Does the Ultrahuman Ring Air need a subscription?

No. Sleep, heart rate, HRV and temperature tracking work without a monthly fee, unlike the Oura Ring's paid tier.

How does it compare with the Oura Ring?

The Ring Air is lighter and has no subscription. Oura's app and sleep insights are generally considered more polished.

How long does the battery last?

Ultrahuman rates it at up to six days. Many owners report closer to three or four days with continuous tracking.

Can I wear it for workouts?

Yes, it has a workout mode, but heart rate during hard exercise is less accurate than a chest strap.

What comes in the box?

The ring, a wireless charging base and a USB-C to USB-C cable. A power adapter is not included.

How do I pick the right size?

Fit matters because the ring cannot be resized. Use the sizing kit before ordering and choose a size that fits your index or middle finger snugly.

Where is the Ultrahuman Air Smart Ring Silver Size 9 cheapest?

At PayMore Rockville, for $89.99, 74% under what the other stores charge, as of our latest check.

What do buyers say about the Ultrahuman Air Smart Ring Silver Size 9?

Rated 3.8 out of 5 from 1,000 ratings.

Where can I buy the Ultrahuman Air Smart Ring Silver Size 9?

9 stores we checked sell it, including Verizon, PayMore Rockville, Amazon, eBay, Dressinn.com.

Ultrahuman Air Smart Ring Silver Size 9 Price History: $89.99

What reviewers say

3.8 / 51,000 ratings

Owners like the light feel and the sleep and recovery scores, and many value the lack of a subscription. Complaints center on the app, syncing and battery life, and on heart-rate accuracy during exercise.

What people mention

ComfortPraisedOwners say the 2.4-gram ring disappears on the finger, day and night.
Sleep trackingPraisedSleep stages and the recovery score are the features most owners use and trust.
AppCriticisedReviewers report sync failures and a cluttered app that undercuts the hardware.
BatteryMixedSome get several days per charge; others say it drains faster than advertised.
Workout accuracyCriticisedHeart rate during exercise is called less reliable than a chest strap.

From Dressinn.com

Ultralight smart ring weighing only 2.4 grams, the lightest smart ring on the market
Sleek, ultra-thin, notch-free design with a soft inner shell for all-day and all-night comfort
Tracks sleep stages (deep, REM, light, awake), movement, heart rate, HRV and skin temperature
Sleep Index, Movement Index and Recovery Score help you understand recovery and wellbeing
Dedicated workout mode tracks heart rate and intensity during exercise
Stimulant Window feature suggests favorable times for caffeine to boost productivity

Sizes: 9
Materials: Tungsten carbide and carbon coating for scratch resistance
Guarantee: Official brand warranty
Returns: Fast and easy returns within 30 days
Shipping: Free shipping; no additional delivery charges
In the box: USB-C to USB-C cable, Wireless charging base, Ultrahuman Ring AIR

About the Ultrahuman Air Smart Ring Silver Size 9

The Ultrahuman Air is a smart ring in silver, size 9. It weighs 2.4 grams. It has a thin, notch-free design with a soft inner shell. The body is tungsten carbide with a carbon coating for scratch resistance.

It tracks sleep stages (deep, REM, light and awake), movement, heart rate, HRV and skin temperature. A Sleep Index, Movement Index and Recovery Score summarize recovery and wellbeing. A workout mode tracks heart rate and intensity during exercise. The Stimulant Window feature suggests favorable times for caffeine.

This unit is used and in good condition, with some scratches or scuffs from everyday use. It has been tested and is fully working.

Model: Ultrahuman Ring Air
MPN: UHRA-RT-09
Color: Silver
Ring size: 9
Weight: 2.4 grams
Material: Tungsten carbide with carbon coating
Heart rate: Built-in heart rate monitor
Tracking: Sleep stages, movement, heart rate, HRV, skin temperature
Scores: Sleep Index, Movement Index, Recovery Score
Other features: Workout mode, Stimulant Window
Condition: Used, good; some scratches or scuffs; tested and fully working
Warranty: No manufacturer warranty
In the box: Ultrahuman Ring Air, wireless charging base, USB-C to USB-C cable, original box