The Oura Ring 5 sets the standard for sleep tracking — I’ve been wearing it for 6 weeks and its accuracy has blown me away. However, the Oura Ring 5, from $399 at Amazon, is a luxury spend and while it collects a lot of data, I mostly use it for sleep tracking. So it got me thinking: is there a way to get accurate sleep tracking data for free?
The Oura Ring is the best sleep tracker on the market, so I appreciate that a free app is unlikely to match its accuracy. But with so many iPhone apps promising precise sleep tracking through sound and movement sensors, I wanted to see if you really have to pay 100s of dollars for sleep tracking.
