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

AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
iOS 26

iOS 26.2 Available Next Month With These 8 New Features

Tuesday November 11, 2025 9:48 am PST by
Apple released the first iOS 26.2 beta last week. The upcoming update includes a handful of new features and changes on the iPhone, including a new Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. In a recent press release, Apple confirmed that iOS 26.2 will be released to all users in December, but it did not provide a specific release date....
CarPlay Pinned Messages

iOS 26.2 Adds New CarPlay Setting

Thursday November 13, 2025 6:48 am PST by
iOS 26 extended pinned conversations in the Messages app to CarPlay, for quick access to your most frequent chats. However, some drivers may prefer the classic view with a list of individual conversations only, and Apple now lets users choose. Apple released the second beta of iOS 26.2 this week, and it introduces a new CarPlay setting for turning off pinned conversations in the Messages...
homepod mini thumb feature

New HomePod Mini, Apple TV, and AirTag Were Expected This Year — Where Are They?

Wednesday November 12, 2025 11:42 am PST by
While it was rumored that Apple planned to release new versions of the HomePod mini, Apple TV, and AirTag this year, it is no longer clear if that will still happen. Back in January, Bloomberg's Mark Gurman said Apple planned to release new HomePod mini and Apple TV models "toward the end of the year," while he at one point expected a new AirTag to launch "around the middle of 2025." Yet,...
ios 26 digital id passport wallet

Apple Announces Launch of U.S. Passport Feature in iPhone's Wallet App

Wednesday November 12, 2025 9:15 am PST by
Apple today announced that iPhone users can now create a Digital ID in the Apple Wallet app based on information from their U.S. passport. To create and present a Digital ID based on a U.S. passport, you need: An iPhone 11 or later running iOS 26.1 or later, or an Apple Watch Series 6 or later running watchOS 26.1 or later Face ID or Touch ID and Bluetooth turned on An Apple Account ...
Tesla Charging

Tesla Working to Add Apple CarPlay Support to Vehicles

Thursday November 13, 2025 8:31 am PST by
Tesla is working to add support for Apple CarPlay in its vehicles, Bloomberg's Mark Gurman reports. Tesla vehicles rely on its own infotainment software system, which integrates vehicle functions, navigation, music, web browsing, and more. The automaker has been an outlier in foregoing support for Apple CarPlay, which has otherwise become an industry standard feature, allowing users to...
m1 chip slide

Five Years of Apple Silicon: M1 to M5 Performance Comparison

Monday November 10, 2025 1:08 pm PST by
Today marks the fifth anniversary of the Apple silicon chip that replaced Intel chips in Apple's Mac lineup. The first Apple silicon chip, the M1, was unveiled on November 10, 2020. The M1 debuted in the MacBook Air, Mac mini, and 13-inch MacBook Pro. The M1 chip was impressive when it launched, featuring the "world's fastest CPU core" and industry-leading performance per watt, and it's only ...
tvOS 26 Profiles

tvOS 26.2 Adds a Useful New Feature to Your Apple TV

Friday November 14, 2025 10:02 am PST by
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account. In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...
iOS 26

Everything New in iOS 26.2 Beta 2

Wednesday November 12, 2025 3:29 pm PST by
Apple today provided developers with the second beta of iOS 26.2, which adds a few new features worth knowing about. Measure App Apple's Measure app now features a Liquid Glass design for the level, with two Liquid Glass bubbles instead of white circles. Games App There's now an option to sort games in the Games app Library by size, in addition to Name and Recent. CarPlay The...
iPhone Pocket Short

iPhone Pocket Now Available to Order, But Already Selling Out

Friday November 14, 2025 6:20 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. iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...

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)