Oura Files New Lawsuit Against Ultrahuman Over Smart Ring Patent Infringement

Oura has filed another lawsuit against Bengaluru-based rival Ultrahuman, seeking to stop US sales of the redesigned Ring Pro smart ring. The lawsuit threatens Ultrahuman's return to the US market just months after the redesign enabled that return following an import ban. Oura filed the complaint Thursday in federal court in Texas. Oura alleges that the Ring Pro infringes two patents concerning the ring's design and internal parts, including the battery and sensors. Oura seeks damages and a permanent injunction barring Ultrahuman from selling the ring.

Ultrahuman launched the redesigned Ring Pro in February. US Customs and Border Protection issued a favorable ruling in March, enabling Ultrahuman to resume sales in the United States. The earlier Ring Air became subject to an import ban after Oura won a patent infringement ruling from the International Trade Commission in August last year.

An Oura spokesperson accused Ultrahuman of repeatedly copying Oura's innovations and cited the 2025 ITC ruling as evidence. The spokesperson alleged that Ultrahuman's redesign continued to infringe Oura's patents and sought to exploit Oura's innovation and market leadership. Oura argues that the Customs decision addressed only the patent in the previous dispute, rather than patents D804,471 and 12,769,363 cited in the new lawsuit. Oura's filing says the company must bring the infringement complaint to defend Oura's patent rights.

Oura received patent 12,769,363 on October 20, two days before filing the lawsuit. The patent concerns a smart-ring design containing a curved battery, a circuit board, magnets and sensors. Oura also named Texas electronics manufacturer SVTronics as a defendant. The complaint alleges that SVTronics makes the Ring Pro in Plano, Texas, under Ultrahuman's direction and control. The complaint accuses both defendants of infringing Oura's patents by making, importing and selling the device in the United States.

Oura first sued Ultrahuman in 2023 over the Ring Air, a product that helped establish Ultrahuman in the US market. Oura initiated a separate ITC proceeding in 2024 that contributed to last year's ruling and the subsequent Ring Air import ban. Oura has also brought patent infringement claims against Samsung, RingConn, Circular and Zepp Health. Some disputes have produced licensing agreements. RingConn and Circular agreed to pay Oura royalties so that RingConn and Circular could keep selling products.

IDC forecasts that worldwide smart-ring shipments will increase 12.8% this year to 4.9 million units. IDC expects shipments to reach about 6.3 million units by 2030. Oura remains a leading smart-ring maker, while Ultrahuman is among the competitors expanding in the category.

Oura abandoned a $2.2 billion initial public offering just weeks before the lawsuit, citing market uncertainty. Oura introduced fitness metrics earlier this week to help users assess how exercise affects cardiovascular health. Ultrahuman raised $70 million in September from investors including Qualcomm Ventures and Labcorp. The funding valued Ultrahuman at about $365 million. Ultrahuman is collaborating with Qualcomm on a smart ring that could execute more software on the device itself. Ultrahuman aims to move beyond health and fitness monitoring into uses including AI interactions and gaming. Ultrahuman did not answer a request for comment.