Daniel Cooper is Engadget’s roving reporter, tackling the topics both big and small that shape our world. He has been writing about the future for more than 25 years, and abandoned a promising career as an intellectual property lawyer to join Engadget in 2011.
Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission.on the map, is ready to show off its fourth-generation Ring . The new model gets a sleeker design, longer battery life and smarter sensors producing even smarter insights for wearers.
The biggest change made to the Ring 4 is in the sensors, which were previously housed in raised bumps that kept contact with your finger. Now, the sensors are flush with the body, making the whole thing a lot smoother and sleeker than it was before. And while I haven’t seen it in the flesh yet, the press images seem to suggest it’s a decent chunk thinner than its predecessors.
Those sensor improvements aren’t just focused on making them smaller, but also improving their ability to peer into our bodies. Oura says Ring 4 has 18 distinct signal pathways, up from eight in the Gen3, which is paired with its new “Smart Sensing” algorithm. The ring will automatically optimize which of those 18 pathways to use to maintain a constant reading, given how much jewelry moves around through the day.
This is a real issue for some Oura users, because if the ring shifts around too much, you’ll get inconsistent readings. The company claims that the new hardware offers a 30 percent increase in blood oxygen sensing, 31 percent fewer gaps in nighttime heart rate and seven percent fewer gaps during the day. Oura hasn’t said what battery size the Ring 4 has, but says the above tweaks should help it get up to eight days of life on a single charge.
The company is also redesigning its mobile app to group all of the data it collects about you into three distinct categories: Today, Vitals and My Health. The first two of those help you explore your vital signs for the day in aggregate or in detail. My Health, meanwhile, will offer longer-term insights including your cardiovascular age, cardio capacity, stress and sleep. This will start rolling out today for all users, regardless of which generation of ring they own.
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