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💍 Elevate your wellness game—wear the future on your finger.
The Oura Ring 4 is a cutting-edge smart ring crafted from durable titanium, designed for 24/7 wear with water resistance up to 50 meters. It tracks over 30 biometric signals including sleep, heart rate, and stress, powered by Smart Sensing technology for precise, continuous data. With up to 8 days of battery life and seamless Bluetooth connectivity to iOS and Android devices, it offers a minimalist yet powerful fitness and health tracking experience, complemented by an optional membership for enhanced insights.
| ASIN | B0D9WWHXHH |
| Additional Features | Activity Tracker |
| Age Range Description | Adult |
| Band Color | Stealth |
| Band Material Type | Titanium |
| Battery Average Life | 8 days |
| Battery Capacity | 6720 |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Battery capacity | 6720 |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | #591 in Electronics ( See Top 100 in Electronics ) #3 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 | Buckle |
| Color | Stealth |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Country of Origin | Estonia |
| Customer Reviews | 4.0 out of 5 stars 8,781 Reviews |
| Display Type | Analog |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Dimensions | 25 x 25 x 8 millimeters |
| Item Dimensions D x W x H | 25D x 25W x 8H millimeters |
| Item Weight | 0.19 Kilograms |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate Monitor, Sleep Duration, Stress Monitor |
| Model Name | Oura Ring 4 - Stealth - Size 11 |
| Model Number | JZ90-54218-11 |
| Operating System | Proprietary OS |
| Operating system | Proprietary OS |
| Shape | Round |
| Special features | Activity Tracker |
| Style Name | Minimalist |
| Supported Application | Fitness Tracker, Sleep Monitor, Heart Rate Monitor, Pedometer, Multisport Tracker, Reminders, Calendar, Music Player, Messages, Social Media, Weather, Contacts, Photo Gallery, Find My Phone, Voice Assistant, Voice Control, Voice Record, Time Display, Phone, Video Record, Camera, Alarm, Blood Pressure Monitor, Elevation Tracker, Email, GPS |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Unit Count | 1.0 Count |
| Warranty Description | 2 year manufacturer warranty |
| Warranty Type | Limited |
| Water Resistance Depth | 50 Meters |
| Water Resistance Level | Waterproof |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | Unlocked |
| Wireless communication standard | Bluetooth |
A**L
Very good ring, apps, afterservice
I bought in Apr-25 (with Salama 1yr extra warranty). I have been using this ring a everyday and never give me issues. However, these last couple of day, it started to lose connection when i am outside, and battery seems to be very quick charge. Contacted the support thru app, and got replacement in mere minutes. Very good after service. Ring itself is very good at tracking sleep, stress level, and help me plan my day. The heart rate is same as my sport band type hrm. The app is very good, able to sync with strava, google health. If any suggestion i would make, is for Oura to allow the notes for daily supplements to carry over. I have supplements around same time, everyday. I would recommend the ring for the after service, apps - and that it comes in a ring package, so i can wear my watches without feeling dumb :)
A**A
New Ring
My Oura Ring arrived in perfect condition, the box was closed and the ring is new, was very easy to create and account in the app, I got one month free subscription as advertised, I was so worry about the reviews and at the end everything works great. Love the ring colour.
S**T
Product Warranty does not work
Ring stopped functioning within 10 months and the company is unable to fulfill the promised warranty of replacement stating it’s out of stock as they are phasing it out and not sure when will they get back the stock for my size. Once the new model hit the market, my ring started glitching and a reputable company like Oura is not fulfilling its warranty in real world for me.
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
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!
B**S
A piece of jewelry with insightful data
It’s been one of my best decisions to buy this ring. Really insightful data and nice on the finger as well.
D**A
Nice
Delivery took longer than expected, but i am happy with the ring. It does exactly what they advertise. Its a nice to have.
A**S
Top, je suis vraiment contente de mon achat.
Top, je suis vraiment contente de mon achat🤩
U**A
Najlepszy
Najlepszy tracker samopoczucia i dobrostanu
C**L
Great insights on sleep
I’ve only used it for a week so I haven’t gotten the full insights it can offer, but the Oura ring 4 has been great so far. I bought it primarily to track my sleep, and it’s fascinating to track the quality of my sleep each night.
Trustpilot
1 month ago
3 weeks ago