Oura sues Ultrahuman over smart ring patent infringement in U.S. market

Oura has initiated a new lawsuit against Indian startup Ultrahuman, accusing its Ring Pro smart ring of infringing two of Oura's patents, according to TechCrunch. This legal action aims to block Ultrahuman's sales of the Ring Pro in the U.S. market, where Ultrahuman recently returned following a previous import ban.

The complaint filed in a Texas federal court claims that Ultrahuman's Ring Pro infringes patents covering the ring's design, battery, and sensors. Oura is seeking monetary damages and a permanent injunction to prevent further sales of the device.

Ultrahuman's redesigned Ring Pro was allowed back into the U.S. market after a favorable ruling from U.S. Customs and Border Protection in March, following an earlier import ban on Ultrahuman's Ring Air, which was based on a prior patent infringement ruling by the International Trade Commission in 2025.

Oura stated that the new lawsuit concerns different patents than those involved in the previous dispute and emphasized its need to protect its patent rights. The company also accused Ultrahuman of copying Oura's innovations and trying to capitalize on Oura's market leadership.

The ongoing legal battle highlights the competitive and litigious environment in the smart ring market, with Oura previously bringing similar patent disputes against other rivals like Samsung and RingConn.