ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker

Over the years I’ve tried Withings, Fitbit, the Google Pixel Watch, and various cheaper off-brand “smart” watches. While some of them do impressive things, I’ve consistently been disappointed — mainly due to poor battery life, awkward small screens for basic tasks, and constant notifications that become more annoying than useful (assuming the battery hasn’t died first). This time, I wanted something simple and unassuming. Something that tracked my steps, sleep, and fitness metrics properly. No mandatory monthly subscription. No distraction on my wrist. Just useful insight. I’d been looking at smart rings for a while. Oura was the obvious comparison — it looks great — but the ongoing subscription cost and the patent disputes in the US put me off. Then I discovered Ultrahuman. Low barrier to entry The ring sizing kit cost me 10p (or I could have 3D printed one using files from their website). That immediately impressed me. By comparison, Oura charges around £10 for their sizing kit and only refunds it if you go on to buy the ring. Ultrahuman made the entry point incredibly accessible. The reviews were strong, battery life looked reasonable (4–6 days), and the app screenshots looked genuinely useful. Setup & first impressions I purchased the Ring AIR (size 11, brushed titanium) along with the Ultrahuman Ring Voyager charger for faster charging. Everything arrived promptly, and I was set up within minutes. The ring immediately told me it would take around 14 days to fully calibrate to my baseline metrics, but useful data started appearing within the first hour — even in “Chill Mode” (a battery optimisation mode that extends life further). For peace of mind, I also opted for Ultrahuman X (~£50 for 2 years), which covers accidental loss/damage. I know I specifically didn’t want a subscription model, but for an expensive device like this, that felt reasonable and optional. Battery life & comfort The ring is extremely comfortable — I often forget I’m wearing it. Battery life is around 4 days for me, and likely could stretch further. Charging with the Voyager dock is quick and painless — comfortably back to full within two hours. The app experience The app is genuinely impressive — and completely free. There’s a lot of data, which can feel slightly overwhelming at first, but Ultrahuman does an excellent job explaining what each metric means. The longer you use it, the more insightful the reporting becomes (weekly summaries are particularly useful). The app also includes “PowerPlugs” — optional add-ons that extend functionality. Many are free (e.g. Caffeine Window), while some are paid. For example, UltraSync for Tesla provides things like Drive Readiness Score and Drive Stress tracking. I was initially wary that this might be the “hidden subscription model” — but there are far more free PowerPlugs than paid ones, and the core functionality is more than sufficient for most users. It feels optional rather than restrictive, which is the right balance. There are also links within the app to Ultrahuman’s other products (Metabolism, Home, Vision). I was slightly concerned these might feel like constant upsells, but they’re unobtrusive. No annoying ads, no aggressive prompts — and if you owned those products, having everything within one app would actually be preferable to juggling multiple apps. Overall I’m genuinely impressed with the Ultrahuman Ring AIR. It’s comfortable, provides meaningful and well-presented insights, has solid battery life, and - importantly - doesn’t lock core functionality behind a mandatory subscription. It does exactly what I wanted: simple, smart health tracking without the noise. Highly recommended. Five stars from me.

When it worked, it was great, but the battery performance falls off very quickly, and one it does, support is frustrating and tedious. My first one ran fine for about 6 months, and then dropped from 4-5 days of battery life to needing to be charged twice a day in the space of about 6 weeks. The only support was accessible through the app, but insisted on repeated updates of firmware and factory resets with the instruction to "monitor it for 48 hours and come back to us" - this process ran for weeks before I lost my patience and insisted on a replacement. The replacement similarly dropped off in battery performance (and also suffered connection issues, regularly losing all data for several days at a time). Support was once again tedious and frustrating, and an update to the app format has made the support chat less straightforward to access. I'm now told (after multiple factory resets etc) that I'm out of my warranty period, and not elegible for a replacement - despite the app's support tool telling me that I'm eligible for a replacement - although as a goodwill gesture they are prepared to send me a certified refurbished ring. I haven't yet decided whether to accept, as I have already swapped to using an arm-worn tracker instead. The app isn't as slick and the insights aren't as helpful, but at least it stays charged for over a week and retains its connection to the app.

The ring is very comfortable and there is a lot of data that is tracked. I’ve been finding it quite motivating and helpful to improve my sleep and mindfulness. The period and ovulation tracking is fantastic and very insightful.

So far so good. Ring functions well with a few caveats. The times showing wake up etc are generally inaccurate. For example today I was up at 0458 and the ring indicated 0809. This then throws off some of the other stats. Additionally, I would like some more explanation or simplification of the stats and figures in the app as I am quite new at this. The ring looks good but come off periodically while I am doing things around the house. Perhaps I should have sized differently but wear it on my index finger by choice. May have to replace it for different size. Generally I am satisfied but would really like a less complex app UI for us newbies. Will update after further usage.

I'm really enjoying this ring so far. It gives detailed insights into my sleep and other vitals and tells me what I need to make improvements on. It looks very sleek and I get battery life of around 4-5 days use per full charge. The app is easy to understand you aren't bombarded with in app purchases so it's good value for money. The ring has a gloss finish so it's easy to slide on and off and is true to fit.

I’ve been using my Ultrahuman Ring Air for just a couple of weeks now and I'm happy to say that I really like it. I like how it works, the insights it provides and the ring itself. The app is very detailed and tracks a lot of information, which I’m still getting used to and learning how to fully understand. Sleep tracking was my main focus and so far it’s been really impressive. The ring itself also does a good job of calculating my steps. I wore my Fitbit alongside it for the first few days to compare the difference and I was pleased with how accurate the ring was. I love the overall design as it’s super sleek and blends nicely with my other jewellery. I’d definitely recommend using the sizing kit before buying. I’m glad I did, as my ring fits well (size 7). My finger does expand and shrink throughout the day, so it can feel slightly loose at some points, but aside from that the overall fit is good and I am able to wear my ring on both my pointer and middle fingers. Overall, I highly recommend buying this! I bought mine during the Black Friday sale, which was a great time to get it as I saved a lot of money in the end!

手首にウェアラブルバンドを使ってたのですが、寝てる時につけているのが嫌だったので、スマートリングにしました、軽くて付け心地もよく、今のところは気にいってます。 スマートリングのブランドとしては、海外ではそれなりに人気があるようですね。 アプリの表示項目は多くて、よくある活動量以外に回復や睡眠は細かいデータが表示されます。 睡眠改善が目的で購入したのですが、朝に振り返ると、前日の活動量や飲酒、寝た時間の影響など良かったり悪かった気付きがあります。 またPowerplugsといわれる追加機能で、睡眠に関連するようなカフェイン摂取の推奨時間帯がみれたり、日光浴の時間記録、スマホのスクリーンタイムの可視化、体内時計のリズムなどいろいろな機能があり、まだ上手く使いこなせてないですが、睡眠の質向上に活かせたらなと思ってます。 バッテリーは3日前後といった感じです、追加機能をオンにしてたり、アプリもよく見るほうだと思うので、仕事中に座ってるときに2、3日に1回充電してます。 リングの中には安いのもいろいろあるようですが、データが数値やグラフで細かく表示され、追加機能もありお値段するだけの高機能なリングだなと思ってます。月額料金がかからないのもいいですね。 睡眠改善と、回復も意識して使い続けたいなと思います。

It works just fine, the customer service is excellent, size fits alright. The pregnancy mode doesn't really do much apart from telling me how far along I am and which stats can be different... and then the app tells me to pay attention to exactly those stats. Okay.

llevo usándolo 3 meses y es parte de mi rutina diaria. La batería dura mucho y las métricas son parecidas a law del Apple Watch así que ya no dependo del reloj tanto. Y estéticamente es guapisimo

La pila dura 2 giorni non 6 le info non sono esatte volevo sostituire L Apple Watch ma non sono riuscito uso di nuovo L Apple Watch

secondo me il miglior ring... purtroppo se lo prendete colorato la vernice si toglie facilmente, però per il resto non ha abbonamenti nè altro di periodico ed è molto sottile