Men's Health May 29, 2026 0 Comments

Could This New Oura Ring Be the Health Game-Changer We Didn’t See Coming?

Ever wondered if fitness tech could get any lighter and more seamless – like, so small you barely notice it’s there? Well, the folks at Oura might just have nailed it with their latest marvel: the Oura Ring 5. This tiny titan promises to be not only the most compact and featherlight version yet—40% lighter than its predecessor—but also smarter and more precise. If you’ve been tracking your health closely, sizing up for a perfect fit just got easier with their $10 sizing kits (yep, they do count toward your purchase). And here’s the kicker: pre-orders are already live, with shipments starting June 4, so your finger might soon be sporting the ultimate all-day health buddy. Curious about what sets this smart ring apart from the pack and why it’s creating such a stir? Let’s dive in. LEARN MORE

3 min read

The latest version of our best-tested smart ring is now up for pre-order and sizing kits are available now.
The Oura Ring 5 is the smallest iteration to date and 40% lighter than its predecessor.
Oura’s latest fitness tracker will ship out pre-orders on June 4.

OURA JUST ANNOUNCED the launch of its biggest (but in a literal sense, smallest) innovation to date: the Oura Ring 5. The brand promises the latest in its expansive line of high-powered smart rings will be its most compact version yet, and 40 percent smaller than the Oura Ring 4. Pre-orders are now open on its site with first shipments going out on June 4.

We’ve tested every Oura Ring since the first release, and one of the critical steps we recommend before purchasing a ring is getting one of Oura’s sizing kits. This kit is only $10, and the amount is applied toward the cost of the ring, but it assures that you get right the best fit for your finger. Each new iteration of the Oura Ring is a bit different, and the best readings come when it is snug on your forefinger.

OURA RING 5 SIZING KIT

Credit: Courtesy of Retailer

Our editors have worn the Oura Ring 4 since it was released in late 2024 and have been impressed by its comfort, which easily fits into any active individual’s lifestyle. So the idea of an even more low-profile offering has us excited.

In addition to the 5’s new lightweight design, Oura also says it’s the most accurate version to date. The latest model introduces proprietary software features that combine your historical clinical metrics with real-time biometric insights for a more predictive view of your overall health. The 5 will introduce an expansion to its Symptom Radar—one of our favorite components of the 4, which was our best-tested smart ring of 2025.

An overhaul of the ring’s electrical, mechanical, battery, optical, and sensing designs makes for a ring that’s both lighter and thinner than previous iterations. It also introduces a smoother curvature for a more natural, all-day fit. The Oura Ring 4 was noticeably more comfortable in our testing than its predecessor, ditching nodules on the inside of the ring and shifting to a full titanium build.

The 5 is made with a similar lightweight non-allergenic titanium that Oura touts as “more durable and scratch resistant” than the 4. It’s also now fully waterproof; the 4 was water-resistant up to 100 meters.

Members can now also upload lab results directly into the Oura app for a more comprehensive view of their overall health. A new opt-in, IRB-approved study in Oura Labs pairs cognitive assessments from Cambridge Cognition to monitor your cognitive health. The ring also features Blood Pressure alerts to detect spikes, and it can now track patterns during sleep, when they are clearest. Similarly, the 5 implements a 30-day rolling view of sleep-related breathing patterns and disturbances to monitor if and how breathing changes are impacting your sleep.

We’ve started testing the new ring, and will be reporting back after we’ve spent some time with the new device. But all things considered, it looks like the latest version of one of our all-time favorite fitness trackers will be Oura’s best yet. And you won’t have to wait long to get your hands on one either.

OURA RING 5 SIZING KIT

Credit: Courtesy of Retailer

Tim Kohut is the Deals and Trends Editor for Popular Mechanics, Men’s Health, Best Products, and Runner’s World. He has extensive product review and gear coverage expertise, particularly in tech, home, auto, and health. Tim was previously the Deputy Commerce Editor of The Drive and a Commerce Editor at BGR. He’s also overseen gear coverage and strategy at Popular Science, Bob Vila, Outdoor Life, and Field and Stream. He has a strong affinity for cats, Batman, and early 90’s Nicolas Cage films, in that order.

Charles Thorp is the Fitness and Reviews Editor at Men’s Health, where he shares the best product recommendations in gym equipment, recovery tools, supplements, and more. Following an early life in athletics, Charles became a NASM-certified trainer and began writing programs alongside the most respected coaches in the world. Since entering the world of fitness content, Charles has had the opportunity to learn from and train alongside high performance individuals from the NFL, UFC, NBA, Formula 1, CrossFit, US Olympics, and Navy SEALs. When he’s not writing about training programs or gear, he can be seen at the gym or in the wild, putting them to the test.