Oura Ring 4 - Smart Ring - Silver - Size 8 - Sleep, Activity, Women's Health, AI Advisor, Up to 8 Days of Battery Life, Oura App, Android & iOS Compatible
by OURA · Wearable Technology
In Stock
7,045 verified reviews · We may earn a commission · Disclosure
Fair price · based on price history, ratings & popularity
- Popularity
- 🔥 Trending
- Network
- amazon
- Prime
- ✓ Eligible
- Region
- us
Why it's a great deal
ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night
ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
DESIGNED FOR 24/7 WEAR - The updated design of the Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin
SYNC WITH YOUR FAVORITE APPS - Compatible with iOS and Android — Oura seamlessly integrates with over 40 apps including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava, & more
LOOKING FOR THE BEST HEALTH TRACKER? - Whether you’re searching for a sleep ring or fitness ring, Oura Ring 4 is for you — this revolutionary smart ring that allows you to discreetly track your sleep, activity, recovery and stress — in style
Specifications
- GPS
- No GPS
- ASIN
- B0D9WVSZ56
- Brand
- OURA
- Shape
- Ring
- Colour
- Silver
- Brand Name
- OURA
- Model Name
- Oura Ring 4 - Silver - Size 8
- Sport Type
- Multi-Sports
- Style Name
- Modern
- Band Colour
- Silver
- Item Weight
- 5.2 Grams
- Box Contents
- Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable
- Closure Type
- Slip On
- Display Type
- No Display
- Manufacturer
- Oura
- Model Number
- JZ90-54217-08
- Warranty Type
- Lifetime
- Controller Type
- Remote control via smartphone
- Item Dimensions
- 25 x 25 x 7 millimetres
- Special feature
- Heart Rate Monitor, Activity Tracker
- Target Audience
- Unisex Adult
- Battery Capacity
- 26 Milliamp Hours
- Battery capacity
- 26 Milliamp Hours
- Customer Reviews
- 4.3 4.3 out of 5 stars (6,306) 4.3 out of 5 stars
- Metrics Measured
- optical, accelerometer
- Operating System
- Android
- Operating system
- Android
- Product Features
- Heart Rate Monitor, Activity Tracker
- Battery Cell Type
- Lithium Polymer
- Best Sellers Rank
- 361 in Electronics & Photo (See Top 100 in Electronics & Photo) 1 in Wearable Tech Rings
- Country of Origin
- Estonia
- Waterproof Rating
- IP68
- Band Material Type
- Titanium
- Case Material Type
- Titanium
- Compatible Devices
- Smartphone
- Battery Charge Time
- 80 minutes
- Battery Average Life
- 8 days
- Wireless Compability
- Bluetooth
- Age Range Description
- Adult
- Communication Feature
- App Integration, Bluetooth
- Human Interface Input
- Buttons
- Supported Application
- Over 40 apps including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava, & more
- Water Resistance Depth
- 1 Metres
- Water Resistance Level
- Water Resistant
- Wearable Computer Type
- Smart Ring
- Compatible Phone Models
- iOS, Android
- Connectivity Technology
- Bluetooth, USB
- Connectivity technology
- Bluetooth, USB
- Memory Storage Capacity
- 5 MB
- Memory storage capacity
- 5 MB
- Battery cell composition
- Lithium Polymer
- Item Dimensions D x W x H
- 25D x 25W x 7H millimetres
- GPS Geotagging Functionality
- No GPS
- Wireless communication standard
- Bluetooth
- Supported Satellite Navigation System
- GPS
Our Data-Driven Analysis
OURA holds a 4.2/5 rating from 7,045 verified buyer reviews in our Wearable Technology category. This is a solid rating indicating the majority of buyers are satisfied with their purchase.
Our proprietary Deal Score rates this a 4.3/10 based on price history, rating trends, review velocity, and category positioning. Fair value currently — consider waiting for a deeper discount if your timeline is flexible.
Compared to 8 similar products in Wearable Technology, pricing is above the category average (£26.62).
Analysis generated from 7,045 verified reviews · Price data updated hourly · Methodology: how we analyze
Customer Ratings
This product holds a 4.2/5 average from 7,045 verified customer ratings on Amazon. We surface the genuine retailer rating here so you can judge the deal at a glance — and we link straight to the source so you can read the real reviews yourself.
Read customer reviews on AmazonRatings are aggregated from Amazon and re-verified hourly. We may earn a commission if you buy through our link.
More Wearable Technology Deals
View all →![DEALELE [2-PACK] Case Compatible with Samsung Galaxy Watch 7 40mm, Bling Single-Row Diamond PC Protective Case Replacement Watch Cover Bumper (40mm, Rainbow+Transparent)](/_next/image?url=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F71B1pqaj9bL.jpg&w=1200&q=75)
−47%DEALELE [2-PACK] Case Compatible with Samsung Galaxy Watch 7 40mm, Bling Single-Row Diamond PC Protective Case Replacement Watch Cover Bumper (40mm, Rainbow+Transparent)
−15%Leather Watch Band with Magnetic Buckle,Dressy Apple Watch Ultra Leather Band Rugged Durable Replacement Strap for Men & Women
0Maledan Braided Solo Loop Strap Compatible with Apple Watch Strap 38mm 40mm 41mm 42mm 44mm 45mm 46mm 49mm for Women Men, Adjustable Stretchy Sport Band for iWatch SE Series 10 9 8 7 6 5 4 3 2 1
Hexasider Replacement Silicone Strap Compatible with Hume Band, Soft Adjustable Wrist Bands for Hume Band Replacement Strap, Breathable Sport Wristbands Fitness Tracker Women Men
2026 Smart AI Glasses, 8MP 4K POV Camera, AI Assistant, HD Video, Voice Recorder, Meeting Transcriber, Translation, Open-Ear Bluetooth, Photochromic + Extra Blue Light Lenses for Travel & Vlogging
ZOOROO 3-Pack Nylon Loop Sport Replacement Bands Compatible with Hume Health Band, Soft Breathable Adjustable Wrist Band for Hume Band Replacement Strap Wristband for Fitness Tracker Women Men
![DEALELE [2-PACK] Case Compatible with Samsung Galaxy Watch FE / 5/4 40mm, Bling Double-row Diamond PC Protective Case Protector Cover, 40mm, Silver + Transparent](/_next/image?url=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F7163ZvMIBWL.jpg&w=1200&q=75)
0DEALELE [2-PACK] Case Compatible with Samsung Galaxy Watch FE / 5/4 40mm, Bling Double-row Diamond PC Protective Case Protector Cover, 40mm, Silver + Transparent
0NewWays 2-pack Women Bling Case Compatible with Apple Watch 40mm Series 6/5/4/SE(2025-2020) Without Protective Film,Overall Protective Bumper Diamond Cases for iWatch 40mm(Silver+Clear)
Buying Guides in Wearable Technology
Wearable Technology Buying Guide
Navigate the world of smartwatches, fitness trackers, and smart rings with confidence. This guide uses real product data to help you make an informed decision.
Wearable Technology Buying Guide
Navigate the world of smartwatches, fitness trackers, and smart rings with confidence. This guide helps you understand key features, value, and how to make an informed decision based on real product data.
Best Wearable Technology: Top Picks for Every Lifestyle
Discover the top wearable technology devices to enhance your health, fitness, and daily life. Our analysis covers the latest smartwatches, fitness trackers, and smart rings, highlighting key features, performance, and value.
Get deal alerts in your inbox
Verified deals, no spam. Unsubscribe anytime.
Prices and availability are accurate as of the date/time indicated and are subject to change. Affiliate disclosure
OURA
£349.00