Oura, the maker of a finger-worn health tracker, has filed to go public. The company said its business showed significant revenue growth over the past year. The step would place a well-known smart-ring brand onto the public markets.
Oura's device is a ring that records sleep, activity, and other physiological signals and sends them to a companion app. It has no large display and is designed to be worn through the night with less bulk than a watch. The firm sells the hardware together with software that interprets the readings for consumers.
Wrist-worn gadgets from large electronics and athletic brands still dominate the wearable category. Rings remain a smaller slice of that market, aimed at buyers who want continuous tracking without a watch face. That form factor has been Oura's main point of distinction as other companies also test similar devices.
A public listing would put Oura's hardware sales and any recurring membership revenue under closer investor scrutiny.
A listing would require fuller disclosure of unit economics, margins, and the mix between one-time hardware sales and any subscriptions tied to the app. Investors in consumer devices typically watch replacement cycles and whether software revenue can offset the cost of building and shipping rings. Those figures were not included in the initial account of the filing.
The report of the paperwork did not specify an exchange, a share total, or a valuation range. Those items usually appear as regulators review the documents and underwriters prepare the offering. Until then, the filing itself is the clearest signal that Oura intends to list.



