On Thursday (local time), Finnish smart ring brand Oura revealed that it had confidentially filed its S-1 registration statement with the U.S. Securities and Exchange Commission, formally setting the stage for its initial public offering (IPO). Established in 2015, Oura's rings are renowned for their sleek and minimalist design, setting them apart from other health wearables available in the market. These rings are capable of monitoring a wide array of health metrics, such as activity levels, sleep cycles, and daily physical and mental preparedness, and have amassed a global user base.

In September of the previous year, Oura successfully concluded its Series E funding round. By that time, its cumulative sales had soared to 5.5 million units, marking a substantial surge from the 2.5 million units sold the year before. This particular funding round secured $875 million, catapulting the company's valuation to $11 billion (approximately RMB 74.937 billion), which is more than double its previous valuation of $5 billion in 2024. Lately, Oura has also unveiled an AI model specifically tailored to women's health, demonstrating its commitment to meeting the diverse needs of its female user demographic.