Quick verdict
The Oura Ring 5 is the smart ring to beat on sleep and readiness tracking in 2026 — and it is now 40% smaller than the Ring 4. Announced on May 28, 2026 and shipping from June 4, it starts at $399, rebuilds the sensing system around 12 signal pathways, and adds a Health Radar software tier with nighttime blood pressure signals and breathing monitoring. Based on the specs, pricing and early reviews, it is the most polished ring you can buy — provided you accept that the ring is only half the cost, because most insights sit behind a $5.99-a-month membership.
What is the Oura Ring 5?
The Ring 5 is Oura’s fifth-generation titanium health ring, and the company calls it the world’s smallest smart ring. It measures 6.09mm wide and 2.28mm thick — down from 7.9mm and about 2.88mm on the Ring 4 — and starts at just 2 grams depending on size. Sizes run 6 to 13, narrower than the Ring 4’s range, and it is water-resistant to 100 metres, so it stays on in the shower, pool and overnight, which is exactly where a sleep tracker earns its keep.
Sensors, Health Radar and the AI layer
Oura redesigned the sensing system with more powerful, repositioned LEDs and 12 signal pathways, claiming clearer readings across a wider range of finger types and skin tones. The ring tracks more than 50 metrics — sleep stages, heart rate, HRV, blood oxygen, skin temperature trends, stress and activity — and turns them into Sleep, Readiness and Activity scores in the app. The new Health Radar tier adds Blood Pressure Signals (nighttime pattern monitoring, not a cuff replacement) and nighttime breathing tracking, alongside GLP-1 Insights and expanded health records. The Oura Advisor AI interprets the data into plain-language guidance. Health Radar features began rolling out in the US, UAE and India, expanding to more than 30 further markets from October 6, 2026.
Battery and charging
Battery life is rated at 6–9 days per charge, slightly better than the Ring 4’s 5–8 days despite the smaller body. New this generation is an optional portable charging case ($99) that stores about a month of charge and supports wireless charging — useful for travel, but another add-on cost on top of an already premium ring.
Pros and cons
- Pros: 40% smaller and from 2g, so it genuinely disappears overnight; redesigned sensors aim for better accuracy across skin tones; 6–9 day battery; 50+ metrics with mature Sleep and Readiness scoring; optional travel charging case; HSA/FSA eligible on Oura’s store.
- Cons: $399–$499 up front, then $5.99/month or $69.99/year for most insights; sizes only run 6–13; not a workout tracker replacement — no screen, no live pace or GPS; premium finishes add $100 for looks alone.
Who should buy the Oura Ring 5?
Buy it if sleep, recovery and long-term health trends are the point, and you dislike wearing a watch to bed. The smaller body makes it the easiest ring here to wear 24/7, and Oura’s app remains the benchmark for turning raw biometrics into advice you can act on. Skip it if you refuse subscriptions on principle — RingConn and Samsung sell capable rings with no monthly fee — or if training load and workout accuracy matter more than sleep, where a watch or a WHOOP band still does more.
Frequently asked questions
How much does the Oura Ring 5 cost in total? The ring is $399 for Silver and Black or $499 for premium finishes, plus membership at $5.99 a month or $69.99 a year, with the first month free. Budget roughly $469 for year one in a base finish.
Does the Oura Ring 5 work without a membership? The ring still collects data, but without membership you lose most of the detailed insights, scores and AI features that are the reason to buy it.
How long does the Oura Ring 5 battery last? Oura rates it at 6–9 days per charge depending on size and features enabled, such as blood oxygen tracking.
Can the Oura Ring 5 measure blood pressure? No. Its Blood Pressure Signals feature watches nighttime patterns and trends; it does not give individual cuff-style readings and is not a medical device.
Price and availability
The Oura Ring 5 is on sale now from Oura and major retailers, starting at $399 for Silver and Black and $499 for premium finishes, in sizes 6–13. A free sizing kit ships before the ring on Oura’s own store, and the optional portable charging case is $99. Membership is $5.99 a month or $69.99 a year after a free first month. No Amazon link is included today because an exact listing for the finish and size could not be verified live at publish time.