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Oura and Ultrahuman, two of the biggest names in smart rings, are going head-to-head. I tested the Oura Ring 4 against to see which one actually provides the best health tracking experience, Ultrahuman Ring Air. In terms of smart rings in 2025, Oura and Ultrahuman are the most commonly used names. The Ultrahuman Ring Air has been on the market since the middle of 2023, but it has only just begun to be sold in some markets this year. Oura’s fourth-generation ring was released at the end of 2024.
Because they are both so sleek, packed with sensors, and serious about health data, they have been dubbed the “Apple Watches of smart rings.” However, in the Oura Ring 4 versus Ultrahuman Ring Air, which one’s actually worth your money—and your daily wear? To find out, I looked at the specifications, features, and user experiences. I always consider the long term as a tech editor who has reviewed thousands of gadgets over the past five years. Price is important, but so is whether or not a product fits your lifestyle. Whether or not you subscribe, I suggest the one I think the majority of people will enjoy using and keep using. But I’m going to tell you right now that one of them definitely made me feel better. My perspective on Oura Ring 4 versus Air in an Ultrahuman Form.
Oura Ring 4 vs. Ultrahuman Ring Air: Price & Availability
Price matters, as any tech editor will tell you. In order to cater to all potential customers, from billionaires to the average consumer, products are produced in price tiers. Here, let’s compare the Ultrahuman Ring Air to the Oura Ring 4. Do they really differ that much? Without its membership fee, the Oura Ring 4 is currently the same price as the Ultrahuman Ring, $349. However, the Ultrahuman Ring Air is a one-time purchase. There are no extra fees for those awesome health features. The Oura Ring 4 membership program costs $69.99 per year, or $5.99 per month. Therefore, the Oura Ring 4 will cost you $408.99 in total for one year of wear. If you wear the ring for another 3 years (what I would call average use), your total increases to $618.96—and that’s if Oura doesn’t increase its prices during that time (it probably will).
My conclusion is that Ultrahuman Ring Air comes out on top. In terms of affordability, the Ultrahuman Ring Air reigns supreme. $349 is a steal compared to the approximate $619 you’ll spend on the Oura 4, for 4 years of use.
Oura Ring 4 vs. Health and Fitness Tracking with the Ultrahuman Ring Air
No one buys a smart ring for more than $300 just to wear it as tech jewelry. The real reason you want a smart ring is data—good, useful, obsess-over-it-daily data. So which smart ring, the Oura Ring 4 or Ultrahuman Ring Air, best helps you understand your health?
The basics are well covered in both rings. You can keep track of your heart rate, skin temperature, oxygen levels in your blood, sleep stages, and menstrual cycle in real time. Either ring can direct you in the right direction if you want to improve your recovery or just understand why you felt off this morning. However, in terms of how it handles that data, Oura appears to be more refined and individualized. It auto-detects workouts (and even separates overlapping activities, like a walk around the neighborhood followed by a HIIT session) and logs heart rate zones. The Oura app’s layout is simple, easy to use, and adapts to your body’s changing needs.
Additionally, I like that Oura can be integrated with Natural Cycles for more in-depth tracking of my menstrual cycle. In a good way, Ultrahuman is more experimental. It has a unique feature called the Stimulant Permissible Window that tells you when to stop drinking caffeine based on your circadian rhythm. The ring also dives into light exposure, metabolism, and glucose optimization (get even more insights when you pair it with the Ultrahuman M1 glucose tracker).
However, Ultrahuman makes a mistake here: the app experience can be confusing. While the data is there—and plentiful—the way it’s presented takes some getting used to. Some users love the science-y feel. Others (like me) would rather not spend 20 minutes Googling “Phase Response Curve” just to make sense of their morning dashboard.
Also, Oura lets you download your health data. This is super practical if you’re working with a coach or doctor. Ultrahuman does not (yet), which in 2025 seems a little out of date.