Oura, the maker of the Oura Ring smart tracker, has filed for an initial public offering (IPO), revealing a period of substantial growth for the company. In the nine months concluding in June, Oura achieved revenue growth of 74% and recently became profitable, according to filings.

The company's smart ring tracks metrics such as sleep, heart rate, and body temperature, providing users with health insights. The IPO filing indicates a growing market for wearable health technology and Oura's increasing success within it.