[This review was collected as part of a promotion.] It is an efficient measurement device that helps us track our rest and activities to provide information for improving the areas that need improvement. It is also very small and light, so it is not a burden to wear.

[This review was collected as part of a promotion.] After having the ring for a couple months, I've enjoyed seeing the information presented for my health. The data is presented in a clear manner and gives some assistance on improvement when necessary. My only negative is the battery. Initially, the battery was lasting a out 5 days between charges. Recently, it has been an every other day requirement. This isn't a major problem and become just another routine activity to plan in my day/evening.

[This review was collected as part of a promotion.] Bought the ring around a month ago, as I want to do HRV and sleep tracking. Unfortunately, the HRV metrics are not available first thing in the morning. The insights I am getting are not really new to me, as I have a Garmin Fenix with a lot of similar features. Activity detection (without the phone) is not great - a lot of my workouts are not being picked up, despite my HR rising significantly / movement is involved. Maybe should've gotten a whoop instead. Ring looks quite nice, but scratched fast.

[This review was collected as part of a promotion.] I bought my ring approx. 2 months ago. Pros: I really like the design, it's pretty nice and comfy. The user interface is good enough, I can find everything I want easily. The extensions aka. powerplugs are great additions, not to mention most of them are free of charge. My favorite is the circadian rythm tracker, and the smart alarm is also very useful. Built-in breathworks are nice, also free. Exercise tracking is I think as good as you can expect from a ring, plus there are lots of built-in training types. Sleep metrics I cannot compare with other devices or measurements, so I have to rely on what I see in the app, but I feel like they are rather accurate, at least the quantities for sure. Cons: I really wanted to like this ring and I am liking it, but I have to be honest: sadly I'm currently waiting on my third replacement ring. The first stopped charging after a few weeks, the second had a similar problem, but then after a day of trying it did charge up, but then the sleep metrics were gone. The latter was probably a software issue since the metrics during a breathwork session worked, and the sensor diagnosis stated that everything is fine. Regardless of what the actual problem was, it couldn't be used like that. Both lasted for a month, roughly. I only can hope that I will be luckier with the third. If it is really just about luck..

I was considering between 2 rings but decided to buy the Ultrahuman Ring AIR and it has been amazing. Helped me a lot with sleep - which I was not aware of since I am not comfortable with wearing my Apple Watch while sleeping. I hope this ring would last for a long time. Thank you Ultrahuman Team!

[This review was collected as part of a promotion.] I bought my ring 3 months ago so I can say - it meet my expectations. I have the clear information about my sleep moreover there's a lot more comfortable to sleep than with watches. The ring provides useful tips throughout the day.

[This review was collected as part of a promotion.] The Ultrahuman Ring Air is an impressive concept with solid potential, but its accuracy varies depending on what you’re tracking. Here’s my experience: What It Gets Right: • Resting Heart Rate: Very close to my Apple Watch readings, which is reassuring. • Sleep Temperature: Reliable for tracking temperature shifts during the night. Where It Struggles: • Sleep Tracking: Sleep duration and stages feel inconsistent. I can wake multiple times in a night, yet the ring reports a full 7 hours. It’s better for spotting overall trends rather than precise sleep scoring. Other Highlights: • No Mandatory Subscription: A big plus compared to many competitors. There’s a fee for deeper insights, but core data is accessible without ongoing costs. • App Insights: The guidance on recovery and health trends is practical and helpful. • Comfort: Lightweight and comfortable; I hardly notice I’m wearing it. Bottom Line: This ring is a great tool for trend tracking and recovery insights, especially if you want a screen-free experience without a subscription. Just know it’s not perfect yet for detailed sleep or workout tracking. The good news? The company is actively improving the product, so accuracy may get better over time.

[This review was collected as part of a promotion.] I have enjoyed using the Ultrahuman ring. The sleep tracking works well. I like that they continue to add functionality and improved the battery life with new modes. I wish I could use this to track my heart rate when I exercise but does not seem to be able to capture that accurately. Lastly tends to accumulate a fair amount of scratches that don’t seem to heal as advertised. Love that there are no subscription fees.

[This review was collected as part of a promotion.] I got the Ultrahuman ring air for my birthday in April! I have loved this ring so far! The insight on my health has been so helpful and encouraging. The app lays out everything in an easy way to understand. The only frustration I have had is that the ring scratches pretty easily and doesn’t connect with natural cycles app. Other than that I have been completely satisfied!

- - : Autonomy / The sport activity apps could be more friendly and usefull. for example the "3 2 1" timer is really not necessary for me / the ring shape could be thiner + + : the ring make you think about yourself more frequently, it allows yourself to have a really good focus on simple things like sleep schedules or coffee time. Also, after a lung issue, the oxygenation % is reassuring even if not 100% accurate.