Oura Ring 4 – Smart Ring – Silver – Size 9 – Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Oura App, Android & iOS Compatible
The Oura Ring 4 in Metallic Silver, Size 9, is a titanium smart ring designed for continuous health tracking through the Oura App. It uses Smart Sensing to track sleep, activity, readiness, stress, heart health, metabolic health, and women’s health metrics while connecting to Android and iOS devices via Bluetooth.
Overview
Oura Ring 4 is a screen-free, vibration-free wearable designed to collect health data day and night in a ring format. This Size 9 version has a silver metallic finish and an all-titanium construction. The ring is water resistant, carries an IP68 rating, and is listed with water resistance to 100 meters.
The supplied package contents include the Oura Ring 4, an Oura Ring 4 charger, a USB cable, an information booklet, and a quick-start guide. It includes a one-year manufacturer warranty.
Key Features
Smart Sensing adapts to the wearer and supports tracking of more than 50 health metrics. Listed areas include sleep, readiness, activity, stress, heart health, metabolic health, body temperature, menstrual cycle information, and women’s health.
The ring supports Bluetooth connectivity with Android and iOS smartphones. Oura also states that the app integrates with more than 40 services, including Apple Health, Google Health Connect, Natural Cycles, Flo, and Strava.
Battery life is listed as up to 8 days, while the product details list an average battery life of 5 days. The ring has no display and no built-in GPS.
Real-World Performance
The manufacturer presents Oura Ring 4 as a discreet option for around-the-clock tracking, including sleep, activity, recovery, and stress. Its water-resistant titanium design also supports fitness and swimming use cases.
Customer feedback is mixed in several areas. Some customers highlight sleep tracking and overall product quality, while reports on tracking accuracy, battery performance, and functionality vary. Some customers also report Bluetooth connection issues, and durability concerns appear in feedback.
Ease of Use and Maintenance
The ring is operated through the Oura App and is designed to be worn as a slip-on ring. Oura advises using the Oura Ring 4 Sizing Kit before purchase because its sizing differs from standard jewelry-ring sizing.
Multi-ring support in the Oura App allows people with two or more Oura Ring 4 styles to switch between finishes. The Oura membership is tied to the user’s account in the app rather than to an individual ring; the first month is included for eligible new members.
Pros and Trade-Offs
Pros include the all-titanium design, screen-free format, broad health-tracking scope, Android and iOS compatibility, app integrations, water resistance, and stated battery life of up to 8 days.
Trade-offs include the lack of built-in GPS and the need to confirm sizing with Oura’s dedicated sizing system. Customer feedback also indicates that Bluetooth reliability, durability, accuracy, and battery results may differ among users.
Who This Product Is For
The Oura Ring 4 suits adults looking for a ring-style wearable that combines sleep, activity, stress, readiness, heart-health, and women’s-health tracking in the Oura App. It may appeal to people who prefer a wearable without a display or vibrations and who use Android or iOS smartphones.
It is also suited to users who want to wear a tracker during everyday activity, sleep, and swimming. Prospective buyers should use the Oura Ring 4 Sizing Kit to identify the appropriate fit before selecting this Size 9 model.
