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The legal conflict between smart ring manufacturers Oura and Ultrahuman has escalated with a fresh lawsuit. Oura announced through a blog post on Friday that it filed a new patent infringement complaint against Ultrahuman in the US District Court for the Eastern District of Texas, alleging that the Ultrahuman Ring Pro violates its utility and design patents.
Lawsuit Details and Manufacturing Defendant
The legal complaint requests financial compensation alongside a permanent injunction to halt all US sales of the Ultrahuman ring. The court filing also includes SVTronics, a Texas-based manufacturing partner responsible for producing the Ring Pro, as a co-defendant.
History of Legal Disputes in the Smart Ring Market
This latest action follows a series of previous legal confrontations initiated by Oura. In 2023, Oura sued Ultrahuman in Texas regarding its previous model, the Ring Air. Subsequently, Oura brought a patent infringement complaint to the US International Trade Commission in March 2024 against Ultrahuman, Circular, and RingConn. Ten months afterward, Oura filed another ITC complaint involving Samsung’s Galaxy Ring, the Reebok Smart Ring, Nexxbase’s Luna Ring, and Zepp Health’s Amazfit Helio Ring.
Samsung had previously filed a preemptive lawsuit against Oura in May 2024 to block potential patent claims. By August 2025, the ITC issued a ruling finding RingConn and Ultrahuman guilty of patent infringement. While Oura successfully settled and reached patent license agreements with Circular and RingConn, the ruling resulted in a US sales ban on Ultrahuman’s Ring Air.
Following the ban, Ultrahuman developed the Ring Pro, introducing the device globally in February while waiting for clearance from US Customs and Border Protection, which was granted the following month. Oura stated that this prior customs approval did not apply to the two specific patents included in its newest lawsuit, noting that one of the design patents was granted just two days prior to the filing.
Responses from Ultrahuman and Oura
An Ultrahuman spokesperson expressed confidence in the technology behind the Ring Pro via email to CNET, confirming that the company will continue manufacturing and selling the device while the court reviews the case.
“We will address Oura’s newly asserted claims through the appropriate legal process and will defend our position vigorously,” the spokesperson stated, adding that competition and intellectual property disputes represent a natural part of developing a new technology sector without altering their business pace or ambition.
Conversely, an Oura spokesperson told CNET via email that Ultrahuman has a documented pattern of replicating Oura’s developments, pointing to the 2025 ITC decision as evidence. The spokesperson stated that although Ultrahuman created a redesigned ring, it neglected to resolve ongoing patent violations, opting instead to benefit from Oura’s market leadership and innovation.
Oura stated its intention to aggressively protect the engineering and financial investments put into its product lineup.
