Used the ring for more than a year. I'm now moving on to a different device
I bought this ring primarily for sleep tracking as it had good results in the Quantified Scientist's tests. I also liked the idea of not having to wear another watch (Fitbit) on my other hand, so I decided to make the jump.
The ring was great for sleep tracking and I was happy with it. Then came the 12th month, and the sleep tracking fell off. I'd sleep for hours but it would only get a portion of it right.
I contacted customer support (incredible service btw). They sent me a new ring, which was reassuring. It must've been a one-off. Now, after using the new one for 5 months, the sleep tracking is inaccurate once again. My sleep was registered for only 50 mins despite falling asleep at 2am and waking up at 9am.
While the ease of just wearing a ring for tracking is great, it's kind of useless to me now since I don't get the data I want from a subscription-based app. I'm now looking at other devices. It's either the Whoop band or the Fitbit strap.