Why the Oura Ring 4 is still the best smart ring on the market - and I've tested dozens of them

ZDNET's key takeaways The Oura Ring 4, the newest generation of the popular smart ring is now available to buy and starts at $350. The Oura Ring 4 emphasizes a comfortable build with flatter and smarter sensors, more sizes, upgraded software, and an alleged eight-day battery life. The eight-day battery life is actually more like five and a half days. $398.84 at Amazon $399 at Best Buy more buying choices While Oura was quiet these past few years, in between the release of its Ring 3 in 2021 and the development of its Ring 4 (now available), a groundswell of competitors released smart rings of their own, from big-name brands like Samsung to indie upstarts like Ultrahuman and RingConn. Also: Oura's CEO wants its smart ring to be the doctor in your pocket The smart ring space is heating up, and we have officially reached peak health tracker. During the past few years, Oura has been busy developing a smart ring that's smarter and stronger than the rest: the recently unveiled Oura Ring ... Read full article.