[This review was collected as part of a promotion.] The ring works well and detects things really well, except for the menstrual cycle even though I've been wearing it all the time since December, it still doesn't give the right predictions. And when will the weight loss module be available?

[This review was collected as part of a promotion.] I've been using the Ultrahuman Ring AIR for a few weeks now, and the difference in sleep quality and recovery is night and day. The real-time biomarker insights (especially HRV and skin temperature) gave me more control over my routine and helped me make smarter lifestyle choices. It’s not just a tracker - it’s a personal performance optimizer. Looking forward to more firmware upgrades and continued improvements. Great product, strong ecosystem.

[This review was collected as part of a promotion.] I’ll be returning soon, as there were ~8 different support personnels assigned but no sense of ownership to resolve the issue. I liked the ring and the fact that I didn’t need to pay for subscriptions but maybe it’s worth it to pay little more.

[This review was collected as part of a promotion.] I’ve been using the Ultrahuman Ring AIR for a few weeks now, and I’m genuinely impressed. It’s sleek, lightweight (you forget you’re even wearing it), and packed with features that offer deep insights into both fitness and recovery. What I love: Form Factor: The ring design is a huge win. It's more subtle than a smartwatch and comfortable enough to wear 24/7—even while sleeping or working out. Sleep and Recovery Insights: The recovery score and sleep tracking are incredibly accurate. It not only tells me how long I slept, but how restorative that sleep was, which helps guide how hard I should push myself the next day. Metabolic Health Tracking: Paired with the Ultrahuman app, the AIR ring gives great context around glucose variability and how your body responds to food, movement, and rest—especially if you're also using their M1 glucose monitor. Battery Life: Lasts around 4-6 days on a single charge. The charging case is also very convenient. Could be better: No live heart rate: It tracks HRV and resting heart rate well, but doesn’t give live heart rate data like some fitness trackers. Size availability: Sizing can be a bit tricky, so make sure to try the sizing kit before ordering your actual ring. Still evolving: Some features are still in beta or rolling out slowly. But the updates so far have been meaningful. Final Thoughts: The Ultrahuman Ring AIR feels like the future of health optimization. If you're into biohacking, performance training, or just want to better understand your body’s rhythms, it’s absolutely worth considering. It’s not just about data—it’s about making smarter daily decisions. Highly recommended.

[This review was collected as part of a promotion.] I really like the ring, it comes with several reports and great insights on cardiovascular status and brain health. The fertility/ovulation tracker is interesting and why I got this product, but I wish it could be developed further and become a central part of the app instead of just a plugin. There's another plugin on caffeine consumption window, which is interesting but not necessarily accurate. For instance, I know I am a fast metabolizer, can drink coffee or energy drinks just before bed, but the ring is not capturing that. Otherwise I am looking forward to the updates!

[This review was collected as part of a promotion.] Overall, I'm very happy with my Ultrahuman Ring AIR. The tracking features are great, the battery life is good, and the app is very user-friendly. My only complaint relates to the fading of the ring over time. I have had my ring for just under 1 year and it has gone from gold to mostly silver due to fading.

[This review was collected as part of a promotion.] The Ultrahuman Ring Air has become an essential part of my daily routine. I especially appreciate how it gives me actionable insights into my health without having to wear an unsightly watch. I especially appreciate: Sleep tracking: The detailed breakdown of my sleep cycles helps me understand my rest patterns and make adjustments for better quality sleep. Cycle tracking: Being able to monitor my menstrual cycle alongside my overall readiness and recovery trends is incredibly helpful and makes the data more meaningful. Activity monitoring: I love seeing my steps automatically tracked—even on days when I’m not consciously thinking about movement, the ring keeps me on top of my activity goals. Caffeine consumption timing: One standout feature is seeing the ideal times to consume caffeine; it’s a simple but powerful detail that helps me avoid having late-day coffee that might impact my sleep quality. Overall, the Ultrahuman Ring Air provides a holistic and intuitive view of my health habits, making it easier for me to spot patterns, stay motivated, and make smarter choices each day.

[This review was collected as part of a promotion.] Ultrahuman Ring Air has been a lifesaver in tracking my sleep as I am not able to sleep with a watch on. The sleep, caffeine, and recovery insights are very useful in improving my quality of life each day. Also, the build quality and look is great!

[This review was collected as part of a promotion.] I purchased the ring in August last year and have enjoyed its features so far. However, I've noticed the battery has been draining very quickly recently, lasting less than a day, which is quite frustrating.

[This review was collected as part of a promotion.] I love the ultra human air. I feel like the in depth and multi faceted things it recognizes far surpasses other health rings out there. My only critic is when logging a workout sometimes it will stop tracking randomly and go back to the main page of the app basically not tracking your entire workout but this only happens maybe 1 out of every 10 times.