Ultrahuman Sues Oura Over Alleged Smart Ring Patent Infringement

Healthtech major Ultrahuman has filed a patent infringement case against Finland-based smart ring maker Oura Health Oy and its US unit Ouraring Inc in the Delhi High Court.

In its petition, Ultrahuman has alleged that Oura’s latest device, Ring 4, uses the former’s architecture and features without authorisation.

The said patent pertains to a layered ring structure (with sensors for heart rate, temperature, and motion) and a microcontroller for processing data related to sleep stages and readiness scores.

The Bengaluru-based company has also alleged that Oura copied its innovations, including women’s health features and circadian health tools, and placed these offerings behind a paywall.

Responding to the lawsuit, an Oura spokesperson said that Ultrahuman’s lawsuit in India has no merit and is a “blatant attempt to distract from their decisive US defeat”.

“The International Trade Commission (ITC) ruled unequivocally that Ultrahuman infringed on Oura’s intellectual property, blocking all of their smart rings – and components – from the US market through exclusion and cease-and-desist orders. This ruling validates not only the strength of Oura’s patents, but also our long-term IP strategy. We’ve now established, at the most rigorous levels of review, that ŌURA’s patents are valid and enforceable – (a) precedent that will shape the future of this category. The facts are clear: Oura innovates, Ultrahuman imitates,” the spokesperson added.

The legal action in India comes even as Ultrahuman is fighting a legal case with Oura in the US. Earlier this year, Oura won a preliminary ruling at the US ITC, which found that Ultrahuman’s Ring Air violated several of Oura’s design and utility patents.

If upheld at the final ruling, expected in November 2025, Ultrahuman could face a ban on importing its smart rings into the US. The North American country is its largest market and contributes nearly half of its revenue.

Meanwhile, Ultrahuman has tried to mitigate this risk by highlighting its Texas facility, which it claims can manufacture smart rings locally.

Founded in 2019 by former Zomato executives Mohit Kumar and Vatsal Singhal, Ultrahuman makes wearable devices such as the Ring Air, the M1 continuous glucose monitor, and the Blood Vision biomarker platform.

It also operates in the smart home category with Ultrahuman Home, a device that tracks indoor health environments. Recently, Ultrahuman acquired women’s health technology company viO HealthTech to launch advanced cycle and ovulation tracking.

Despite the ongoing legal battles, Ultrahuman reported strong growth in FY25. The company claims that Its revenue surged nearly 6X to INR 600 Cr from INR 104 Cr FY24.

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