I bought my ring secondhand but brand new. The person I bought it from told me that they sent their original ring back because the battery life significantly dropped after just over a month of use. Ultrahuman sent her a brand new ring which I then bought from her - and I've had the same experience. The battery used to last several days and now it maybe lasts a day and a half. I've only had it for a few months. Battery life aside, I do enjoy exploring the information provided, particularly my sleep scores, cycle, and movement throughout the day.

[This review was collected as part of a promotion.] I’ve been wearing my Ultrahuman ring for about two months now, and it’s ok. I don’t get very accurate heart rate data when working out. I tend to wear my Apple Watch for workouts, spin class and walks or runs which defeated the purpose of my purchase. It is comfortable and I like the look of it.

[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.

The ring itself looks good and is lightweight so it is easy to get used to having it on. I bought this after researching that it does the same things as competitors at a more reasonable price. However, I do find myself skeptical about the data it captures specifically when it says I have done a lot of walking during times I have been stationary, but it doesn't capture when I have just played a sport or other activity very well. That said, I do find that how I generally feel after I sleep does coincide with my sleep scores most of the time.

[This review was collected as part of a promotion.] I bought this ring 2 months ago and I’ve really liked it. I really enjoy the circadian rhythm feature, the steps and the sleep index. I would like to be able to add a dish and its macros as I’ve have not been able to do so. The ring also does not take into account in the sleep debt a night where you do not sleep. Overall I think this is a great and ver useful product and I’m really happy with my purchase.

[This review was collected as part of a promotion.] I have had this ring for about 2 months now and love it. I am not usually super into this stuff, but the insights are unreal. I mostly wanted it to count my steps and help me with my sleep, but it does so much more like my stress levels, caffiene, and insights on my cycle. I also thought it would be uncomfortable but I barely notice it, and the only ring I wear is my wedding rings.

[This review was collected as part of a promotion.] I’ve been using it for three months now, and there are some things that I like and some things that I don’t I find that the heart rate tracking, especially when I’m logging a workout is very inaccurate. I’ve even compared it with results from another fitness tracker of mine that I’ve worn at the same time to confirm. The sleep tracker is probably my favorite feature.

[This review was collected as part of a promotion.] I’ve been testing the Ultrahuman Ring Air, and it’s quickly becoming a valuable tool for monitoring recovery, sleep, and overall readiness. The design is sleek and comfortable, making it easy to wear around the clock without disrupting daily activity or training sessions. What stands out most is the depth of insight provided. HRV tracking, sleep stage analysis, and metabolic health markers are presented in a way that’s both actionable and easy to interpret. The seamless integration with Ultrahuman’s ecosystem adds another layer, allowing for a more holistic approach to athlete monitoring and personal performance optimization. For anyone serious about understanding their body’s response to stress, recovery, and training load, the Ultrahuman Ring Air offers a level of precision and usability that’s hard to match. I’m excited to continue exploring how this can support athletes at the elite level.

[This review was collected as part of a promotion.] I find the ring such a helpful tool to keep track of my sleep and encourage me to look after myself. It helps me focus on my sleep and my self care generally. Gently reminding me when to move more or lay off the caffeine. The main thing it has helped me with is getting sunlight first thing in the morning to help regulate my circadian rhythm. I feel more in control of my habits as I can check in with the app anytime to see what my body is dealing with.

[This review was collected as part of a promotion.] I got this ring for Mother’s Day and I love it. My only gripe is this is my second ring because my first one wouldn’t connect anymore and there have been a few times where I’m in workout mode my ring doesn’t register my heart rate. Overall I do love all the data the ring provides.