Name: Ultrahuman Ring AIR Sizing Kit - Choose from Sizes 5 to 14
Brand: Ultrahuman
SKU: 3Q98RARLYLUV
Price: 9.99 CAD
Availability: InStock
Rating: 4.5 (1152 reviews)

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Ultrahuman Ring AIR Sizing Kit - Choose from Sizes 5 to 14

Ultrahuman sizes differ from standard rings, making this kit essential for a perfect fit.

Get The Right Fit

Test mock rings from sizes 5 to 14 to find your most comfortable size.

Ten Sizes To Try

True-to-life colours let you visualize how each finish looks on your hand.

See Colours In Person

Finding the right fit ensures the ring sensors track your sleep and activity correctly.

Get Accurate Health Data

<ul><li>Accurate Sizing: Includes 10 high-grade mock rings to determine the perfect Ring AIR size, which differs from standard ring sizes.</li><li>Size Range Selection: Offers 10 sizes from 5-14 for the Ring AIR.</li><li>Color Visualization: Provides true-to-life colors on the sizing kit to help visualize preferred Ring color.</li><li>Optimal Fit Guidance: Recommends wearing on the index, middle, or ring finger for optimal comfort and advanced sleep tracking, with a proper fit ensuring the ring does not rotate freely.</li></ul>

<ul><li>Ultrahuman Ring sizes differ from standard ring sizes.</li><li>Purchase a sizing kit first to get the perfect ring AIR size.</li><li>Ring AIR is available in 10 sizes from 5-14.</li><li>For optimal comfort and advanced sleep tracking, we recommend you wear the Ultrahuman Ring AIR on your index, middle, or ring finger.</li><li>You will get highest data accuracy and optimal comfort with a properly fitting Ultrahuman Ring.</li><li>Here are a few simple ways to assess this — If you rotate the ring on your finger, it should not rotate freely.</li></ul>

Ring Size

Brand

Color

Is Resizable

The Ultrahuman Sizing Kit comes with 10 high-grade mock rings to help you find the perfect Ring size. It is the only Sizing Kit that comes with true-to-life colors to help you visualize your preferred Ring color.

Gender

Material

Assembled Product Dimensions (L x W x H)

Universal Product Code (UPC check)

Walmart Item #

fulfillment

title_shipToHome_date_delivery

Sleep Tracking

Battery Life

Health Insights

Tracking Accuracy

Comfort

Health Data

App Experience

Design

Shopping Experience

Everyday Use

Weight

Quality

Features

Caffeine Tracking

Instructions

Usefulness

Style

Value For Money

Workout Tracking

App Ease Of Use

Can last several days, but may drain quickly in certain modes.

Made with durable materials and a sleek design.

[This review was collected as part of a promotion.] Great device for those who are interested to track daily habits and especially when going to gym and tracking training goals. Can easily connect to my phone, easy to use when it comes to tracking heart rate, blood flow. Besides helps location capture and additional biomaker data. It's perfect tool to track your health and understand it's needs. Lightweight and great design

Good tracking

Ultrahuman

[This review was collected as part of a promotion.] I used many other wearables in the past, but was impressed by the Ultrahuman Ring Air. A big plus for me was its affordable, subscription-free price. Initially, it was the practical form factor that attracted me, and pairing capabilities with the most popular smart watches and iOS and Android phones. Easy to wear, fashionable, super light, and comfortable to wear all the time. No need to remove around water, thanks for being waterproof. I discovered a new world of advice on better health and well-being. Impressed by the sleep, stress, cardio reporting, AFIB, recovery, and brain age, stress management data, and amused by the accurate caffeine window. Not perfect but improving daily, with WhatsApp 24/7 customer service when needed.

Got other wearables before

[This review was collected as part of a promotion.] Excellent product. I am using for almost 2 years and had huge positive impact over my health and knowledge in different points about sleep and hygiene in terms of my sleep.

Very profesional

[This review was collected as part of a promotion.] I bought this several months ago and it's amazing. I also work night shift and it's able to accommodate to that.

It's awesome!

[This review was collected as part of a promotion.] Earlier I was using Apple Watch which was cumbersome to wear at all time especially during sleep and charging daily was an issue .Since I have started using Ultrahuman I am happily tracking my daily activities especially sleep and calories with a good battery life.the best feature is the alarm clock which will wake you up according to your REM sleep which will make you feel fresh on getting up. It correctly calculated my sleep deficits,sun exposure,heart rate variability and dynamic recovery .. all of which is required to be monitored to stay fit in this stress driven world .Ultrahuman is amazing

Best to stay fit In stress driven era

[This review was collected as part of a promotion.] I received the Ultrahuman Ring as a birthday gift in May 2025 and have been using it ever since. I'm really enjoying it — the sleep tracking is quite accurate, and it's become a regular part of my daily routine.

Overall, I'm very happy with the device. The only downside is that the app sometimes lags when launching from idle, but it's a minor issue compared to the overall functionality.

All good!

[This review was collected as part of a promotion.] I've had my Ultrahuman Ring for almost a year now, and I'm still really enjoying it. It's given me a lot of insightful data that's helped me better understand my sleep patterns, identify foods my body doesn't agree with digestively, and even recognize when my immune system might be compromised. The insights have made me much more aware of how my body responds to different habits and routines. And one of the best parts is that all of this comes without a monthly subscription.

A Year Later and Still Impressed

[This review was collected as part of a promotion.] Bought this ring last summer and I have been thoroughly enjoying it. I love the insights I'm getting and the ability to set tangible goals.

Helpful features

[This review was collected as part of a promotion.] First of all, having no subscription for your device is something that made me end up with Ultrahuman. I've purchased the ring 3 months ago, but already had a replacement due to a faulty battery. 

The tracking capabilites regarding excersises and doing basic stuff like walking seems to be all over the place, while the sleep tracking and all the insights (caffein window for example) that the app gives based off of those metrics are exactly what i was looking for. The design and the sleep tracking was the inital reason i bought the device and in those areas it meets my expectations.

Overall, a nice tracking device thats stylish as well (and have no distracting haptic feedback or screens!) but fitness tracking still has room for improvement.

A ring with the potential to be the best

[This review was collected as part of a promotion.] Stopped sending data to my app after about 2 months of use and the battery dies after a few hours - doesn't last a full night.  I tried resetting it, followed all of the prompts, but nothing will fix it. Basically completely useless and a total waste of money.

Stopped working after 2 months

Ultrahuman Ring AIR Sizing Kit - Choose from Sizes 5 to 14 showing ten high-grade mock rings in true-to-life colors to visualize Ring AIR color and fit; a compact fit guide for sizes 5–14 with recommendation to wear on index, middle or ring finger for optimal comfort, often used to preview band color for styling.