Smart ring manufacturer Oura has officially submitted its IPO application. The company filed documents with the U.S. Securities and Exchange Commission (SEC) on Thursday, showing that Oura's revenue increased from $697 million to $1.2 billion over the past nine months ending June 30. The company previously projected revenue of about $500 million in 2024, $1 billion in 2025, and nearly $2 billion in 2026.

As of now, Oura has sold approximately 3.6 million smart rings in the past year, with around 5 million paid members, and a 12-month weighted average member retention rate of about 85%. Oura rings are priced between $350 and $400, covering physiological indicators such as heart rate, metabolism, stress, and sleep, and provide continuous health monitoring services through its companion app.

Oura was founded in Finland in 2013 and submitted a confidential IPO application in May this year. Earlier market reports indicated that the company planned to raise about 3 billion dollars through the IPO, with a potential valuation reaching 16 billion dollars; the company's valuation was approximately 11 billion dollars in October 2025.

Oura stated that it will expand from traditional activity and fitness tracking to broader healthcare scenarios, and deepen cooperation with insurance companies, employers, and healthcare providers. The company disclosed that it has accumulated more than 50 health indicators and nearly 4.2 billion hours of physiological data, and will use these longitudinal data to train AI and machine learning models to enhance health pattern recognition, personalization, and predictive capabilities.

Meanwhile, Oura is facing a proposed class-action lawsuit alleging that it misled consumers regarding the accuracy of its sleep tracking. Oura denies the allegations and states it will defend itself through legal means. This IPO will serve as an important window for observing the evolution of smart wearables from hardware sales to a "hardware + subscription + AI health service" model.