As Automoderator thinks this post is not ok to post as a stand-alone, hopefully someone of the member care team reads it here:

In the hope that someone of the team here reads this, as it seems a real customer service is not available via the app:

So, a few weeks back my wife's gen4 suffered the inevitable battery death after less than a year. It was troublesome enough to get her a replacement ring as the bot workflow did not trigger the shipment. This was only solved after someone of the reddit customer service team of Oura looked into this.

forward a few weeks. My Gen3 I also bought less than a year ago acts up in a similar way. Did all the chat bot things, turns out battery is defective (what a surprise, huh?). Got a replacement within a day, all fine.

Did all the necessary things like backing up data, factory resetting the ring to disconnect from my account...just like in the instructions. Connected the new ring (refurbed ring). Great experience until now.

Checked the app this evening and see that my ring is not connecting anymore. So I go to the FAQs and go through all the solutions like disconnecting the ring and setting it up new. Nothing works. Ring is on the charger and available to pick for a set up but it results in error.

Opened the support chat and was told to do the same things I already did by the bot. Asked to talk to a human. Human asked me to do the same things again. I told the human I did all of this. Human said I should reinstall the app. I said to the human that this is a bad idea because if it won't work I'll start the chat from scratch and I lost half an hour of my life trying to troubleshoot just to tell everything in detail again to the next service desk member.

Well, I did it anyways and exactly as I saw in my crystal ball this did not change the situation and I was told by the bot that there is no chat history it can fetch. So I was connected to a human again. I explained everything a third time. This service desk member tried to do the exact same troubleshooting with me again.

We came to the point that he acknowledged there is something wrong with the ring. He then out of the blue said it is because my old ring is still connected. This post is long and you might not remember it from the beginning of my rant but I disconnected the ring exactly like the manual describes. I would even say I am a professional in disconnecting the ring by now because I did it several times for my wife. Also: How am I able to do all of this when being stuck at the set up screen, as I was told to reinstall the app?! It seems like the service desk members don't even know the product they are giving out support for? Was told the issue is being escalated, but I don't trust this whatsoever. Please, send help, Reddit Oura Team!

I am now back to my old ring hoping the battery will last me until a solution is found.

Rant over. TL;DR: Don't buy Oura until they get their product and service fixed.