Ultrahuman Ring Air Review: Is This Smart Ring Worth It?
Please note I received this ring to test and share with you, but all thoughts are my own. I also receive a small amount of commission if you go on to buy one, and you save too with my discount code!
I’ll be honest with you. When I first heard about smart rings, I thought they were just another tech gimmick. But after wearing the Ultrahuman Ring Air for about 4 weeks, I’ve completely changed my mind. This tiny piece of technology has given me insights into my body that I never knew I needed.
As someone who’s always been curious about health tracking but found my smartwatch (Samsung Galaxy 6) a little disappointing because it wasn’t as smart as I thought it should be, the Ring Air felt made for me.
In this review, I’ll share my honest experience with the Ultrahuman Ring Air. I’ll cover everything from what it measures to how accurate it is, plus the pros and cons you need to know before buying.
What is the Ultrahuman Ring Air?
The Ultrahuman Ring Air is a lightweight smart ring that tracks your health 24/7. Unlike smartwatches that sit on your wrist, this ring weighs just 2.4 grams and measures your vital signs from your finger.
Why your finger? Because fingers have better blood flow than wrists. This means the data is more accurate. The ring tracks your sleep, recovery, movement, heart rate, and temperature. For women like me, it also offers detailed menstrual cycle tracking.
The best part? There’s no monthly subscription fee. You pay once and get lifetime access to all your data.
Ultrahuman Ring Air: Specs, Sensors & What It Measures
Let me break down what this small ring can actually do. If you are anything like me, you will read this and be wowed already, but I also want to share the pros, cons, and what I think, so read on!
Physical Specs
The Ring Air is made from titanium with a tungsten carbide carbon coating. This makes it super durable and scratch-resistant. The inside features a hypoallergenic epoxy resin coating, making it comfortable to wear all day and night. I tend to react quickly to things, and I have had no issues with the ring.
It comes in six colours: Brushed Rose Gold, Raw Titanium, Aster Black, Matte Grey, Bionic Gold, and Space Silver. I went with the Aster Black because I wanted something that looked good with any regular jewellery.
The ring is 2.4mm thick and 8.1mm wide. It’s so light that I forget I’m wearing it.
Sensors
The Ring Air has quite a bit of technology despite its small size:
Infrared PPG sensor: This measures your heart rate and blood oxygen levels throughout the day and night. This is important to me as I have had issues with my oxygen dropping before, so I like to keep an eye on it.
Skin temperature sensor: This tracks changes in your body temperature. I like this feature because it helps predict my menstrual cycle and shows when I might be getting a bug.
6-axis motion sensors: These track your movement and sleep stages.
The ring uses red, green, and infrared LEDs to collect data. It connects to your phone via Bluetooth and works with both iPhone and Android devices.
What It Measures
Here’s what the Ring Air tracks:
Sleep: Sleep stages (light, deep, REM, and awake time), sleep duration, sleep efficiency, and sleep score. I was impressed by how detailed the sleep data is. It breaks down exactly how much time I spend in each sleep stage. I was also surprised to see the number of times I move in my sleep! The following shows the brain waste clearance, so how restful your sleep was in essence.
Recovery: Heart rate variability (HRV), resting heart rate, skin temperature, and recovery score. The recovery score helps me decide whether to push hard at the gym or take it easy.
Movement: Steps, active minutes, inactive time and calories burnt.
Heart health: Continuous heart rate monitoring and HRV tracking. There’s also an optional AFib detection feature.
Menstrual cycle: Cycle phase predictions, ovulation window, and temperature variations throughout your cycle. This feature has been fascinating for me. I never realised how much my cycle affected my sleep and energy levels.
Circadian rhythm: The ring tracks your body’s natural rhythm and suggests the best times for caffeine, bright light exposure, and sleep.
Pregnancy: This one isn’t relevant for me, but a free PowerPlug to give you extra data insights relevant to your pregnancy is available.
New Parent: Another free PowerPlug I didn’t need but you might!
Shift Work: Another one not relevant for me, but pretty handy if you are a shift worker!
Vitamin D: A super helpful PowerPlug to add on for free if, like me, you need reminders that you should go outside more!
There are also PowerPlugs for screentime, Circadian Rhythm, Caffeine Window and a few paid options. The paid options are Cycle and Ovulation Pro at £2.99 a month – to be honest, I am not sure how much benefit this would be unless you are tracking ovulation for pregnancy, because the free version still tells me roughly when I am ovulating! Ultrasync for Tesla is £6.90 a month. If you have a Tesla, maybe you feel this would be helpful? For me, I don’t!
Battery Life
The battery built into the Ultrahuman Ring Air lasts 4 to 6 days on a full charge. In my experience, I get about six days. It takes about 3 hours to fully charge from 0% to 100%. I generally put it on charge whilst working, and when it gets down to 20% as that works best for me, and I would say it takes around 90 minutes to charge it then.
The Ultrahuman ring air comes with a standard charger, but you can also buy a portable Voyager charger for travelling.
User Experience
Setting Up
Setting up the Ultrahuman Ring Air was straightforward. First, I ordered a free sizing kit. This was important because getting the right size affects how accurate the data is. The kit came with plastic ring samples in different sizes. As the ring is quite wide compared to a standard dress ring, I would advise getting the sizing kit, as otherwise you could easily end up choosing the wrong size.
I found my size and placed my order. The ring arrived about two weeks later, but they say to allow up to 4 weeks. I downloaded the Ultrahuman app, paired the ring via Bluetooth, and started wearing it. The size I chose is perfect on a few of my fingers, depending on the heat of my hands and what I am doing, so I do tend to swap it around a bit if one finger is a bit hot!
The app walked me through the setup process. It asked about my age, weight, activity level, and whether I wanted to track my menstrual cycle. The whole process took about 10 minutes.
Daily Use
Wearing the Ultrahuman Ring Air has quickly become second nature. I usually wear it on my index finger because that’s what felt most comfortable. The app recommends wearing it on your index, middle, or ring finger.
The ring is waterproof up to 100 meters, so I wear it in the shower and could even wear it while swimming if I wanted!
Every morning, I check the app to see my sleep score and recovery score. The app gives me a simple overview first, then I can dig into the details if I want. I like this because some mornings I just want the quick summary, and other times I want to understand exactly why my sleep wasn’t great.
It also monitors my screentime and when I should and shouldn’t use screens to help me sleep better.
The Menstrual Tracking Feature
This is where the Ultrahuman Ring Air really stood out for me. The basic menstrual tracking is free, but you can pay to upgrade for more functions.
The ring uses temperature changes to predict my cycle phases. After wearing it for about 4 weeks, I have noticed it is giving me a different suggestion as to when my period will start to my smart watch. Interestingly, I delayed writing this review to see which would be the most accurate.
But what I found most interesting was seeing how my cycle affected everything else. During the luteal phase (the week before my period), my deep sleep decreased and my resting heart rate increased. Understanding this helped me adjust my expectations. If I feel tired before my period, I know it isn’t just in my head.
I am due on my period anytime about now, but I have huge issues with my cycles, so I never know exactly when to expect it. My watch did initially say I should be due to start today, well, that hasn’t happened, and I don’t even feel like I will, so I think the ring is more accurate for sure, as that is suggesting in a couple of days, which feels more likely to how my body feels. Incidentally, now my watch is guessing next week! It just chops and changes, whereas the Ultrahuman Ring Air constantly checks my temperature and tells me which phase of my cycle I am in!
The App
The Ultrahuman app is well-designed and easy to navigate. It has the following main sections: Sleep, Dynamic Recovery, Caffeine Window, Stress Rhythm, Movement, Heart, Ultra Age, Cycle Tracking, Sleep Debt, Smart Alarm, Social Jetlag, Circadian Rhythm, Body Signal, Brain Waste Clearance, and Zones. It also has individual markers, including your BPM (Heart rate), HRV (heart rate variability), Resting HR, and VO₂ Max.
Some of these are PowerPlugs I added (like optional extras), I didn’t pay for any of them and only chose the free ones, but there are also some paid add-ons eg UltraSync for Tesla.
Each section shows your current score and trends over time. You can tap on any metric to see more details. For example, if I tap on my sleep score, I can see my sleep stages, time asleep, sleep efficiency, and all the factors that contributed to my score.
The app also sends helpful notifications to my phone. If my recovery score is low, it suggests taking it easy. If my caffeine window is open, it lets me know. I found these nudges useful without being annoying.
What I Didn’t Like
No device is perfect, and the Ring Air has a few drawbacks.
First, the sizing matters a lot. If the ring is too loose, the sensors won’t work properly. If it’s too tight, it’s uncomfortable. I’m glad I used the sizing kit.
Second, the ring doesn’t have a display. You need to check your phone to see your data. This wasn’t a problem for me, but if you want real-time stats during a workout, a smartwatch might be better.
Third, the Ultrahuman ring air can’t track specific workouts like running or cycling as precisely as a smartwatch with GPS. It counts steps and estimates calories, but it won’t give you detailed pace or route information.
Finally, while it shows many things, it isn’t like a smart watch in that you can not make or receive calls, text, or listen to music with it. To me, this wasn’t important, but I wanted to point it out in case anyone was unsure.
Design & Durability
The Ultrahuman Ring Air looks like a regular chunky ring. Most people don’t realise it’s a health tracker unless I tell them. The titanium construction makes it durable. After one month of daily wear, mine still looks new with no scratches or damage.
The inside coating is smooth and comfortable. I’ve had no skin irritation, even though I wear it 24/7. The ring is also quite sleek. At only 2.4mm thick, it doesn’t catch on clothes or feel bulky.
I chose the Aster Black colour, which has a subtle matte finish. It goes well with everything and doesn’t look too tech-y. If you want something that stands out more, the Bionic Gold or Brushed Rose Gold options are eye-catching.
Ultrahuman Ring Air Accuracy
Accuracy is crucial for any health tracker. I was impressed by how accurate the Ring Air is, especially for sleep tracking.
Sleep Tracking Accuracy
I compared the Ultrahuman Ring Air’s sleep data to how I actually felt each morning. The correlation was strong. When the app said I had poor sleep, I felt tired. When it said I had great sleep, I felt refreshed.
I also compared it to my smart watch. The sleep stage durations were similar, which gave me confidence in the data. However, my watch didn’t show anywhere near as much detail.
The Ultrahuman ring air detected when I woke up during the night, even when I didn’t fully remember it. This helped me identify patterns. For example, I noticed I woke up more often after eating late, having worries before bed or having caffeine in the evening.
Heart Rate and HRV Accuracy
The heart rate monitoring felt accurate on the Ultrahuman Ring Air based on manual checks I had recently done at the doctor’s. The ring measures your heart rate periodically throughout the day and continuously during sleep.
The HRV tracking was particularly interesting. HRV measures the variation in time between heartbeats. Higher HRV generally means better recovery and lower stress.
I noticed my HRV was lower after stressful days or poor sleep. It was higher after rest days and good sleep. This matched what I’d expect.
Temperature Tracking Accuracy
The skin-temperature-tracking method seems to be accurate at predicting menstrual cycles. I am confident so far in the predictions based on my temperature, but I will amend and update this in a few months with a better guide on my experiences.
Movement Tracking Accuracy
The step counting was reasonably accurate. It counted steps during walks. However, it sometimes missed steps during activities where my arms didn’t move much, like pushing a shopping trolley around Asda! The calorie estimates generally seemed reasonable based on my activity level and weight.
Ultrahuman Ring Air Pros and Cons
After 4 weeks of use, here are the main strengths and weaknesses I see. I love my Ultrahuman Ring Air and am astonished with how much it can tell me!
Pros
Lightweight and comfortable: At 2.4 grams, I genuinely forget I’m wearing it. It doesn’t interfere with daily activities or sleep.
No subscription fees: You pay once and own all your data forever. This is a huge advantage over the Oura Ring, which requires a monthly subscription.
Detailed menstrual tracking: The temperature-based cycle predictions are accurate and insightful. Understanding how my cycle affects sleep and recovery has been useful.
Excellent sleep tracking: The sleep data is detailed and accurate. It’s helped me improve my sleep habits.
Good battery life: Six days between charges is manageable. I charge it while working at my desk, so it works well for me.
Durable design: The titanium construction is scratch-resistant and waterproof. It looks like regular jewellery.
Helpful app: The Ultrahuman app is well-designed and easy to use. The insights are simple and easily actionable without being overwhelming.
Circadian rhythm tracking: The caffeine window and bright light exposure suggestions have helped me optimise my energy levels. I often now avoid a morning coffee and have it later in the day and find I have more energy because of this.
Cons
Sizing is crucial: Getting the right size is important for accuracy. The free Ultrahuman Ring Air sizing kit helps, but it adds time to the process.
No display: You need your phone to see your data. If you want real-time stats, this might be frustrating.
Limited workout tracking: Without GPS, the ring can’t track runs or bike rides as precisely as a smartwatch.
Takes time to learn your baseline: The ring needs about two weeks to establish your baseline. During this time, the data is less accurate. However, I found that after this, the data was amazingly accurate.
Premium features cost extra: Advanced features like AFib detection and detailed cycle tracking require purchasing PowerPlugs. I did personally find these were not essential for what I needed, and this whole review and every element I mention was free with no extra charges.
No half sizes: If you’re between sizes, you have to choose one or the other. This might affect comfort or accuracy.
Smart Ring or Smartwatch?
This is a question I asked myself when wondering if a Smart Ring like the Ultrahuman Ring Air would be good for me or if I should stick to my smartwatch. Here’s what I learned.
Choose an Ultrahuman ring air if you want:
- Something discreet that looks like jewellery
- Excellent sleep tracking without wearing a watch to bed
- All-day comfort without bulk
- No distractions from notifications or screens
- Accurate passive health tracking
Choose a smartwatch if you want:
- Detailed workout tracking with GPS
- Real-time stats during exercise
- Notifications and quick replies
- Music control and other smart features
- A display to check stats without your phone
For me, the ring was the right choice for the detailed health tracking, but I will still wear my smartwatch for messages and calls!
That said, if you’re a serious athlete who wants detailed workout data, a smartwatch might be better. Or you could wear both, the Ultrahuman ring air for sleep and recovery, and a watch for workouts.
Ultrahuman Ring Air and Weight Loss
If you haven’t seen my other posts, you won’t know that I am getting married in 2027 and trying to lose weight. I was impressed that for £54 for 2 years you can cover the ring against accidental damage, theft, loss and weight loss. Yes, that means you can get a replacement if you lose weight (you can only do this once during the 2-year period!).
Ultrahuman Ring Air Discount Code
If you’re thinking about buying the Ultrahuman Ring Air, I have good news. You can save 10% on your purchase with my discount code.
JENMELLOR10
The Ultrahuman Ring Air costs £329, so a 10% discount saves you about £33. That’s significant as it takes it just under £300. Plus, remember there are no subscription fees to worry about later unless you choose any paid PowerPlugs, I didn’t, and you totally do not need to!
There are also discounts available for students and various professionals; however, I imagine you can’t use these together, and they are the same 10% so you may as well use mine, which everyone can use!
Frequently Asked Questions
How accurate is the Ultrahuman Ring Air?
The Ring Air is very accurate for sleep tracking, heart rate monitoring, and temperature-based cycle predictions. I found the sleep data matched how I actually felt.
The step counting is reasonably accurate but can miss some steps during certain activities. Without GPS, distance tracking is an estimate rather than a precise measurement.
Does the Ultrahuman Ring Air require a subscription?
No. This is one of the Ultrahuman Ring Air’s best features. You pay once (£329) and get lifetime access to all your data. There are no monthly or yearly fees. Some advanced features like AFib detection and detailed cycle tracking require PowerPlug purchases, but the core features are included and I found them enough.
How long does the battery last?
The battery lasts between four to six days. In my experience, I get about six days. It takes approximately three hours to charge from zero to 100%.
Can I wear the Ultrahuman Ring Air in the shower or pool?
Yes. The Ultrahuman Ring Air is waterproof up to 100 meters for up to 12 hours. I wear mine in the shower without any problems. Just make sure it’s properly fitted so it doesn’t slip off. I don’t swim but I could wear it swimming if I wanted!
How does the menstrual cycle tracking work?
The Ring Air uses skin temperature variations to track your menstrual cycle. Your body temperature changes throughout your cycle, rising slightly after ovulation. The ring detects these changes and predicts your cycle phases and ovulation window.
After wearing the ring for 4 weeks, I have found it accurate, and whilst I initially thought my period was due on the 20th October, it soon changed to 24th with my temperatures. I found this really helpful.
What finger should I wear the ring on?
Ultrahuman recommends wearing the ring on your index, middle, or ring finger. I mostly wear mine on my index finger because that’s what feels most comfortable. The important thing is that the Ultrahuman ring air fits snugly without being too tight. If it’s too loose, the sensors won’t work properly.
How does the Ring Air compare to the Oura Ring?
Both rings offer similar core features: sleep tracking, activity tracking, and temperature monitoring. The main differences are:
Price: The Ultrahuman Ring Air costs £329 with no subscription. The Oura Ring starts at £299 but requires a £69.99/year subscription.
Features: The Ring Air offers circadian rhythm tracking and caffeine window detection, which Oura doesn’t have. Both offer cycle tracking and AFib detection.
Design: The Ring Air is slightly lighter (2.4-3.6g vs 4-6g). Both are durable and waterproof.
Battery: Oura lasts up to seven days, while the Ring Air lasts four to six days.
For me, the no-subscription model, Menstruation tracking features and circadian rhythm features made the Ultrahuman Ring Air the better choice.
Can I track workouts with the ring?
Yes, but with limitations. The ring tracks steps, calories, and VO2 max. However, without GPS, it can’t track running or cycling routes. It won’t give you pace information or detailed workout stats like a smartwatch would.
If you want basic activity tracking and recovery insights, the ring works well. If you want detailed workout analytics, a smartwatch is a better option.
Is the ring comfortable to wear all day?
Yes. I find the Ultrahuman Ring Air very comfortable. It’s so light that I often forget I’m wearing it. The smooth inner coating prevents irritation. I’ve worn it 24/7 for three months with no discomfort.
The key is getting the right size. Too tight and it’s uncomfortable. Too loose and the sensors won’t work properly. This is why the free sizing kit is so important.
Does the ring work with both iPhone and Android?
Yes. The Ultrahuman app works with iPhones running iOS 15 or later and Android devices running Android 6 or later. I use it with a Samsung S24 Ultra, and the experience has been smooth. The data syncs automatically via Bluetooth.
Is the Ultrahuman Ring Air Worth It?
After three months of daily wear, I can confidently say yes. The Ultrahuman Ring Air is worth it if you want detailed health insights without the bulk of a smartwatch.
The menstrual tracking has been particularly valuable for me. Understanding how my cycle affects my sleep, energy, and recovery has helped me make better decisions about when to push myself and when to rest.
The sleep tracking is excellent. I’ve used the insights to improve my sleep habits, and I genuinely feel better rested. The recovery scores help me decide what time to go to bed and whether to read before I sleep.
At £329 with no subscription fees, the Ultrahuman Ring Air is a fantastic buy for your health. It’s not cheap, but compared to a smartwatch plus monthly subscriptions, it’s reasonable. Plus, you can use my 10% discount code to save money.
Is it perfect? No. The lack of GPS limits workout tracking, and getting the right size is crucial. But for passive health tracking that you can wear 24/7 without thinking about it, the Ring Air is hard to beat.
If you’re curious about your sleep, recovery, or menstrual cycle, I recommend giving it a try. Based on my experience, I think you’ll find it as useful as I have.
Do you have an Ultrahuman Ring Air? Would you buy one? Let me know what you think in the comments!
