Oura Ring 4 Brushed Silver Size 6 - Smart Ring Rings

In this review the Oura Ring 4 in Brushed Silver (Size 6) is evaluated as a discreet, all-titanium smart ring aimed at people who want continuous health tracking without a wrist device. The biggest reason to buy is its focused, 24/7 monitoring: the ring uses Smart Sensing to deliver accurate sleep, readiness and activity metrics while remaining comfortable for constant wear. Reviewers who prioritize sleep and recovery data will find the ring especially valuable, though sizing before purchase is essential to get the intended fit and accuracy.

Key Features

• Smart Sensing: Adapts sensing to the wearer to provide accurate and continuous tracking of over 50 health metrics including sleep and heart health.
• All-titanium design: The durable, lightweight titanium body is made for daily wear and is water resistant for everyday use.
• Long battery life: Up to 8 days of battery life lets users forget the ring is on between charges, improving long-term habit tracking.
• Membership integration: The first month of Oura membership is included for new members, and ongoing insights sync to the Oura App via a subscription option.
• Size before you buy: Oura Ring 4 uses a different sizing system, so the Sizing Kit is required to choose the correct fit for reliable metrics.

Who It's For

The ring suits sleep-focused users, athletes and anyone who prefers a low-profile wearable that records sleep, readiness, activity and womens health metrics without a screen or vibrations. It is good for people who value long battery life and a comfortable, 24/7 wearable that does not look like a fitness tracker.

Customers who should look elsewhere include those who need touchscreen interaction, haptic alerts, or a device with more explicit smartwatch features. Also, buyers unwilling to use the sizing kit or who want guaranteed scratch resistance may want to consider other form factors.

Pros & Cons

Pros

• Very strong sleep and readiness tracking that many users prefer to wrist devices.
• Comfortable, water resistant all-titanium build suitable for continuous wear.
• Up to 8 days of battery life reduces charging interruptions for long-term tracking.

Cons

• Sizing is nonstandard so the Sizing Kit is essential and adds an extra step before buying.
• Some customers report mixed experiences with scratch resistance despite the titanium construction.

Specifications

Our Verdict

The Oura Ring 4 is a compelling choice for users who want precise, unobtrusive sleep and recovery insights in a durable, comfortable form. It delivers excellent battery life and a focused feature set that justifies the cost for people who prioritize health metrics over smartwatch features, provided they size correctly with the Sizing Kit.

Frequently Asked Questions

Do I need a membership?
New buyers get the first month included; ongoing access to advanced insights requires a subscription or the annual prepaid option.

Is the ring water resistant?
Yes, the Oura Ring 4 is water resistant and designed for 24/7 wear including everyday water exposure.

How important is the Sizing Kit?
Very important: Oura Ring 4 uses a different sizing system, and correct sizing improves comfort and data accuracy.