









💍 Elevate your wellness game with the smart ring that’s as sleek as your lifestyle.
The ULTRAHUMAN Ring AIR (Certified Renewed) is a smart ring health tracker designed for men and women, offering precise sleep, heart rate variability, and activity tracking. Certified renewed for quality and backed by a 1-year warranty, it features an ultra-lightweight design and includes a sizing kit for a perfect fit. With no subscription required, it delivers actionable health insights through a user-friendly app, making it an ideal wearable for data-driven wellness enthusiasts.










| ASIN | B0D7956WT1 |
| Additional Features | Activity Tracker, Custom Activity Trainer, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Age Range Description | Adult |
| Band Color | Black |
| Band Material Type | Titanium |
| Battery Average Life | 24 Hours |
| Battery Capacity | 24 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 2 Hours |
| Battery capacity | 24 Milliamp Hours |
| Best Sellers Rank | #21,318 in Sporting Goods ( See Top 100 in Sporting Goods ) #131 in Activity Trackers |
| Brand | ULTRAHUMAN |
| Built-In Media | Charging Dock, Type C to Type C Cable, Ultrahuman Ring AIR |
| Case Material Type | Titanium |
| Closure Type | Ring |
| Color | Matte Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone, Tablet |
| Compatible Phone Models | Smartphone, Tablet |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Ultrahuman App |
| Customer Reviews | 4.2 out of 5 stars 300 Reviews |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Type Name | Ultrahuman Ring AIR Sizing Kit |
| Item Weight | 3.7 Grams |
| Language | German |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Manufacturer Contact Information | Ultrahuman Healthcare PVT LTD, No. 4088/799, Third Floor, V K Paradise Sector-2HSR Layout, Bangalore Karnataka 560102 India, Contact - 18001028693, [email protected] |
| Memory Storage Capacity | 0.5 MB |
| Memory storage capacity | 0.5 MB |
| Metrics Measured | Heart Rate Monitor |
| Model Name | Ultrahuman Ring AIR |
| Model Number | WBSBSizingKit |
| Operating System | Ultrahuman App |
| RAM Memory Installed | 0.5 MB |
| Shape | Round |
| Special features | Activity Tracker, Custom Activity Trainer, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Sport Type | CrossFit, Cycling, Running, Swimming, Yoga |
| Style Name | Ring AIR |
| Supported Application | Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Target Audience | Men, Unisex Adults, Unisex Youth, Women |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year |
| Warranty Type | Standard/Full warranty |
| Water Resistance Depth | 3 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX8 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |
P**R
Handy tool to measure ringsize
Very useful sizing kit. It helped me confidently choose the correct ring size before ordering the actual smart ring. Simple to use, clearly marked, and saves the hassle of exchanging the ring later. Can use it later for family and friends to get their ring size.. very handy tool
K**A
Práctico
Más fácil para poder saber tu talla para el ultrahuman ring
I**K
bueno
Buen producto, pero al final me decidí por otro
D**I
Works great!
Perfect price to be able to buy before hand before ordering the ring itself. They fit exactly like the actual ring and I’m very pleased with my sizing results.
B**O
Excellent Smart Ring for Health Tracking
I have been using the FITTR HART Ring for some time now and have had a very positive experience. The ring is lightweight, comfortable to wear throughout the day, and provides useful insights into key health metrics such as sleep, activity, recovery, heart rate, and overall wellness. What I particularly like is the detailed sleep analysis and readiness score, which help me better understand my daily fitness and recovery levels. The battery life is good, and the companion app is easy to use and presents the data in a simple and meaningful way. The ring has helped me become more aware of my lifestyle habits and make better decisions regarding exercise, sleep, and recovery. Overall, I find the HART Ring to be a valuable health and fitness companion and would recommend it to anyone looking for a convenient wearable for wellness tracking. Highly recommended!
Trustpilot
2 weeks ago
4 days ago