Oura Ring 4 Review: Is It Worth Upgrading?

The Oura Ring 4 is less of a dramatic reinvention and more of a polished upgrade. Oura refined the design, improved comfort, expanded sizing, and introduced a new Smart Sensing system aimed at delivering more reliable health tracking. Reviews from long-term testers still place it among the best smart rings available today. 

But whether it's worth upgrading depends on one thing: Are you coming from an older Oura generation, or buying your first smart ring?

What's New in Oura Ring 4?

Compared with the previous generation, Oura Ring 4 adds:

• Redesigned Smart Sensing system with more signal pathways

• Flat internal sensors for better comfort

• Fully titanium construction

• Expanded sizing from 4–15

• Up to 8 days battery life

• Improved fit and wearability 

The biggest design change isn't flashy—it removes the raised sensor bumps found in older versions. Multiple reviewers say that alone makes daily wear feel more natural. 

Design and Comfort

The Oura Ring 4 looks almost identical from the outside, but the inside changed significantly.

Long-term users frequently describe it as a “wear and forget” device because it's lighter and more comfortable than wearing a smartwatch to sleep. 

Pros:

✓ Premium titanium finish
✓ Comfortable for sleep tracking
✓ Water resistance up to 100m
✓ More size options

Cons:

✗ Can scratch with rough daily use
✗ Some finishes show wear faster 

Sleep Tracking Is Still Its Biggest Strength

If you're buying an Oura ring for workouts, you may be disappointed.

If you're buying it for sleep, recovery, stress trends, and readiness insights, this is where it shines.

Reviewers repeatedly highlight:

• Detailed sleep-stage analysis

• Resting heart rate tracking

• HRV monitoring

• Stress and recovery scores

• Body temperature trends

• Readiness scoring 

Oura recently expanded sleep-related tools through partnerships and new assessment features, further strengthening its wellness ecosystem. 

Fitness Tracking: Better, But Still Not Amazing

This remains Oura's weak spot.

Community discussions and reviewer testing often say the ring excels at passive health tracking but isn't ideal for serious workout metrics or athletes wanting detailed training data. 

You can track workouts, but many users still pair Oura with a smartwatch.

Think of Oura as:

Sleep coach + recovery tracker

Not:

Full sports watch replacement

Battery Life

Battery life remains one of the strongest reasons people switch from watches.

Typical use:

• Around 5–8 days per charge

• Faster charging than earlier models

• Enough for uninterrupted sleep tracking 

The Biggest Problem: Subscription Cost

This is still the complaint you see most often.

You pay premium hardware pricing, then pay approximately $5.99 monthly to unlock the full experience. 

Reddit users repeatedly mention this as the biggest reason they consider alternatives like RingConn. 

Should You Upgrade?

Upgrade if:

✅ You own an older Oura Gen 2
✅ Comfort matters
✅ You prioritize sleep tracking
✅ You wear health tech 24/7

Skip the upgrade if:

❌ You already own Oura Gen 3 and are happy
❌ You mainly care about workout tracking
❌ You dislike subscriptions

One reviewer summarized the Gen 3-to-4 jump as "good, but not transformative." 

Final Verdict

For first-time buyers, Oura Ring 4 is arguably the smartest buy in the premium smart ring category. It remains the benchmark for sleep and recovery tracking and continues to improve through software updates. 

For existing Oura Gen 3 users, the answer is less clear. The comfort improvements are real, but the experience may not feel dramatically different enough to justify a full upgrade price plus subscription costs.