Samsung Electronics has filed a preemptive lawsuit against Oura to block potential patent claims related to smart rings. The legal action comes ahead of the anticipated launch of Samsung's Galaxy Ring. Oura has a history of being litigious towards other smart ring manufacturers, prompting Samsung to take this proactive measure. The lawsuit aims to prevent Oura from filing any patent claims that could potentially delay or disrupt the launch of the Galaxy Ring. Competition in the smart ring market is heating up, as noted by Allison Johnson.