[This review was collected as part of a promotion.] I've been using the Ultrahuman Ring for a while now and have truly enjoyed the product. The overall experience has made me feel that health should be approached through the Ultrahuman Ring and their app. I like the caffeine window.

[This review was collected as part of a promotion.] Up until a week ago it was working fine, registering my values efficiently. After the latest update however, the battery doesn’t last a whole day anymore. When it was new I didn’t need to recharge it for approximately 3 days. I like wake up function (found a favourite tune) and I use it almost daily. I don’t have a second devise to compare the functions to so can’t really say much about its accuracy. However, I chose this ring above Oura simply because it doesn’t require a subscription to see the more complex values from recording your sleep. Another reason for choosing this over Oura was the aFib detection and cardiofunction, but I got quite disappointed from learning that these two functions require a subscription. On the plus side I like the layout and I find the info about all things it contains to be interesting.

Feature improvements: - heart rate button (real time sometimes I want to check) - Same day activity detection instead of the next day - Better small walk detection - the app tells me to move but then labels my stress as high - Deep sleep and main hr drops seems to be a bit spotty which makes for a pretty extreme move in my restfulness scores That aside I really enjoy the product and it’s worked well for me!

[This review was collected as part of a promotion.] I’ve been using it now for 2 months and am really happy overall with my experience. As a runner, I find all of the cardio age and vo2 max statistics really helpful and it’s been great to see them changing the longer I use the ring. The battery is good, I charge it whilst I’m at my desk every few days or so and it’s relatively fast to charge to full battery. My only reason for not giving it 5 stars is the period tracking. I was under the impression that as it measures your body temperature it would predict cycle outcomes based on this, not just 28 days. As someone with an irregular period, if it is late, the app just says that my period is in an unknown phase. It seems to basically be their own version of an app such as flo. I don’t find it to be any more accurate, despite the body temperature measuring.

[This review was collected as part of a promotion.] This has been soooo helpful especially with sleep and now I know why I am so tired! It has also helped me with my activity level and has made me increase my steps - daily. The only thing that I have an issue with is sometimes when I have an activity running, for example I’m out running. It will randomly just close out and I have to start over again when I’m already midway through my workout.

[This review was collected as part of a promotion.] My wife gave this to me as a gift. It is far more accurate than my Apple Watch at tracking sleep and I find it helpful that it suggests possible causes for sleep issues. Some wear issues from normal use that I would have hoped for better given the cost.

[This review was collected as part of a promotion.] I bought my ring 13 Month ago, and sadly the first versions I received had some problems. On the first one after 2 Month all sensors stopped working but Ring was still charged. On the second and the third ring the epoxy got weak after 4 Month and pieces of epoxy fell out where upon the ring either stopped working fully or took a day to charge and half an hour to discharge. The forth ring I received now 3 Month ago and sofar so good, Epoxy still normal, sensors work fine and battery all ok. All broken rings replaced under warranty without discussion. As for its functions, it is just great, I use it the most to track my sleep and heartrate, but also tracking sports is easy. What I like the most is that you do not notice wearing it, due to its weight, same or lighter then other "normal" rings.

[This review was collected as part of a promotion.] Honestly, I love the Ring AIR. I received it as a Christmas gift from my husband and all the data output has been amazing; I love the tracking, all the types of data & insights, and the fact it replaces a handful of gadgets into a simplified app! Added bonus is the new additions coming all the time with fertility & cycle tracking, and how the insights play into my pregnancy with resting heart rate & sleep data. The only reason for a drop in the stars is because the battery life/capacity has greatly diminished in the months since I started using it (I received the ring in December, and have used it daily for the last seven months). While at first it lasted a few days at a time, now even in a lower "Chill" mode, I have to charge it multiple times per day to be sure I have enough battery power to track my sleep data overnight.

[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 purchased my Ring AIR back in March and I’m very happy with the results. It has made me more aware of my sleep patterns, sunlight exposure and overall health. It’s very important for me to keep track of these items because if my sleep hours are low then it can affect me during my daily routine. The ring is comfortable and no issues with wearing it while I sleep. It does charge pretty fast which is convenient. Overall, happy with my purchase!