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Ultrahuman Ring Air Review: A Sleek, AI-Powered Health Companion for Better Sleep and Wellness

The Ultrahuman Ring Air is a smartu ring designed to track your sleep, recovery, and activity, all while providing suggestions for improvement via an app on your phone. After testing it thoroughly, I can say that it feels like a genuinely helpful piece of wearable tech. If you’re looking for detailed sleep data and health insights in a discreet form factor—without no subscription fees—this ring is worth considering. Enjoy the review.

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Table of contents

My First Impression

Author – Jason Hill

The first time I heard about the Ultrahuman Ring Air was when the team reached out to see if we wanted to review one. I had previously messaged the guys over at Oura Ring in hopes they’d send me one for testing, but they were very uninterested. So, obviously, I was excited to try an alternative that appeared to provide the same metrics.

For those unfamiliar, the Ultrahuman Ring Air is a smart ring designed to track your sleep, recovery, and activity and provide suggestions for improvement via an app on your phone. I was most interested in sleep tracking, as I feel like GPS watches like the Coros Pace 3 focus on activity rather than recovery. So, is this additional hand hardware helpful? I’ve got some thoughts.

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Ultrahuman Ring Air Sizing Guide Available Before you Buy
Ultrahuman Ring Air Outside Showing its sheen

Performance and Daily Use

The first step in securing your new Ultrahuman Ring Air is finding the correct size. Thankfully, Ultrahuman makes this process very easy by sending you a sizing kit that also includes the different color options. I wore a pseudo ring for a few nights to get used to it and ended up going with a size 6 in the Raw Titanium finish for my index finger (I’ll go more into the sizing later). The ring itself is extremely light — between 2 and 3 g depending on your size — and I often forgot it was even on my finger.

Onto the data and nerdy stuff that you’re probably here for. The app provides an overview of your day bucketed into movement, stress rhythm, dynamic recovery, and sleep. Below those dashboards are individual markers such as HRV, resting HR, VO₂ Max, temperature, etc. It feels a bit overwhelming at first, but once you get used to viewing the data each day, it’s easy to digest and also easy to spot patterns.

The most useful dataset I found was the breakdown of my sleep scores. Even when getting 8-plus hours of sleep, there were significant differences in how I felt based on when my HRV dropped (this takes longer when alcohol is consumed) and when my sleep efficiency was low (not in a relaxed state before bed). The app will then use this data to give you prompts throughout the day, like when to stop drinking caffeine, when to turn off screens (lol), and when to get up and move around. None of the information is groundbreaking, but it’s the reminders and information at your literal fingertips that make it hard to ignore and promote actions to better yourself.

Future Potential

The Ultrahuman Ring Air is already a solid option in the growing smart ring market. With no subscription fee and a well-designed app, it has the potential to evolve even more through firmware updates and additional software features. I’m looking forward to seeing how Ultrahuman continues to refine its metrics or add new data points. Whether that’s more advanced stress tracking or even deeper integration with third-party apps, the Ring Air is positioned well for future enhancements.

Ultrahuman Ring Air App Front Page with no subscription
Ultrahuman Ring Air App 2 Showing Workout Type

Technical Details

Feature Detail
Brand Ultrahuman
Model Name Ultrahuman Ring Air
Included Components Ring Air, Charging Dock, USB Cable, Sizing Kit, Information Booklet
Wearable Computer Type Smart Ring
Price $350 (No Subscription Required)
Weight 2–3 g (varies by ring size)
Battery Life Up to 6 days per charge
Charge Time About 2 hours
Health Features Sleep Tracking, HRV, Resting HR, VO₂ Max, Temperature Monitoring
Additional Features Movement Alerts, Stress Rhythm, Dynamic Recovery, Sleep Efficiency Prompts
Materials Titanium (Various Finishes)
Water Resistance IPX8
Connectivity Bluetooth, App Integration with iOS & Android
Warranty & Support Standard Warranty (check Ultrahuman website for details)

Additional specs based on Amazon.com data combined with my personal experience


Drawbacks of the Ultrahuman Ring Air

Limited Battery Life:

  • Unlike my Smart running watch—which lasts for weeks—the Ring Air only lasts about four days per charge.
  • Although it takes roughly two hours to fully charge, you need to get into the habit of charging it more frequently.

Sizing Issues:

  • I opted for a slightly loose fit to avoid an overly tight ring, but this has occasionally caused the ring to fall off.
  • A snug, well-fitting ring is crucial to prevent it from coming off during daily activities.

How the Ultrahuman Ring Air Compares to Other Smart Rings

r
Feature Oura Ring Gen 4 Oura Ring Gen 4 RingConn Smart Ring Gen 2 RingConn Smart Ring Gen 2 Ultrahuman Ring AIR Ultrahuman Ring AIR Jakcom R5 Smart Ring Jakcom R5 Smart Ring
Best For Sleep Tracking, Wellness Insights Stress & Fitness Tracking (No Subscription) Athletes, Metabolic Health Tracking Budget, Basic NFC & RFID Features
Subscription Required? ✅ Yes (for advanced insights) ❌ No ❌ No ❌ No
Sleep Tracking ✅ Best-in-Class AI Sleep Analysis ✅ Tracks sleep stages, but no AI insights ✅ Tracks recovery & metabolic rate ❌ No sleep tracking
Battery Life 🔋 Up to 7 days 🔋 Up to 12 days 🔋 Up to 6 days 🔋 7+ days
Health Features 💙 AI Sleep, HRV, SpO₂, Readiness Score 💙 Stress, HRV, Fitness Recovery 🔥 VO2 Max, Metabolic Tracking, Recovery 🔄 Basic Step Tracking, NFC Payments
Water Resistance 🌊 IP68 (328 ft) 🌊 IPX8 🌊 IPX8 💦 Splash-resistant
Materials 🛡️ Titanium 🛡️ Titanium Alloy 🛡️ Lightweight Titanium 🔧 Stainless Steel & Ceramic
On-Ring Display ❌ No, App-Based ❌ No, App-Based ❌ No, App-Based ✅ Yes, Small LED Display
Compatibility 📱 iOS, Android 📱 iOS, Android 📱 iOS, Android 📱 Android, Some iOS Features
Price Range 💰 $$$ (Premium) 💰 $$ (Mid-Range) 💰 $$$ (Premium) 💰 $ (Budget)
Ultrahuman Ring Air Outside Showing its sheen
Ultrahuman Ring Air: How it looks Inside

Comparing My Experience with Other Reviews

I can’t compare the data points directly to the Oura Ring, but one very big feature that wins for Ultrahuman is the lack of a subscription fee. The ring costs $350 but comes with no subscription fees, whereas Oura and others require a monthly subscription to view the data. Other reviewers have also pointed out that the Ultrahuman Ring Air is surprisingly light and comfortable for something that packs so many metrics into a tiny form factor. While battery life isn’t as long as some fitness watches, the trade-off seems fair for those who prioritize advanced sleep tracking and real-time insights over wearing a bulky device on their wrist.


Final Thoughts

As someone who loves data, especially running-related metrics, I’ve really been enjoying the Ultrahuman Ring Air. It forces you to look at your daily routine and take a deep dive into the impact it has on your overall well-being and recovery. I know getting to bed early, or at least at a similar time every night, is going to be beneficial, but when you see the metrics on bright red and green charts, it’s much easier to enforce the habit.

For some people, this data might be overwhelming, but if you’re a nerdy runner who loves to see how numbers correlate with how you’re feeling, this is a really great option — especially since there’s no subscription fee required.

🚀 Ready to give the Ultrahuman Ring Air a try?

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My colleague has a different opinion. She believes in the Oura Gen 4. Click here to read her review


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