Samsung has a ring. Apple is rumoured to have one. Finland's Oura just filed for IPO and made its smart ring 40% smaller — TFN

Finnish healthtech Oura has launched Ring 5, the world’s smallest smart ring, 40% smaller than its predecessor backed by $1.5B+ in total funding and a confidential IPO filing with the SEC.

The launch pairs new hardware with a major software expansion including blood pressure monitoring during sleep, nighttime breathing analysis, GLP-1 medication tracking, and AI-enabled on-demand medical care.

Samsung’s Galaxy Ring 2 is delayed, Apple has no confirmed ring in development, and most of Oura’s smaller rivals have been banned from the US market – leaving Oura as the category’s unchallenged leader.

Smart ring season started with a crowd. And is it ending with one winner and it is not American?

Founded in Finland in 2013 and now headquartered in San Francisco, with its European headquarters in Oulu, Finland, Oura recently announced Ring 5, the world’s smallest smart ring, 40% smaller than Ring 4, crafted from lightweight non-allergenic titanium, starting at $399 for base finishes and $499 for premium, shipping June 4. The launch arrives the same week the company confidentially filed a draft IPO prospectus with the SEC, as per reports.