I bought a ring, and given it did not show the workout stats I was hoping for, I wrote them. They gave me a long answer like what they have on the website and never mentioned in 2 months they would release an upgrade with all the features I was asking about. Now they released Gen3 and want an extra 314 Euros for me to get it (on top of the 314 I already paid!), offering free lifetime membership. I emailed customer service twice and TWICE got a standard email reply answering about how to buy the new ring! It is appalling how little they care for new customers and the non-existing customer service. Other start-ups (see the NOWATCH) are doing a much better job, so stay away from Oura.
Pros and Cons:
Bottom Line: No, I would not recommend this to a friend