Oura Ring 5
Product overview

Oura Ring 5

Product information drawn from the linked manufacturer sources. Ninaix has not tested this device.

Oura Ring 5 is a smart ring in sizes 6 to 13. Oura gives a typical battery range of 6 to 9 days for new rings.[1][2] Ninaix has not tested it.

Retailer searches

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Key facts

Format
Smart ring[1]
Sizes
Sizes 6 to 13, with its own sizing kit[1][5]
Dimensions
Width 6.09 mm, thickness 2.28 mm. Weight from 2 g depending on ring size[1][6]
Compared with Ring 4
Oura states 40% less volume than Oura Ring 4[1]
Battery
Typically 6 to 9 days[2]For new rings. Depends on ring size, Oura App settings, feature configuration, activity, battery age and usage; actual results vary.
Charging
About 80 minutes, depending on battery level[1]
Water resistance
100 m / 328 ft; suitable for sauna and water sports but not diving[1]
Build
Fully titanium design; PVD coating on all finishes (scratch resistance)[1]
Finishes
Black, Silver, Stealth, Brushed Silver, Gold, Deep Rose[1]
Phone
Oura App: iOS 16 or later; Android 11 or later with Google Play services; phone must support Bluetooth 5.0; Bluetooth must be on to sync[4]
Membership
Without a membership the ring can be used only with limited functionality; membership unlocks detailed insights and personalized guidance[3][4]
In the box
Oura Ring 5, Size-specific standard charger and USB-C cable[6]

How Oura Ring 5 works

Choose a size
Oura Ring 5 has its own sizing kit (white ring sizers, sizes 6-13). Sizing differs slightly between generations; use the right sizing kit.[5]
Pair and sync
Use the Oura App on a supported phone. Bluetooth must be on to sync.[4]
Start membership
New members receive one complimentary month of membership, starting when the ring pairs with the app; it cannot be paused or restarted[3]
Follow your data
Detailed sleep analysis; advanced temperature monitoring. Readiness Score is listed as a feature name on the product page; Readiness is one of three daily scores in the Oura App[1][3]

What it offers

Sensors
Two tri-LED emitters and two photodetectors. Digital temperature sensor. Accelerometer: Tracks movement and activity 24/7. This is a summary, not a complete sensor inventory.[1][6]
Feature names
Readiness Score is listed as a feature name on the product page; Readiness is one of three daily scores in the Oura App. Blood Pressure Signals is listed as a feature name on the Oura product page. These feature names do not establish medical effect or measurement accuracy.[6]
Battery
Oura gives 6 to 9 days as the typical range for new rings. This is a manufacturer estimate, not a Ninaix test result.[2]

Requirements and limits

Ongoing membership
Recurring: auto-billed once a month or once a year depending on plan; renews automatically at the start of each billing cycle when a payment method is on file. There is no option to pause an Oura Membership. After cancelling a paid plan, access continues for the remainder of the billing period. Membership and in-app features are only available in supported countries; fees vary by country.[3]
Without membership
Three daily scores (Readiness, Activity, Sleep), ring battery, basic profile information, app settings and Explore content; no Oura API access; data export (CSV) still possible via Membership Hub[3]
Battery varies
Depends on ring size, Oura App settings, feature configuration, activity, battery age and usage; actual results vary.[2]
Not a medical device
Oura Ring is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions or illnesses[4]

Questions before choosing

How long does the battery last?

Oura gives a typical range of 6 to 9 days for new rings. Depends on ring size, Oura App settings, feature configuration, activity, battery age and usage; actual results vary.[2]

Do I need a membership?

Without a membership the ring can be used only with limited functionality; membership unlocks detailed insights and personalized guidance. Recurring: auto-billed once a month or once a year depending on plan; renews automatically at the start of each billing cycle when a payment method is on file. There is no option to pause an Oura Membership. Membership and in-app features are only available in supported countries; fees vary by country.[3]

Does my phone work?

Oura App: iOS 16 or later; Android 11 or later with Google Play services; phone must support Bluetooth 5.0; Bluetooth must be on to sync[4]

Which sizing kit should I use?

Oura Ring 5 has its own sizing kit (white ring sizers, sizes 6-13). Sizing differs slightly between generations; use the right sizing kit.[5]

What do the retailer buttons do?

They open a search for Oura Ring 5 at that retailer. They are searches, not offers. Consult the manufacturer for current pricing; retailer searches do not verify availability.

Keep reading

Sources

  1. Oura Ring 5 product guidance (Discover Oura Ring 5), page last updated 2026-10-07
  2. Oura battery guidance, page last updated 2026-10-07
  3. Oura membership guidance, page last updated 2026-10-16
  4. Oura general FAQs, page last updated 2026-09-18
  5. How to choose the right Oura Ring size, page last updated 2026-10-07
  6. Oura Ring 5 product page, no update date shown

The product record contains source checks dated 2026-10-26; these dates describe the recorded source checks. This overview uses published product information, not a Ninaix device test.