Oura Ring 4 Gold Size 4 - Smart Ring for Sleep & Recovery

Our review of the Oura Ring 4 finds it best for people who want a discreet, 24/7 health tracker focused on sleep and recovery; its biggest selling point is accurate, continuous biometrics delivered in a compact, comfortable titanium ring. The ring's updated all-titanium design and Smart Sensing platform make it a practical choice for users who prefer minimal interruption from wearables, and the included first month of Oura membership helps new users explore sleep, readiness, and activity insights quickly. Size carefully with the Oura Sizing Kit before buying, because sizes are unique to Oura.

Key Features

• Smart Sensing: Tracks over 50 health metrics and adapts to your patterns so sleep, readiness, and heart health data are more tailored and continuous.
• All-titanium design: A durable yet lightweight construction intended for comfortable, 24/7 wear even for sensitive skin and in water.
• Long battery life: Up to 8 days of battery life lets you forget the ring is on during workouts, sleep, and nights out without frequent charging.
• App and integrations: Syncs with iOS and Android and connects to over 40 apps including Apple Health, Google Health Connect, Strava, and women's health platforms.
• Membership included: The first month of Oura membership is included for new members so you can access guided insights and deeper analytics right away.
• HSA/FSA eligible: The ring, additional chargers, and shipping may be eligible for HSA or FSA payments, simplifying purchase for some buyers.

Who It's For

The Oura Ring 4 is ideal for sleepers, athletes, and anyone who wants quiet, continuous health monitoring without a screen or regular buzzing. People who value accurate sleep staging, heart-rate tracking, and a small form factor that does not draw attention will appreciate the design and the Smart Sensing platform.

It is less suited for users who need on-device displays, tactile alerts, or standard jewelry sizing; because Oura uses its own sizing system, you must size with the official Sizing Kit first. Also, those who prefer immediate long-term free analytics without a membership model should note the subscription after the introductory month.

Pros & Cons

Pros

• Accurate sleep and heart-rate tracking driven by Smart Sensing for continuous nightly and daytime metrics.
• Comfortable, durable all-titanium design made for 24/7 wear and water resistance.
• Long battery life of up to 8 days reduces charging interruptions for consistent data collection.
• Seamless app integrations and an included first month of membership to explore deeper insights.

Cons

• Sizing is unique to Oura and requires purchasing or using the Sizing Kit to ensure a proper fit.
• Some users report mixed experiences with battery life and scratch resistance despite strong build quality overall.

Specifications

Brand	OURA
Model	Oura Ring 4
Material	All-titanium
Battery life	Up to 8 days
Metrics tracked	Over 50 health metrics (sleep, activity, heart health, stress, women's health)
Compatibility	iOS and Android, integrates with 40+ apps
Membership	First month included for new members; subscription applies afterward

Our Verdict

The Oura Ring 4 is a strong choice for anyone seeking a discreet, comfortable wearable that excels at sleep and recovery tracking; its Smart Sensing, titanium build, and multi-day battery provide reliable daily and nightly metrics. Buyers willing to size carefully and accept the membership model will find it to be a good value for focused health insights and seamless app integration.

Frequently Asked Questions

Do I need the Sizing Kit?
Yes. Oura Ring 4 uses unique sizing different from standard US ring sizes, so use the official Sizing Kit to ensure the best fit and data accuracy.

Is membership required to use the ring?
The first month of membership is included for new members; ongoing access to full insights requires a subscription after the trial or an annual prepaid option.

Can I wear it in water?
Yes. The Oura Ring 4 is designed for 24/7 wear and is water resistant for everyday use.