[This review was collected as part of a promotion.] Excellent product The Ultrahuman Ring Air collects various metrics related to sleep, movement, and recovery, including heart rate, heart rate variability (HRV), body temperature, SPO2 (blood oxygen saturation), sleep stages, and movement frequency. It uses sensors like a PPG sensor, a 6-axis motion sensor, and a non-contact temperature sensor to capture these signals.

[This review was collected as part of a promotion.] My Ultrahuman Air ring has been my 24/7 every-day companion for everything health – from giving me insights into my sleep, optimal caffeine intake, or social jetlag, to exercise, aging rate, and a ton of other data that helps provide me with insights that enable me to maximize my everyday life. And with regular (sometimes weekly!) software updates thanks to the Ultrahuman team, my experience only gets better and better!

[This review was collected as part of a promotion.] I bought the ring back in May on a whim and now I am OBSESSED! I love to use it to track my sleep and learning overall how to have a better night of sleep. It is so light and holds a charge well! I only have to charge my ring every 3-4 days!

[This review was collected as part of a promotion.] I’ve been using the Ultrahuman Ring AIR for the past few weeks, and it’s really shifted how I look at recovery and staying focused. I’ve started noticing patterns in how I sleep and move through the day, and it’s helped me make a few small changes that actually stick. The recovery score, in particular, makes a lot of sense to me—I find myself checking it before I even start the day. Kind of wild how something this small can be so useful.

[This review was collected as part of a promotion.] Works great. Let's me know when to go to sleep and when to drink coffee😏 Keeps track of steps walked. Let's you know how long you were in each stage of sleep. Deep, rem, light. Provides all health stats and tells you how to improve them.

Absolutely loving my Ultrahuman Ring Air! It’s so light I often forget I’m even wearing it—even overnight. The design is sleek and minimal, and mine in black still looks brand new after weeks of use. The sleep tracking is incredibly detailed and much more comfortable than strapping on a smartwatch every night.

[This review was collected as part of a promotion.] I got this as a gift 3 months ago and it works perfectly! I use it primarily for tracking my sleep and workouts to get an overview of my progress. The one feature I use the most (and is also the reason I got interested in the product) is the caffeine measurement. My sleep has gotten way better after limiting the caffeine consumption in regards to what the app says. Also a thing to note is that i got the ring with titanium coating and I'm surprisingly amazed of how little the scratches are visible on the ring after 3 months use. Overall a great product!

[This review was collected as part of a promotion.] I've been using the Ultrahuman Ring Air for the past few weeks, and it has quickly become an essential part of my daily routine. This sleek, lightweight wearable packs a serious punch when it comes to health tracking, offering a perfect blend of performance insights, recovery metrics, and personalized recommendations. Design & Comfort: First off, the design is stunning — minimalistic, elegant, and discreet. Unlike bulkier smartwatches, the Ring Air feels virtually weightless and looks great with any outfit. I often forget I’m even wearing it, which is a testament to its comfort. Metrics & Accuracy: The data accuracy has been impressive. From HRV and sleep cycles to movement and skin temperature, the insights feel both comprehensive and reliable. The sleep tracking is especially detailed, helping me pinpoint areas to improve my rest and recovery. App Experience: The Ultrahuman app is intuitive and thoughtfully designed. It doesn’t just throw numbers at you; it contextualizes them with actionable suggestions and clear visualizations. I particularly like how it integrates metabolic and circadian insights to help optimize performance and recovery. Battery Life: The battery life is stellar — I’ve been getting 5–6 days on a single charge, and the charging case is compact and easy to carry. Conclusion: If you're serious about your health, sleep, and performance, the Ultrahuman Ring Air is absolutely worth the investment. It's not just a fitness tracker — it’s a powerful tool for anyone looking to live smarter and optimize their everyday well-being. Highly recommended!

[This review was collected as part of a promotion.] The battery needs to be charged more often than expected unless I turn it down to only track the minimal (sleep etc). Maybe it being in the sauna drains the battery or when I used to click a functional workout real time maybe that is also draining the battery. Lastly, I have the silver, and there are lots of hairline scratches on it and it feels like plastic on top. Maybe there can be other cooler finishes like textured to help disguise the scratch potential? Otherwise cool and lots of info and options.

[This review was collected as part of a promotion.] I bought this a month ago. I'm happy with some things but disappointed with the workout data received. I gave up my smartwatch and bought this ring. But, there has been major glitches in data accuracy. I worked out for 60 mins and it showed 54 calories burnt. I mean how strange is that?