Actionable health tracking smart ring. A comfortable and sleek smart ring that tracks your sleep, movement and recovery trends, nudging you to make healthier choices every day. The Ring lasts up to 6 days on a complete charge.*
Q: What are the dimensions of the ring?
A: The ring has a depth, width, and height of 0.75 inches.
Q: What is the ring's water resistance depth?
A: The maximum depth of water resistance for the ring is 328 feet.
Q: What operating systems are compatible with the ring?
A: The Ultrahuman Ring AIR is compatible with the Android operating system.
Q: What kind of health data does the ring track?
A: The ring tracks your sleep, movement and recovery trends.
Q: What is the battery capacity of the ring?
A: The battery capacity of the ring is 24 milliampere hours.
Q: What kind of health data does the ring track?
A: This smart ring tracks your sleep, movement and recovery trends.
Q: Is the ring compatible with Android devices?
A: This ring is compatible with Android devices.
Q: What type of charging interface does the ring use?
A: The charging interface used by the ring is USB-C.

Actionable health tracking smart ring. A comfortable and sleek smart ring that tracks your sleep, movement and recovery trends, nudging you to make healthier choices every day. The Ring lasts up to 6 days on a complete charge.*

Actionable health tracking smart ring. A comfortable and sleek smart ring that tracks your sleep, movement and recovery trends, nudging you to make healthier choices every day. The Ring lasts up to 6 days on a complete charge.*

Oura Ring 4 brings you closer to what matters most — your health. With an updated all-titanium design, this smart ring features Smart Sensing, a new sensing platform that doesn’t just measure your biometrics but also adapts to you. It provides insights into over 50 biometrics including sleep, readiness, activity, heart health, stress, metabolic health and women’s health.

Actionable health tracking smart ring. A comfortable and sleek smart ring that tracks your sleep, movement and recovery trends, nudging you to make healthier choices every day. The Ring lasts up to 6 days on a complete charge.*
| Pros for Ultrahuman - Ring AIR - Smart Ring - Size Before You Buy - Size 11 - Aster Black - (2023) | |||
|---|---|---|---|
| There were no pros for this product— | Battery Life, Comfort, Data Accuracy, Overall Performance, Design | Overall Performance, Comfort, Battery Life, Data Accuracy, Sleep Tracking | There were no pros for this product— |
| Cons for Ultrahuman - Ring AIR - Smart Ring - Size Before You Buy - Size 11 - Aster Black - (2023) | |||
| There were no cons for this product— | Connectivity | Connectivity, Size, Scratch Resistance | There were no cons for this product— |
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
I’ve really been enjoying my Ultrahuman Ring. It’s sleek, comfortable, and the insights it gives on recovery, movement, and metabolic health have been incredibly motivating. I especially love how it integrates so seamlessly with the app and how detailed the metrics are. That said, I’ve noticed the sleep tracking isn’t always accurate. It sometimes logs time I’m just lying down or watching TV as actual sleep, which can throw off my sleep score and recovery data. I’d love to see improvements in how it distinguishes between rest and real sleep. Overall, though, it’s been a great addition to my health routine—and I’m excited to see how it evolves with future updates.
This review is from Ultrahuman - Ring AIR - Smart Ring - Size Before You Buy - Size 6 - Bionic Gold - (2023)
Posted by FlorenciaVO
I’ve now had the Ultrahuman ring for a few weeks and I wish I’ve had this my whole life! The first thing I noticed is how lightweight the ring is, you really don’t even notice you’re wearing it. It matches the rest of my gold jewelry and really looks like a simple gold ring. It's very durable and is yet to show any sort of wear and tear. The layout of the app is easy to follow and organized. It is practically identical to its competitors but much cheaper and offers additional features. My favorite thing about the ring is that you can initiate the tracking of workouts, and it will appear on your phone. This is super helpful when I want to compare the workouts I do to my total activity for the day. I’ve also enjoyed tracking my sleep and circadian rhythm. These two features, along with the ability to track your caffeine window, have all helped me build a routine and feel more energized as a result. The battery life is impressive, I can go almost a week without having to charge it. And when I do need to charge it, it reaches 100% battery quickly. Overall, I will be recommending this ring to many of my friends with different lifestyles. This ring is the best way to track your health and wellness and avoids looking like a distinct piece of wearable technology.
This review is from Ultrahuman - Ring AIR - Smart Ring - Size Before You Buy - Size 8 - Bionic Gold - (2023)
Posted by Nina
I’ve been using the Ultrahuman Ring and I absolutely love it! It’s sleek, super comfortable, and provides incredibly helpful insights into my sleep, recovery, heart rate, and daily activity. It’s helped me become much more aware of how my body responds to stress, rest, and movement. The app is beautifully designed and easy to understand not just data, but real guidance. It’s become a part of my everyday wellness routine, and I can genuinely say it’s worth every penny. As a woman going through menopause, I do wish the Ultrahuman Ring would offer more features specifically tailored for women in this stage of life like tracking hot flashes, hormonal sleep disruptions, and mood variations. That would make an already amazing product even more powerful and inclusive. Still, I highly recommend the Ultrahuman Ring to anyone serious about improving their health and well-being. It’s a game changer! Taciana Alcoforado
This review is from Ultrahuman - Ring AIR - Smart Ring - Size Before You Buy - Size 7 - Bionic Gold - (2023)
Posted by TacianaA