Oura

Oura Ring 5

Promising researchWhat does this mean? ›
£399at t3.com

Check availability

Price checked

Buy now at t3.com
  • From £399 plus £69.99 a year membership
  • Up to 9 days battery (brand claim)

We may earn a commission if you buy through our links. How we choose ›

From £399 plus £69.99 a year membership

form
Titanium smart ring
sizes
6 to 13
weight
2.0 to 2.7 g

Where we checked it: t3.com ›

Why we picked it

Oura has more independent and company-funded validation against sleep lab testing (polysomnography) than any other ring. In a 53-person sleep lab study, the Oura Gen 2 had the closest agreement on sleep stages among six popular wearables. Ring 5 is about 40% smaller than Ring 4, with up to nine days of battery life.

Best for

People who want the most studied smart ring for sleep timing, resting heart rate and HRV, worn discreetly

Not for

Anyone who wants to avoid a monthly fee, or who mainly wants detailed workout and GPS data

The details that matter.

  • • From £399 plus £69.99 a year membership
  • • Up to 9 days battery (brand claim)
  • • Strong sleep timing agreement with sleep lab tests
  • • Sleep stage estimates are approximate, as with all wearables
  • • Titanium ring, sizes 6 to 13

Specifications

form
Titanium smart ring
sizes
6 to 13
weight
2.0 to 2.7 g
battery
Up to 9 days
sensors
Optical heart rate (PPG), skin temperature, accelerometer, SpO2
price note
Premium finishes £499
subscription
£5.99/month or £69.99/year
How strong is the research? What our grades mean ›
Strong research
Independent certification or lab data for the specific claim.
Promising research
The material is well supported, but there is no product-level testing.
Early research
Little independent research.
Mixed research
Research findings disagree.
£
Under £20
££
£20 to £79
£££
£80+
How we choose ›

Part of your longer life. Related guides and swaps.

Sources

  1. t3.com
  2. ouraring.com
  3. pubmed.ncbi.nlm.nih.gov
  4. pubmed.ncbi.nlm.nih.gov