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Product guide

Ultrahuman Ring AIR Smart Ring

The ULTRAHUMAN Ultrahuman Ring AIR is a smart ring for sleep, activity and health tracking, with app-based insights and standard features listed without a subscription. Its fit is size-specific, so the listing recommends using the Ultrahuman sizing kit before ordering.

At a glance

Tracks sleep stages, activity, stress, heart rate, HRV, skin temperature and recovery through the app, according to the listing.
Standard app features are listed without a subscription.
Listing claims up to 6 days of battery life and a 2-hour charge time.
Size-specific fit. The listing recommends the Ultrahuman sizing kit, with ring sizes stated as 5-14.

Price

£199.00Save 40%

Reference price: ~~£329.00~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Combines sleep, activity and several health metrics in a ring rather than a wrist-worn tracker.
The app's standard tracking features are stated to require no subscription.
The listed 6-day battery life may suit buyers who prefer less frequent charging than daily.

Cons

No GPS is listed, so it is not presented as a standalone GPS tracker.

Technical specifications

22 specifications

Identity
Brand	ULTRAHUMAN
Model	Ultrahuman Ring AIR

Tracking and display
Screen technology listed	LED
Listed features	Activity Tracker, Lightweight, Multisport Tracker, Sleep Tracker
Metrics listed	Blood Oxygen (SpO2), Body Temperature, Heart Rate, Sleep Duration, Stress
GPS	No GPS

Connectivity and controls
Wireless connection	Bluetooth
Control method	Ultrahuman App
Compatible phone models	iPhones running iOS 15 or later, Android devices running Android 6 or later

Power and battery
Battery life listed	6 days
Battery capacity	24 Milliamp Hours
Battery type	Lithium Polymer
Charge time	2 Hours

Dimensions and installation
Form factor	Round
Dimensions listed	22 x 18 x 15 millimetres
Weight listed	400 Grams
Colour	Aster Black

Materials and protection
Case material	Titanium
Water resistance listed	Water Resistant
Water resistance depth	100 Metres
Waterproof rating	IPX8

Computing specifications
Storage listed	0.5 MB

What to know before buying

Listing details to confirm

The listing recommends buying the Ultrahuman sizing kit first because Ring AIR sizes differ from standard ring sizes. It states that sizes 5-14 are available. The listed weight of 400 Grams appears unusually high for a ring, while the dimensions are 22 x 18 x 15 millimetres. Treat these as listing details to confirm rather than settled expectations. The listed LED display type is also unclear for a smart ring.

What’s in the box

Included

1 x Black Ring

Who is it for?

A good fit for

People who want sleep, activity and health tracking in a ring with app-based insights.
Buyers seeking standard tracking without an ongoing subscription.
Users with a compatible iPhone or Android phone who are willing to use the Ultrahuman app.

Less suited to

Buyers who need built-in GPS tracking.
Anyone who wants to order a ring size without first checking the brand-specific sizing guidance.

Ultrahuman Ring AIR Smart Ring · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 1,100 ratings

5 stars66%66%
4 stars12%12%
3 stars5%5%
2 stars6%6%
1 star11%11%

Customer feedback highlights battery life, data quality, health tracking and sleep insights, and customers also value the no-subscription model. These reports are relevant to buyers looking for ongoing app-based tracking, but reliability and connectivity receive mixed feedback, as does value for money. The listing's battery-life claim is 6 days, though customer perceptions do not establish a guaranteed runtime or consistent connection.

Positive themes

Customers appreciate the battery life, data quality and health tracking.
Customers value the app's detailed health information, sleep insights and no-subscription model.

Mixed feedback

Feedback on reliability is mixed, with some customers reporting adequate performance for the first few weeks.
Connectivity and value for money receive mixed feedback.

Frequently asked questions

Does the Ultrahuman Ring AIR require a subscription?

The listing says standard features in the Ultrahuman app, including sleep, activity, stress, heart rate, HRV, skin temperature and recovery, are available without a subscription.

What phones are listed as compatible?

The listing specifies iPhones running iOS 15 or later and Android devices running Android 6 or later.

Should I check sizing before ordering?

Yes. The listing says Ring AIR sizes differ from standard ring sizes and recommends using the Ultrahuman sizing kit before purchase.

Does the ring have GPS?

The specifications state No GPS.