Our all-round ring pick

OuraOura Ring 5

Name: Oura Ring 5
Brand: Oura
Price: 399.00 USD

Compact titanium sleep ring that needs a paid membership

By Porsche Ma Facts checked Oct 13, 2026

Source-based analysis, not hands-on testing. Our method

Cofounder of Superhuman Chambers · About the author. General information, not medical advice. No independent clinical review is claimed.

The verdict

Oura Ring 5 is a compact titanium sleep ring, at $399 for the Silver finish. It's for you if you wear a whole size from 6 to 13 and want sleep staging and readiness scores without a wrist device. The catch is the membership: after the first included month it's $69.99 a year, and without it the app shows only three daily scores.

The trade-off

Without a membership the app shows only three daily scores, and Ring 5 stores three days of data, compared with seven on Ring 4.

Oura Ring 5, manufacturer product image — Photo: Oura.Source ↗

Model reviewed: Silver finish, whole sizes 6 to 13 chosen with the Ring 5 sizing kit, plus Oura Membership

$399

US price, checked Oct 13, 2026

Check price at Oura

No affiliate commission on this link. Check the exact variant before buying.

About this price

Oura's Silver product page and its Ring 5 store page both showed this price for the Silver finish. Neither showed a sale, strike-through, member or coupon price. The price is before tax and shipping. Black was also $399, and Gold, Deep Rose, Stealth and Brushed Silver were $499. The price doesn't include the membership, which Oura charges separately, or the optional protection plan upgrades.

A GOOD FIT FOR

You wear a whole ring size from 6 to 13, want sleep staging and readiness scores without a wrist device, and will keep paying for membership.

You want sleep staging, readiness scores and temperature trends from a ring instead of a wrist device
You wear a whole ring size from 6 to 13 and will size with the Ring 5 sizing kit first
You're already an Oura member: Oura says the membership is tied to your account, not the ring, and keeps working with Ring 5

THINK TWICE IF

Anyone who doesn't want an ongoing fee: without a membership, the app shows only the Readiness, Activity and Sleep scores
Anyone whose fit falls outside whole sizes 6 to 13
Divers, since Oura rates the ring to 100 m but says it's not for diving
Anyone who often goes more than three days without syncing to the app

What still needs checking

What the included 1-year protection plan covers, such as battery wear, scratches or loss
The Charging Case's price
Whether the two-photodetector design changes heart-rate or sleep-staging accuracy compared with Ring 4
How accurate the ring itself is: the studies behind Oura's accuracy figures were published in 2020 and 2021, before Ring 5
Battery lifespan and replacement options
The charger's power draw

The practical details.

Specifications for Oura Ring 5
Exact variant	Silver finish, whole sizes 6 to 13 chosen with the Ring 5 sizing kit, plus Oura Membership
Battery life	Up to 6 to 9 days, depending on ring size and usage. About 80 minutes to charge, depending on battery level
Sensors	Red, green and infrared LEDs with 2 photodetectors, plus a temperature sensor and an accelerometer
Membership	$5.99 a month or $69.99 a year (US, before tax). New members get the first month included, but adding a ring to an existing account doesn't add another free month
Sizes	Whole sizes 6 to 13 only. The Ring 5 sizing kit is required, since Ring 4 sizing differs
Water resistance	100 m (328 ft), IP68. Oura says it's not for diving
On-ring data storage	Up to 3 days (up to 7 days on Ring 4)
Compatibility	iOS and Android, over Bluetooth 5.0
Dimensions	6.09 mm wide and 2.28 mm thick, with a 0.7 mm sensor dome. Weight starts at 2 g, depending on ring size.
Materials	The inner and outer surfaces are titanium, and the inside has no seams. Oura says every finish has a super-hard PVD coating for scratch resistance. This review covers the Silver finish.

Before you buy

InstallationNo installation

No installation. Choose your size with the Ring 5 sizing kit, wearing it for at least 24 hours first. Oura says the index finger gives the best accuracy. Then pair the ring with the Oura App on iOS or Android.

WarrantyA 1-year protection plan comes with the ring

A 1-year protection plan comes with the ring. The Silver product page offers upgrades to 2 years for $45 or 3 years for $60. The product page doesn't say what the plan covers, such as battery wear, scratches or loss. Oura's return FAQ says warranty replacements can't be returned or refunded.

ReturnsOura's general Return & Exchange FAQs let you return an order within 30 days…

Oura's general Return & Exchange FAQs let you return an order within 30 days of receiving it. Items must be fully functional and undamaged. A ring set has to come back with the ring, charger and USB-C cable. Each item can be returned or exchanged once, and ring exchanges are only for a different size of the same ring. Refunds go to the original payment method, but original shipping, handling and customs fees aren't refunded. Rings bought from other retailers go back through that retailer. Oura says to cancel the membership in the app or Membership Hub when you return a ring, so the charges don't continue.

More about this assessment

Oura Ring 5 is a titanium smart ring, 6.09 mm wide, that Oura says has 40% less volume than Ring 4. Battery life is up to 6 to 9 days, depending on ring size and usage. The Silver finish costs $399, and most insights need a membership after the first included month. At $69.99 a year, three years come to $608.97 before tax. Without a membership, the app shows only the Readiness, Activity and Sleep scores. The studies behind Oura's accuracy figures predate Ring 5.

Strengths on paper

Oura says it has 40% less volume than Ring 4, at 6.09 mm wide and 2.28 mm thick
Oura rates the battery at 6 to 9 days, and a charge takes about 80 minutes
Water resistant to 100 m and rated IP68, and Oura says it suits sauna use and water sports
Oura says that with an active membership it has the same features as Ring 4, including detailed sleep analysis, 24/7 heart rate, blood oxygen (SpO2) and cycle insights
A 1-year protection plan is included, and Oura lists the ring as HSA/FSA eligible

Limitations

Full insights need a membership after the first month: $5.99 a month or $69.99 a year in the US
Stores up to three days of data, compared with up to seven on Ring 4
Two photodetectors, compared with three on Ring 4
Whole sizes 6 to 13 only, a narrower range than Ring 4's 4 to 15
Sizing differs slightly from Ring 4, so Oura says to use the Ring 5 sizing kit
A full day of charge in 10 minutes needs the Charging Case, which is sold separately

What it costs to own.

Adjust the assumptions for your use. Missing costs stay unknown.

PLAN YOUR OWNERSHIP COSTS

What will it cost to own?

Change the assumptions to fit your use. Leave an unknown cost blank. Add water, subscriptions, cleaning, shipping and taxes if they apply. Use average operating power, not the maximum rating.

Purchase price ($)Installation / accessories ($)Annual consumables ($)Average operating power (W)Hours per dayAnnual other costs ($)Electricity ($/kWh)Years

3-year known subtotal

$608.97

Incomplete: energy use. This is not the full ownership cost.

Energy component: Unknown

Purchase + installation + years × (annual consumables + annual other) + watts/1000 × hours/day × 365 × years × $/kWh. Annualized allowances, not an exact replacement schedule. Excludes taxes, shipping, finance and resale unless entered.

Replacement parts & cost assumptions

No scheduled consumable is listed. That does not mean zero maintenance or repair costs.

Other annual costs use the US annual membership price of $69.99 a year before tax. Monthly billing at $5.99 comes to $71.88 a year. On annual billing after the first included month, you make three annual payments in three years. That puts the three-year estimate at $399 + 3 × $69.99 = $608.97 before tax.
Oura lists no recurring parts, so annual consumables are $0. That doesn't mean a battery replacement or a lost ring costs nothing. Oura doesn't state battery lifespan or replacement terms on the pages checked.
The Silver product page lists a free sizing kit. The sizing guide says a complimentary kit comes with the Size Later option. The estimate leaves out the optional 2-year ($45) or 3-year ($60) protection plan upgrade. The Charging Case is sold separately, and the product page doesn't show its price. Oura doesn't state the charger's power draw, so energy is unknown.
Oura lists the ring as HSA/FSA eligible. The estimate doesn't deduct any tax saving.

Evidence & sources.

How accurate are sleep trackers? Our evidence review grades the research as Moderate. That grade is about the claim, not about this product.

Manufacturer claimOura states 99% heart-rate accuracy (r² compared with ECG) and 95% sleep-staging accuracy compared with a clinical sleep lab.^{1, 8} These are Oura's figures, and the page doesn't say they were measured on Ring 5. The heart-rate footnote links an Oura blog post. That post cites a 2020 study of 49 healthy adults that compared the ring with ECG. The study reported r² of 0.996 for resting heart rate and 0.980 for HRV. The post doesn't name the ring generation. The sleep footnote says the 95% figure is for 2-stage staging (sleep versus wake) against polysomnography. It cites a 2021 paper in Sensors.
Published studyA second-generation Oura research ring (Gen2M) was tested against polysomnography over 440 nights from 106 people. With the full multi-sensor model, it reached 96% accuracy for sleep versus wake and 79% for four stages (wake, light, deep and REM).⁹ This is the paper Oura cites for its 95% figure. It tested a Gen2 research ring, not Ring 5, so it doesn't show how Ring 5 performs. The accelerometer-only model reached 94% for two stages and 57% for four.
Manufacturer claimRing 5 has the same membership features as Ring 4. It has fewer photodetectors (2 compared with 3) and less on-ring data storage (3 days compared with 7).² This is Oura's own comparison. None of the sources checked is a Ring 5-specific accuracy study.
Manufacturer claimWithout a membership, the app shows only the Readiness, Activity and Sleep scores, ring battery, basic profile information, app settings and Explore content.⁴ Without a membership, you can still export all your Oura data in CSV format through the Membership Hub.