The smart ring leader alleges that Ultrahuman’s customs clearance doesn't cover its newest patents
Oura has filed a new patent infringement lawsuit against smart ring rival Ultrahuman, seeking monetary damages and a permanent injunction to block US sales of the brand's Ring Pro.
Filed in a Texas federal court, the complaint alleges that Ultrahuman’s Ring Pro infringes two of Oura’s patents—'D804,471' and '12,769,363'—covering the physical design and internal component layout of the ring, including its curved battery, circuit board, magnets, and optical sensor setup.
Notably, patent '12,769,363' was granted to Oura on October 20, just two days before the suit was initiated.
The filing also names Texas-based electronics manufacturer SVTronics as a co-defendant, alleging that it manufactures the Ring Pro in Plano, Texas, under Ultrahuman's direction.
A swift follow-up to previous ITC import ban
The lawsuit marks the latest escalation in a legal battle that dates back to 2023. After a 2025 International Trade Commission (ITC) ruling in Oura's favor, the ITC imposed an import ban on Ultrahuman's original Ring Air.
Ultrahuman subsequently redesigned the device into the Ring Pro—as we discussed in detail with CEO Mohit Kumar earlier this year—and obtained a favorable clearance ruling from US Customs and Border Protection in March, allowing it to resume sales in the US.
However, Oura argues that the Customs clearance applied strictly to the single patent involved in the prior ITC dispute, not the two patents cited in its fresh court action.
“Ultrahuman has a history of copying Oura’s innovations, as demonstrated by the 2025 ITC ruling against the company,” an Oura spokesperson said in a statement.
“Ultrahuman introduced a redesigned ring but failed to address continued infringement of Oura’s patents, seeking instead to capitalize on our innovation and the market leadership we have built.”
Ultrahuman vows to fight; Oura continues to defend
Ultrahuman co-founder and CEO Mohit Kumar confirmed to Wareable the startup intends to defend its position, emphasizing that no injunction is currently in place.
“Oura has now chosen to assert different patents, including one that was issued just two days before this lawsuit was filed,” Kumar said.
“We will address these claims through the appropriate legal process and will defend our position vigorously. There is no court order affecting Ring Pro, and it remains available to customers in the US.”
The litigation follows Oura's years-long legal campaign across the category, having previously targeted Samsung, RingConn, Circular, and Zepp Health—with players like RingConn and Circular ultimately settling through licensing and royalty agreements.
The legal pressure also arrives during a period of rapid industry consolidation and expansion, following Ultrahuman's recent $70 million funding round and Oura’s decision to postpone its planned $2.2 billion IPO.
We're sure there will be plenty more updates on this one over the coming months, so stay tuned for more.
