SKU: 40816673281

Ultrahuman Ring AIR Matte Grey

$12824.55 $14249.50
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USA
  • USA
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Ultrahuman Ring AIR Matte GreyOverview The Ultrahuman Ring AIR is the worlds lightest and most comfortable smart ring, weighing just 2. 4 grams and crafted from space grade titanium with a scratch resistant tungsten carbide carbon coating. It delivers a complete health tracking experience with no monthly subscription fee, allowing you to pay once and own your data for life. All Features The ring offers a comprehensive Sleep Index that helps you understand REM, deep sleep, light

Overview

The Ultrahuman Ring AIR is the world’s lightest and most comfortable smart ring, weighing just 2.4 grams and crafted from space-grade titanium with a scratch-resistant tungsten carbide carbon coating. It delivers a complete health tracking experience with no monthly subscription fee, allowing you to pay once and own your data for life.

All Features

The ring offers a comprehensive Sleep Index that helps you understand REM, deep sleep, light sleep, and wakefulness stages. Its Movement Index tracks steps, calories, workouts, and non-exercise activity to give a full picture of daily movement. The Dynamic Recovery Score provides real-time insights based on heart rate variability, heart rate, and skin temperature. It also includes women’s health features such as cycle tracking and pregnancy mode through PowerPlugs. Stress tracking is enhanced with circadian rhythm-aware analysis, while the Workout Mode supports 20+ sport modes with heart rate monitoring. Additional smart features include the Stimulant Window Recommender for personalized caffeine timing and Circadian Phase Alignment for optimizing sleep schedules through temperature minima tracking.

Tech Specs

The ring offers up to 6 days of battery life with a full charge completed in 2 hours. It has a water resistance rating of up to 100 meters and connects via Bluetooth Low Energy 5.0. It is compatible with iOS 15 and above as well as Android 6 and above. The ring is available in sizes 5 to 14 and is supported by an app available in 15+ languages.

Warranty Information: This product comes with an official manufacturer warranty provided directly by Ultrahuman. As an authorized Ultrahuman partner, we facilitate the sale and support process, while all warranty claims, servicing, and replacements are handled according to Ultrahuman's official warranty policy.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40816673281

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4.6 ★★★★★
Based on 10 reviews
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Product Reviews
D
Verified Purchase
Darko
Alexandria, US
★★★★★ 5
Warm feet and ankles > everything
Size: 10-11, Color: Red/Black Check
So, I know the foam is going to wear out quick on these, but they are so warm I dont even care. I will update when they start getting beat up. But so far these are great. The soles on these arent the best. Its coushioned now, but even so my foot hangs off it. BUT, it is thick material and its keeping my feet and more importantly my ankles warm. Thats why I bought these. These isnt much on the bottoms to keep you from slipping hut what they have seems to be alright for now on hardwood floors. They fit true to size and are nice and stretchy, just beware the sole is a bit slim. For example my pinky toe hangs off it on both sides almost fully. Still a 7/10 would recommend for lounging around the house.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
C
Verified Purchase
CSI AJ
Cuba, US
★★★★★ 4
Warm, comfortable booties
Size: 12-13, Color: Red/Black Check
I would give these booties a 5 star because they are soft, warm, comfortable, high on my ankle and a color I appreciate. They are easy to slip on NOW. I say "NOW" because I have a deformed foot due to being broken. That foot was hard to get the bootie on. After 1 try in which some of the stitching came out; it's easy to put on. The stitching came out far to easily. There are 3 lines of stitching. One line between the sole and 1st layer of polar fleece. That line has had no problem. The other 2 lines have each come out abt 3 inches. I got size 12
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
R
Verified Purchase
R Secrest
Lowell, US
★★★★★ 5
Very Warm and Comfortable
Size: 12-13, Color: Red/Black Check
Love these. Just like walking on a cloud. They are very warm. Note there is no L or R, fits either foot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
G
Verified Purchase
Geobub
Whiting, US
★★★★★ 3
Seams Separate Quickly
Size: 8-9, Color: Red/Black Check
They fall apart. The seams are terrible and almost immediately separate. Although they are warm and comfortable until stuff comes through the separated seams.
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Reviewed in the United States on March 29, 2026
D
Verified Purchase
David Pritchett
Lake Worth, US
★★★★★ 5
Meeting my expectations....
Size: 14-15, Color: Grey/White Check
I am a male with pretty large feet (Mens size 14US) and wanted some very warm slippers to wear around the house. I have nerve issues in my toes and if I don't keep my feet very warm they start to hurt. I wanted something both comfortable and warm. I received these a few days ago and so far they have done a great job at keeping my feet warm. The linings are thick and fluffy and the bottoms feel like they have a memory foam inner sole in them. The tops can either be worn up or rolled down. The actual soles are a soft leather-like material. They are thicker than normal cloth, but not hard like rubber soled slippers (I actually wanted something that was more of a slipper and less of a "shoe"). The only down side is that they don't really seem to have a left and right to them (both slippers seem identical), and for awhile no matter how I wore them, they felt a bit like they were on the wrong feet. However, they seem to have formed themselves to my feet and now (through wearing them) it definitely feels like there is a left and a right. I don't know how long these will last, but they were not expensive, so if I get a few months of wear from them, I will be happy and will just order another pair when these wear out. They aren't the most attractive slippers in the world, but they aren't horrible looking and they are very functional.
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Reviewed in the United States on February 24, 2025

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