[This review was collected as part of a promotion.] I have had the ring for a few months now. To be honest it came defective and I had a hard time having it replaced.. it took almost two months to have it replaced. That being said it seems to work well. There is a lot of information tracked so it is difficult to know how accurate it really is. The sleep tracking and temperature tracking work well.

[This review was collected as part of a promotion.] I bought my ring back in March and I have loved it ever since! It keeps track of all of my sleep, including my naps! I love to check my stats as soon as I wake up and throughout my day. It keeps track of when I should and shouldn't have caffeine as well! I like that it keeps up with my ultrahuman age and my heart and brain levels. It makes me feel way better about myself and my lifestyle, knowing that I have an app and ring to keep track of all my information and see what is improving and what is not! This ring is the bomb diggity! I highly recommend it, it's worth the money!!

[This review was collected as part of a promotion.] I bought this a few months ago and I love it so far. It's much less bulky than other workout/sleep/lifestyle smart trackers and I feel that the insights are helpful in detecting where I can improve my sleep and exercise habits.

[This review was collected as part of a promotion.] I bought this ring for two months ago. My career is quite stressful and sit for long time. This ring can help me to improve my health by reminding moving, controlling caffeine consumption, and relaxing from stress. It has programs for breathing meditation that interesting. I love this ring.

[This review was collected as part of a promotion.] I’ve had the ring for about 6 months…overall, I like the data it collects and find it helpful for my overall health. But I also find there to be some downsides to it as well. PROS: I like the sleep and stress data. It’s very easy to check and tie to my recent habits to determine how to optimize sleep, etc. It wears nicely for daily use and I found a silicone ring cover for using when lifting weights so it doesn’t scratch. The app is very comprehensive! CONS: I find that the battery wears down faster than I anticipated. I usually have to charge it every 2-3 days. Sometimes, I notice my heart rate is slightly elevated on the rings recording versus my own self taking HR. Not a huge deal but I think that the stress level is therefore elevated. Something to be aware of. I got the gold finish and even with the silicone cover, I find the finish is fading and scratching very easily. Not sure if they have a remedy to fix this as it’s only 6 months old and I’d like it to last longer than that.

[This review was collected as part of a promotion.] I've had my Ultrahuman AIR ring about for six months now, and it's changed my life. I can't believe how granular and specific the data is. Logging my food, the app made suggestions for how to improve my nutrition, which I incorporated. Tracking my sleep, it tells me when I'm not sleeping enough, when my sleep is disturbed, and it makes recommendations for how to improve my circadian rhythm and sleep cycles, which I have incorporated. For example, it can tell when I've eaten too late or consumed caffeine too late causing worse sleep performance. A feature I really love is the stress data. It perceives my stress and is incredibly accurate! I love how it tells me this, and then I try to incorporate behaviors, which it suggests, to improve my stress, such as meditation activities, working out, and earlier sleep. Then there are the weekly reports and body signal readings, which delve into particular health details to tell you what's going right or wrong about your body's biodata at a particular time. Also, I love the cardio age and Ultra age estimates, which gives me insight into tracking how I'm aging. I had a smart watch tracker for many years before this smart ring purchase, and they were requiring frequent replacement due to burn-out and provided hardly any of the data-driven health insights that the Ultrahuman AIR ring does. And then there's the fact that it is a handsome piece of jewelry on my finger, and the battery life is great requiring infrequent charging. I just can't rave enough. I've told all my friends and strongly encourage anyone who is interested in data and genuine information about their body and health to purchase and use the Ultrahuman AIR smart ring. It changed my life and I love it!

[This review was collected as part of a promotion.] Seh detaillierte Einblicke in die wichtigsten Biomarker. Hat mir extrem wertvolle Erkenntnisse geliefert um meine Schlaf zu verbessern, meinen Tag besser zu planen und meine Gesundheit und mein Wohlbefinden spürbar zu verbessern. Ich verstehe meinen Körper und meine Stress Reaktion nun viel besser.

I bought my ring 3 months ago and the feature I use the most is tracking my sleep and temperature. Thanks to Ultraring I have better knowledge what affects my sleeping and I have been able to get much better night time rest. Feature that needs improving in my opinion is movement tracking.

[This review was collected as part of a promotion.] I am very happy with the features of this ring. My only small issue is the battery seems to die rather quickly. But overall great experience! The menstrual cycle/contraception tracker is super helpful.

[This review was collected as part of a promotion.] I have tattoo's everywhere, head to toe. Smart watches such as garmin etc dont work due to the ink reflecting the sensor. This changed everything, I get all the insights I've been missing and helping to make better health and life choices.