--- product_id: 668286864 title: "Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker" brand: "ultrahuman" price: "¥1750" currency: JPY in_stock: false reviews_count: 5 url: https://www.desertcart.jp/products/668286864-ultrahuman-ring-air-smart-ring-health-tracker-size-first-ultrahuman store_origin: JP region: Japan --- # 6-day battery life 2-hour fast charging Advanced multi-stage sleep tracking Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker **Brand:** ultrahuman **Price:** ¥1750 **Availability:** ❌ Out of Stock ## Summary > 💍 Elevate your health game with the ring that knows you best. ## Quick Answers - **What is this?** Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker by ultrahuman - **How much does it cost?** ¥1750 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/668286864-ultrahuman-ring-air-smart-ring-health-tracker-size-first-ultrahuman) ## Best For - ultrahuman enthusiasts ## Why This Product - Trusted ultrahuman brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Day Movement Index:** Monitor steps, workouts, calories & non-exercise energy to keep your metabolism active. - • **Dynamic Recovery Score:** Real-time recovery tracking using HR, HRV & skin temperature for smarter lifestyle decisions. - • **Precision Sleep Insights:** Track REM, Deep, Light Sleep & Wakefulness with actionable tips to optimize your rest. - • **Space-Grade Titanium Comfort:** Ultra-thin, notch-less design crafted for all-day wearability and sleek minimalism. - • **Women’s Cycle & Pregnancy Tracking:** Personalized insights for every phase of the menstrual cycle and pregnancy trimesters. ## Overview The Ultrahuman Ring AIR is a sleek, titanium smart ring designed for millennial professionals seeking seamless health tracking. It offers advanced sleep stage monitoring, continuous heart rate and movement tracking, and personalized recovery scores. With up to 6 days of battery life on a quick 2-hour charge, plus specialized features for women’s health and circadian rhythm alignment, it’s a subscription-free, low-EMF wearable that fits effortlessly into your lifestyle. ## Description The cutting-edge wearable comes with a new, more compact form that is notch-less, ultra-thin, and boasts a smooth inner shell, ensuring unparalleled comfort throughout the day and night. Review: Impressive! - I love this ring! It’s comfortable, and provides detailed and acurate information! What I love most about it is that it is subscription free, and it has the lowest EMF exposure and literally cancels it out once the phone is in airplane mode or Bluetooth is switched off, yet it still collates the data and syncs when the device settings are switched back on. The only thing I’d like to see changed is the fact that you have to put the ring back on the charger to take off of airplane mode, this feels unnecessary. Especially when you have to do this daily, if you prefer to monitor sleep while reducing emf exposure. The only thing I’d change is the fact that you have to put it on the charging deck to take it off airplane mode. There may be a good reason for this, but it does seem unnecessary and is a pain to do each day. Review: Disappointing, wouldn’t recommend if you are active - Had the ring about 10 months and generally disappointed. I don’t think it’s a good investment if you are sporty, far better to stick with a sports watch. It is really poor and registering movement. I have tried it alongside a Garmin watch for 3 months and undercounts steps by up to 40%. Really poor at picking up heart rate if you are exercising. Cycled earlier, hit 155bpm, ring recorded max of 135bpm I like the health stats on sleeping and stress, really detailed. Though ring randomly doesn’t record any sleep stats about 1-2 days a month. I bought because I didn’t want to wear sports watch all the time when I have other decent watches, and ring is unobtrusive. But I wouldn’t recommend if you are sporty like me, fine if you just want to record sleep/stress ## Features - SIZE FIRST - Ultrahuman Ring sizes are different from standard ring sizes. Purchase Ultrahuman Sizing Kit first to get the perfect Ring AIR size. Ring AIR is available in 10 sizes from 5-14. - THE RING OF YOUR DREAMS - Ultrahuman Ring AIR is the perfect sleep tracker ring. Along with insights on all your sleep stages — REM, Deep Sleep, Light Sleep and Wakefulness, get actionable steps to improve sleep so you're ready for the day. - DESIGNED TO KEEP YOU MOVING - The 'Movement Index' is designed to keep you moving all day for optimum glucose metabolism, and to increase your non-exercise energy usage through the day. With this all-in-one activity and fitness tracker, you can track steps, workouts and calories for insights into your all-day activity. All features work together seamlessly, to make sure you get the most out of the smart ring. Workout Tracking is now easy, with a dedicated Workout Mode that tracks Heart Rate during workouts — you can get insights into your cardiovascular response, track intensity levels, and make informed decisions to improve your fitness outcomes. - ENHANCED RECOVERY - Ring AIR is geared to help you recover better, with focused recovery tracking. The 'Dynamic Recovery Score' is derived from a blend of key metrics including heart rate monitoring, Heart Rate Variability (HRV) and skin temperature that track not only sleep but also every aspect of your lifestyle, giving you actionable insights. Designed to evolve with you, Dynamic Recovery will update in real-time when you take naps, sauna sessions or any contributors to enhance your recovery. - FUNCTIONALLY AESTHETIC - The Ultrahuman Ring AIR is forged with space grade titanium. Meticulously designed for enhanced comfort, this sleek device combines minimal form factor with precise performance, enabling users to effortlessly monitor key health indicators such as Sleep, Movement, Heart Rate (HR), Heart Rate Variability (HRV), and skin temperature. - WOMEN'S HEALTH - RING AIR incorporates cycle-based scores that uniquely characterise women’s physiology. With the Cycle Tracking PowerPlug, women get insights and personalised guidance for every phase of their cycle (Menstruation, Ovulation, Follicular, and Luteal Phases). With the Pregnancy Mode PowerPlug, expecting mothers get tailored insights throughout each trimester. With these, and more personalised features on the way, Ring AIR is undoubtedly a smart ring for women as well. - A UNIQUE APPROACH TO STRESS - A gamechanging perspective on stress, it considers the variations in your Heart Rate (HR), Heart Rate Variability (HRV), and Resting Heart Rate (RHR) against the backdrop of your circadian rhythm. - THE POWER OF UPTO 6 DAYS IN 2 HOURS - The Ultrahuman Ring AIR has a powerful battery that lasts upto 6 days, on a 2 hour charge. - CIRCADIAN PHASE ALIGNMENT - Circadian Rhythms are 24-hour cycles that regulate the body's sleep-wake cycle and other essential functions. The Circadian Alignment PowerPlug helps you align your circadian rhythms with nature, for optimum health. - AVAILABLE IN 15+ LANGUAGES - The Ultrahuman App is now available in English, French, Thai, Chinese, Malay, Indonesian, Czech, Japanese, Korean, German, Spanish, Italian, Swedish, Portuguese, Russian & more. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D4QV8Y8W | | Band Material Type | Titanium | | Battery Capacity | 24 | | Battery Charge Time | 2 Hours | | Box Contents | Type C to Type C Cable, Ultrahuman Ring AIR, Wireless Charging Dock | | Brand Name | ULTRAHUMAN | | Clasp Type | Buckle | | Closure Type | Buckle | | Colour | Raw Titanium | | Communication Feature | Bluetooth | | Compatible Devices | Smartphones and potentially other devices in the future | | Compatible Phone Models | Compatible with iOS and Android devices | | Connectivity Technology | Bluetooth | | Controller Type | Ultrahuman App | | Customer Reviews | 3.5 out of 5 stars 14 Reviews | | Display Type | OLED | | GPS Geotagging Functionality | No GPS | | Global Trade Identification Number | 08906184870007 | | Human Interface Input | Unknown | | Item Dimensions | 7.5 x 14 x 18 Centimeters | | Item Type Name | Smart Ring | | Item Weight Unit of Measure | 2.86 Grams | | Language | English | | Manufacturer | Ultrahuman Healthcare PVT LTD | | Memory Storage Capacity | 0.5 MB | | Metrics Measured | Sleep Duration, Heart Rate, Body Temperature | | Model Name | Ultrahuman Ring AIR | | Model Number | UHRA-RT-08-UK | | Operating System | Ultrahuman App | | Product Features | Heart Rate Monitor, Sleep Monitor gb | | Resolution | 240 x 240 | | Screen Size Unit of Measure | 0.96 Inches | | Shape | Round | | Special Feature | Heart Rate Monitor, Sleep Monitor gb | | Sport Type | Cycling, Fitness, Football, Multi-Sports, Running | | Style Name | Ultrahuman Ring Air | | Supported Application | Sleep Monitor | | Target Audience | Unisex Adults | | Water Resistance Depth | 1 Metres | | Water Resistance Level | Not Water Resistant | | Waterproof Rating | IPX8 | | Wearable Computer Type | Smart Ring | | Wireless Communication Standard | Bluetooth | | Wireless Compability | Bluetooth | ## Product Details - **Battery Capacity:** 24 - **Connectivity Technology:** Bluetooth - **Memory Storage Capacity:** 0.5 MB - **Operating System:** Ultrahuman App - **Special Feature:** Heart Rate Monitor, Sleep Monitor gb ## Images ![Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker - Image 1](https://m.media-amazon.com/images/I/71GMw7qXBqL.jpg) ![Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker - Image 2](https://m.media-amazon.com/images/I/71MzzeSaKOL.jpg) ![Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker - Image 3](https://m.media-amazon.com/images/I/71oqcU-VulL.jpg) ![Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker - Image 4](https://m.media-amazon.com/images/I/71Iy2WIeGzL.jpg) ![Ultrahuman Ring AIR-Smart Ring Health Tracker, Size First with Ultrahuman Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker - Image 5](https://m.media-amazon.com/images/I/81ApR4ATduL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Impressive! *by L***7 on 16 August 2025* I love this ring! It’s comfortable, and provides detailed and acurate information! What I love most about it is that it is subscription free, and it has the lowest EMF exposure and literally cancels it out once the phone is in airplane mode or Bluetooth is switched off, yet it still collates the data and syncs when the device settings are switched back on. The only thing I’d like to see changed is the fact that you have to put the ring back on the charger to take off of airplane mode, this feels unnecessary. Especially when you have to do this daily, if you prefer to monitor sleep while reducing emf exposure. The only thing I’d change is the fact that you have to put it on the charging deck to take it off airplane mode. There may be a good reason for this, but it does seem unnecessary and is a pain to do each day. ### ⭐⭐⭐ Disappointing, wouldn’t recommend if you are active *by S***K on 24 December 2025* Had the ring about 10 months and generally disappointed. I don’t think it’s a good investment if you are sporty, far better to stick with a sports watch. It is really poor and registering movement. I have tried it alongside a Garmin watch for 3 months and undercounts steps by up to 40%. Really poor at picking up heart rate if you are exercising. Cycled earlier, hit 155bpm, ring recorded max of 135bpm I like the health stats on sleeping and stress, really detailed. Though ring randomly doesn’t record any sleep stats about 1-2 days a month. I bought because I didn’t want to wear sports watch all the time when I have other decent watches, and ring is unobtrusive. But I wouldn’t recommend if you are sporty like me, fine if you just want to record sleep/stress ### ⭐⭐⭐⭐⭐ So glad I bought it! *by H***. on 27 October 2025* This ring is brilliant! I wanted to track my sleep specifically and tried using my watch, but didn't like wearing it in bed as it was heavy and I noticed that if I woke up in the night, I would check messages. The ring is light and easy to wear; I don't even notice that it's on and rather than just wearing it at night, which was my original intention, I have been wearing it all day, every day. The app shows me the sleep data I wanted and lots of other things that I wasn't expecting like when to stop drinking caffeine and the best time to get some exercise and sunlight. I personally take it off to shower, but as it's waterproof, you don't need to and I usually put it on it's charger but it seems to have a long battery life on the option I'm using. I'm really pleased that I bought the ring and I'm looking forward to getting more information about my sleep so that I can work on and improve it. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/668286864-ultrahuman-ring-air-smart-ring-health-tracker-size-first-ultrahuman](https://www.desertcart.jp/products/668286864-ultrahuman-ring-air-smart-ring-health-tracker-size-first-ultrahuman) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-04*