Oura Files Patent Suits Against Amazfit, Reebok, and Noise

updated 19 Nov, 2025. 17:54

Oura has started yet more legal proceedings to protect its patent portfolio. This time, it filed three separate lawsuits on November 17, 2025, against Zepp Health (manufacturer of the Amazfit Helio Ring), Reebok, and Noise (seller of the Luna Ring). These actions, filed in the Eastern District of Texas, target the structural and functional design of their smart rings – more on that in a minute.

Oura is a highly successful wearable tech company, and a key pillar of that success has been protecting its market position through its patent portfolio. For example, it secured an import exclusion order from the U.S. International Trade Commission (ITC) against Ultrahuman and separately reached a licence agreement with RingConn.

More: Oura Issues Formal Comment Describing Its Action

Patents: The Core Technical Claims

The lawsuits focus on Oura’s patents related to the core engineering challenges of fitting advanced sensing and power components into the small and oddly shaped smart ring form factor. A key patent is the US Patent No. 11,868,178 (the ‘178 Patent), titled “Wearable Computing Device.”

The ‘178 Patent protects the arrangements of internal components:

• Component Integration: The placement and organisation of the battery, printed circuit board, and optical sensors inside the ring.
• Curved Power Source: A curved battery that performs adequately and retains a thin profile of the ring.

These design solutions of Oura have already been validated by prior findings from the ITC, making future successful defences easier.

Defendants and Infringement Claims

Another month. Another patent case. Or so it seems. This time around, Oura has targeted Zepp (Amazfit Helio Ring). Reebok (Smart Ring), and Noise (Luna Ring) and the allegations and basis for the cases look unsurprisingly familiar.

Oura’s Strategy: Enforcing the Smart Ring Form Factor

Oura is not quite patenting the ring, but by enforcing patents around the curved shape of the battery, it effectively stops competitors from entering the market with anything but a chunky ring with a box-like battery.

Oura is also playing a clever, long game. It is licensing its inventions to competitors, so, in the mind of the public, it is not stifling competition but defending its inventions. In the author’s opinion…Fair enough.

Future Watch: The Big Tech Factor

Oura is currently taking out and limiting smaller players.

Samsung launched its smart ring a few years ago and pre-emptively started a case against Oura to ‘prove’ its ring didn’t infringe Oura’s patents. The case was thrown out and there has been nothing since; at least not in public.

So what to watch out for is the actions of the big boys and girls in the market. If Google, Samsung and/or Apple push further into smart ring tech they will present significantly well-resourced opposition.