Oura presented the Ring 5 this Thursday. The device is described as the smallest smart ring in the world. The launch comes as the Finnish-American company prepares to go public later this year.
The new ring features a more compact design and promises to maintain all the health monitoring features that made previous generations successful.
Ring 5 is 40% smaller than the previous model
The Ring 5 measures just 2.28 millimeters thick. The total volume is 40% smaller compared to the Ring 4. Essa reduction makes the device even more discreet, similar to an ordinary piece of jewelry.
The company highlights that the small size facilitates daily use for those with smaller fingers or who prefer subtle accessories. The ring continues with a titanium structure and varied color and finishing options.
Updated Sensores works on different skin tones and finger sizes. The battery has also improved. Usuários should get more days of use without recharging.
- Design 40% smaller than Ring 4
- 2.28mm Espessura
- Monitoramento for sleep, stress, readiness and heart health
- Preço starts at $399
- Assinatura $5.99 monthly for full features
The launch is scheduled for June 4th. Pre-sales are now open.
Crescimento from Oura in the wearables market
Oura was founded in 2013 in the city of Oulu, in Finlândia. Três engineers who worked on Nokia and Polar started the project. Hoje the company maintains headquarters in Estados Unidos and Europa, with more than 1,200 employees.
Desde the first model, launched via Kickstarter in 2015, the company sold 5.5 million rings in 150 countries. Revenue reached US$1 billion in 2025. Oura has around 5 million paying subscribers.
The smart ring market has grown rapidly. In 2025, around 4 million devices of this type were shipped, according to analyst data. Ainda is a small segment close to the 175 million smartwatches sold in the same period, but it is gaining ground among those looking for a less invasive option.
Oura’s ring attracts a variety of audiences. Homens and women buy in similar proportions. Celebridades like Jennifer Aniston, Gwyneth Paltrow and Kim Kardashian have already used previous versions.
Recursos health and news from Ring 5
The main focus remains on sleep as the basis for health monitoring. The Ring 5 measures rest quality, stress levels, daily readiness and cardiac data.
Novos software features arrive alongside the hardware. Health Radar warns you of potential problems before they become serious, such as variations in blood pressure or interruptions in breathing during sleep.
Outra tool helps users of GLP-1 medications, used for weight control. The system records effects and dosages over time.
The in-app experience receives constant updates. Mensagens clear metrics help the user understand the data.
The ring is water resistant up to 100 meters. Ele records physical activities in real time and integrates with various health and wellness services.
Parcerias and presence in sport
Oura has signed more than 1,200 partnerships. Times and football federations, Olympic committees and events like US Open use the technology to track athletes.
No Reino Unido, the football association worked with the company during Euro 2024. The Finnish national team and the American football league have also adopted the device.
Essas collaborations show how the ring has moved from the individual consumer niche to the professional environment. Recovery Dados helps coaches manage training load.
Caminho to IPO
Oura submitted a confidential request for an IPO in Comissão of Valores Mobiliários of Estados Unidos. The listing should take place in 2026.
The latest round of investment valued the company at US$11 billion. Bancos as well as Goldman Sachs, Morgan Stanley, JPMorgan Chase, Allen & Co and Jefferies advise the process.
The business model combines hardware sales with a monthly subscription. The retention rate after the first year is 80%. Usuários wear the ring an average of 23.5 hours a day.
What changes for the consumer
The Ring 5 seeks to attract those who avoided bulkier versions. The slim design makes it easy to use continuously without attracting attention.
Quem already has previous rings from the brand can count on the new software functions. The company says the Ring 5 is its most capable model yet.
Pricing starts at $399. A $5.99 per month subscription unlocks full access to insights and updates.
The launch reinforces Oura’s position as a leader in the smart rings segment. The company continues to invest in research and development at Finlândia while expanding operations at Estados Unidos.