Oura Sues Over Ring Pro Design, Parts

Oura wants a Texas federal court to pull Ultrahuman's Ring Pro off shelves in the United States. The complaint asks for damages and an injunction against sales of the wearable. Ultrahuman said the Ring Pro remains on sale in the US and that it will contest the action.

The suit names two patents. One of them, Patent 12,769,363, was granted on Oct. 21, two days before the complaint was filed. It covers a smart ring design with a housing, a battery and specific internal components. Oura said in a blog post that the Ring Pro infringes both patents.

Oura is based in Finland. Ultrahuman is based in India. The Ring Pro sold in the US is assembled at a plant in Plano, Texas, by SVTronics under Ultrahuman's direction, and Oura named SVTronics as a defendant.

The fight started last year. Oura won its case against Ultrahuman, and the US International Trade Commission found that the Ring Air violated several Oura patents. That ruling blocked US sales of the Ring Air, which remains on sale in Europe and other markets. Ultrahuman then redesigned the Ring Pro to avoid Oura's patents in the American market, and US Customs and Border Protection approved the redesign earlier this year.

Oura disputes the redesign's legality. "After it was found to be infringing Oura patents, Ultrahuman recently introduced a modified version of its ring, claiming its redesign no longer infringed our patents. That claim is false," the company wrote, adding that the new ring "still incorporates many of Oura's patented innovations and continues to infringe our intellectual property."

A spokesperson for Ultrahuman said the redesign "has already been through independent review in the United States" and that Customs and Border Protection concluded in an earlier proceeding that the Ring Pro did not infringe the patent then under review. The spokesperson said Oura "has now chosen to assert different patents, including one that issued just two days before this lawsuit was filed," and that the company would "defend our position vigorously."

Oura is also in a patent dispute with Samsung that began in 2024, when Samsung sued Oura first over concerns about the Galaxy Ring. The two companies were still in that dispute as of this summer. Oura also announced a partnership with the US military that uses a Palantir hosting environment.