💍 Elevate your wellness game with the sleekest smart ring that’s always one step ahead.
The Oura Ring 4 is a cutting-edge smart ring crafted from durable titanium, offering up to 8 days of battery life and water resistance up to 328 feet. It tracks over 30 biometrics including sleep, heart rate, activity, and stress with adaptive Smart Sensing technology. Designed for 24/7 wear, it comes with a sizing kit for a perfect fit and includes a free first month of Oura Membership for personalized health insights.
| ASIN | B0D9WWB3WX |
| Additional Features | Heart Rate Monitor, Activity Tracker |
| Age Range Description | Adult |
| Band Color | Silver |
| Band Material Type | Titanium |
| Battery Average Life | 8 days |
| Battery Capacity | 192 |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Battery capacity | 192 |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | #121 in Electronics ( See Top 100 in Electronics ) #1 in Wearable Tech Rings |
| Brand | OURA |
| Built-In Media | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Case Material Type | Titanium |
| Closure Type | Slip On |
| Color | Silver |
| Communication Feature | Bluetooth |
| Compatible Devices | PC, Smartphone, Tablet |
| Compatible Phone Models | iPhone (all current models), Android (all current models) |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Ring |
| Country of Origin | China |
| Customer Reviews | 4.0 out of 5 stars 5,054 Reviews |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Buttons |
| Item Dimensions | 26 x 26 x 7 millimeters |
| Item Dimensions D x W x H | 26D x 26W x 7H millimeters |
| Item height | 0.7 centimeters |
| Manufacturer | Oura |
| Metrics Measured | optical, accelerometer |
| Model Name | Oura Ring 4 |
| Model Number | JZ90-54217-09 |
| Operating System | Proprietary OS |
| Operating system | Proprietary OS |
| RAM Memory Installed | 512 KB |
| Shape | ring |
| Special features | Heart Rate Monitor, Activity Tracker |
| Style Name | Modern |
| Supported Application | Apple Health |
| Target Audience | Unisex Adult |
| Warranty Description | manufacturer warranty |
| Water Resistance Depth | 328 Feet |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |
R**U
dying battery render the ring useless, free replacement seamlessly provided
Product works as expected and is hepful. After 7 months of usage battery is dying, resisiting less than one day after full charged. I contacted the seller, and free replacement arrived in couple of days, no need to return the mafunctioning one. As such, a one star reviewe turned into a 5 stars.
T**E
Pricey and good quality
No wonder it is priced very high but it delivers the quality justifying the price tag
K**S
Useless
Useless : battery fails after 1 month : customer service does not exist : do not buy
K**O
Life changing if you’re willing to put the work in
I’ve had it for a month now and I can say it really keeps me on track not necessarily health and fitness but more habits and trends. I think everyone can benefit from it. It came neatly packaged and sealed 100% new and after wearing every day I definitely have a lot of small scratches (and I take it off for showering doing dishes etc) but not visible to the normal eye
F**I
Outstanding technology
The ring works very well and it is helping to monitor my health, sleep and activity. Strongly suggested. I got my ring the same day I ordered, great service from Amazon
I**Y
Good functional ring. Maybe the best on the market
Color has changed in few months. A lot of scratches. But the ring in overall is very good and functional.
L**G
the best investment I've ever made
I love it !! The Oura Ring 4 is a powerful tool for those looking to optimize their health mindfully and without the digital noise of other devices. It’s ideal for anyone who values sleep quality, physical recovery, and overall well-being. I highly recommend it if you’re committed to improving your lifestyle in a smart and sustainable way.
Y**A
Tarnished very quickly, choose carefully
The Oura Ring colour has tarnished within 4 weeks of wearing, it now looks copper (not rose gold), and doesn't match my jewellery. I'd ideally like to exchange but the return window is really short on Amazon and there is no option to swap now even after a short period, wouldn't recommend as the colours tarnish very quickly!
Trustpilot
4 days ago
3 weeks ago
