big Price Drops for Prime Day
AirPods Pro 3 and AirPods Max 2 Get Big Price Drops for Prime Day
13 hours ago
Apple Releases Second Public Betas of iOS 27.2 and macOS Golden Gate 27.2
Apple Releases Second Public Betas of iOS 27.2 and macOS Golden Gate 27.2
13 hours ago
'Crossy Road Rush' Launching Exclusively on Apple Arcade in November
'Crossy Road Rush' Launching Exclusively on Apple Arcade in November
14 hours ago
Apple Watch Series 9 vs. Series 12 Buyer's Guide: Is It Worth Upgrading?
Apple Watch Series 9 vs. Series 12 Buyer's Guide: Is It Worth Upgrading?
14 hours ago
Prime Day Savings: TVs, Headphones, Chargers, and Other Tech Accessories
Prime Day Savings: TVs, Headphones, Chargers, and Other Tech Accessories
15 hours ago
Apple TV 4K Rumored to Support Four HomePods for Surround Sound
Apple TV 4K Rumored to Support Four HomePods for Surround Sound
16 hours ago
iPhone 18 Pro and Duo Were Once Planned With 16GB RAM, Leaker Says
iPhone 18 Pro and Duo Were Once Planned With 16GB RAM, Leaker Says
16 hours ago
Apple's Entire Mac Lineup Gets Massive Discounts for Prime Day
Apple's Entire Mac Lineup Gets Massive Discounts for Prime Day
17 hours ago
Prime Day iPad Deals Include Low Prices on iPad Air, iPad Mini, and More
Prime Day iPad Deals Include Low Prices on iPad Air, iPad Mini, and More
17 hours ago
Apple's $634 Million Apple Watch Patent Bill Just Got Even Bigger
Apple's $634 Million Apple Watch Patent Bill Just Got Even Bigger
17 hours ago
Amazon Prime Big Deal Days Offers Major Discounts on AirPods, iPads, and Much More
Amazon Prime Big Deal Days Offers Major Discounts on AirPods, iPads, and Much More
12 hours ago
Microsoft OneDrive to Drop Support for These iPhone Models
Microsoft OneDrive to Drop Support for These iPhone Models
19 hours ago
HomePod Mini Waits Reach Eight Weeks Ahead of Rumored Refresh
HomePod Mini Waits Reach Eight Weeks Ahead of Rumored Refresh
19 hours ago
Apple Music Is Getting a New Logo
Apple Music Is Getting a New Logo
19 hours ago
Apple Quietly Boosts Email Feature for iCloud+ Subscribers
Apple Quietly Boosts Email Feature for iCloud+ Subscribers
20 hours ago
iOS 27.2 May Let You Hide Specific Suggested Actions in Messages
iOS 27.2 May Let You Hide Specific Suggested Actions in Messages
21 hours ago
Sources: Apple Planning Two Sets of Product Launches in October
Sources: Apple Planning Two Sets of Product Launches in October
1 day ago
Apple Announces iPhone Duo Apps Can Now Be Submitted to App Store
Apple Announces iPhone Duo Apps Can Now Be Submitted to App Store
1 day ago
macOS 27.2 Adds Touch Gestures Ahead of MacBook Ultra
macOS 27.2 Adds Touch Gestures Ahead of MacBook Ultra
1 day ago
Apple and AT&T Have Yet to Explain Cause of iPhone 18 Pro Max Issue
Apple and AT&T Have Yet to Explain Cause of iPhone 18 Pro Max Issue
1 day ago
tvOS 27.2 Code Hints at Apple Intelligence for New Apple TV
tvOS 27.2 Code Hints at Apple Intelligence for New Apple TV
1 day ago
Apple Seeds Third macOS Golden Gate 27.2 Beta to Developers
Apple Seeds Third macOS Golden Gate 27.2 Beta to Developers
2 days ago
Apple Releases Third watchOS 27.2, tvOS 27.2 and visionOS 27.2 Betas
Apple Releases Third watchOS 27.2, tvOS 27.2 and visionOS 27.2 Betas
2 days ago
Apple Releases Third iOS 27.2 Beta
Apple Releases Third iOS 27.2 Beta
2 days ago
Apple Cash Adds ID Check for Reloads, Teases Bank Funding
Apple Cash Adds ID Check for Reloads, Teases Bank Funding
2 days ago