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One of my biggest pet peeves about the Oura ring platform is getting some temporary relief, thanks to Amazon’s spring sale . Chargers for the gen 4 ring (the newest model) are available for $35.40 today , so you can pick up a spare for close to half the usual price.
And, yep, the usual price for an Oura charger is a whopping 59 bucks. The old gen 3 chargers don’t fit the new gen 4 rings, and the chargers are also sized: If you have a size 8 ring, you need a size 8 charger. And there aren’t third-party chargers for the gen 4 rings, so the official Oura ones are your only option. Hence my griping about the price.
But now, at $35.40? That’s still not cheap, but it’s a lot better than full price. Your ring will have come with one charger, but it’s handy to have a spare so you can keep one at your work desk and one on your nightstand, or to keep an extra in your travel drawer . The Oura ring lasts most of a week on each charge—up to eight days, according to the company, although I found I only got about five days between charges with blood oxygen sensing turned on. That also accounts for charging the ring when it falls to 20% battery, which is the app’s recommendation to be sure it won’t run out of juice while you sleep.
The fourth generation Oura ring has a good reason for not fitting the old chargers, by the way—the old rings had three sensor bumps on the inside, where the gen 4 has finally managed to fit its technology into a smooth interior that fits like a normal ring. So the ring is a different shape on the interior, and the sizing has also changed. For more on the differences between the gen 3 and gen 4 Oura rings, I have a detailed comparison here . I’ve also worn three different generations of the ring over the past four years, and I wrote a retrospective here with all my thoughts on how I’ve used my ring over the years, and where it has and hasn’t lived up to my expectations.
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