[This review was collected as part of a promotion.] I was gifted this ring a bit a year ago. I was seriously considering one of Ultra Human’s competitors but a friend of mine gifted this to me and said it would change my life. I can happily say that is has. I’m sleeping better, exercising more, and eating right. The ring motivates me just enough to keep going and I can’t be without it. I was concerned about analysis paralysis and if I could sleep with the ring on my finger at night but I can gladly say that both were worries that I didn’t need to have.

[This review was collected as part of a promotion.] I wrote this as my review: Love the app for the ring. I've gained good insights into what affects my sleep for better or worse. The insights from the ring are much, much more in depth than I initially thought before I bought the ring. I had learned that while my sleep was good, my "morning alertness" was a big cause of why I felt so tired, so I've made major changes to stop checking my phone first thing in the morning and get moving instead. I knocked off one star mostly for battery life -- wish it were better. Other than that, I've stopped wearing my fitness watch in favour of the ring for its small form factor and detailed tracking.

[This review was collected as part of a promotion.] I bought the ring over a year ago. I mainly wanted to track my sleep because wearing a watch at night was not comfortable for me. The ring is very light and I got used to it right away and as a sleep tracker it is great for me. I use the ring all day and check the app regularly. It has helped me a lot to improve my habits. I like it. I can recommend it to everyone.

[This review was collected as part of a promotion.] Battery degrades prematurely. I bought hardly used second hand ring air and was offered to purchase ultrahumanX extended warranty through the app. Turns out ultrahuman warranty is non-transferable. As a customer I feel like this company does not stand behind their product and I would never buy their product. There are other well know smart ring companies that has transferrable warranty and stand behind their product.

[This review was collected as part of a promotion.] First of all, having no subscription for your device is something that made me end up with Ultrahuman. I’ve purchased the ring 3 months ago, but already had a replacement due to a faulty battery. The tracking capabilites regarding excersises and doing basic stuff like walking seems to be all over the place, while the sleep tracking and all the insights (caffein window for example) that the app gives based off of those metrics are exactly what i was looking for. The design and the sleep tracking was the inital reason i bought the device and in those areas it meets my expectations. Overall, a nice tracking device thats stylish as well (and have no distracting haptic feedback or screens!) but fitness tracking still has room for improvement.

[This review was collected as part of a promotion.] Bought it 8 months ago and enjoy the ring. It tracks all metrics I need. It is a constantly evolving product (from software side) and I’m not using all features yet. The sports are not always spot on for me. But it’s not the main selling proposition. So generally quite happy

Took a couple tries to get the right ring size. I like all of the things it shows, sleep, steps, stress, cycle tracking and heart rate. Some days I don’t feel the sleep is as accurate, but maybe I’m a worse sleeper than I thought! Overall I like it. The app is easy to use.

[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.

I’ve been wearing this for about 2 months now and I really enjoy the sleep score and period tracker! It does a really good job paired with my watch and it’s perfect for when I want to disconnect and just have the ring on. I like that it’s light and discrete. Most people just think I’m wearing jewelry until I tell them about it!

[This review was collected as part of a promotion.] With this single device, you can accurately monitor all the essential health metrics typically tracked by a smartwatch—such as calories burned, sleep analysis, blood oxygen levels, heart rate, and skin temperature. What sets the UltraHuman Ring Air apart is its ability to go one step further by offering personalized advice and tips to help you improve your daily lifestyle habits. I started using this ring around March, and since then, its features have been continuously updated. New functions like “Brain Age” and “Pulse Age” have been added. It’s a smart ring that continues to evolve every day. スマートウォッチでわかること（カロリー、睡眠分析、血中酸素濃度、心拍数、皮膚温度）など基本的なことは、これ1つで正確にデータを見ることができます。　UltraHuman Ring Airはさらに一歩踏み込み、日常の生活習慣を見直すためのアドバイスやTIPSを提案してくれる点が素晴らしいです。 このリングを使い始めたのは3月頃からですが、日々機能がアップデートされており「脳年齢」「脈拍年齢」など新たな機能が追加。日々進化し続けるスマートリングです。