Oura Ring Gen 4 Review: The Best Health Tracker?

The Oura Ring defined the smart ring category, and the Gen 4 builds on that legacy with new multi-path sensors, improved accuracy, and a refined design. After wearing it every day for two months, here is our full review of whether it deserves its crown as the best wearable health tracker you can buy.

Sleep Tracking: Still the Gold Standard

Sleep tracking is where the Oura Ring Gen 4 truly shines. It accurately identifies sleep stages — light, deep, and REM — and the data consistently aligns with what dedicated sleep lab equipment measures. The smart alarm gently wakes you during a light sleep phase within your chosen window, and the difference in how you feel in the morning is real. Sleep scores give you an actionable daily number, and the trends view helps you understand what habits improve or hurt your sleep over time.

Readiness and Recovery

The Readiness Score is Oura's signature feature, combining sleep quality, heart rate variability, body temperature, and previous day activity into a single score. On days when your Readiness is low, the app recommends lighter activity and more recovery. On high Readiness days, it encourages you to push harder. After two months, we found ourselves genuinely trusting and following these recommendations. The new Resilience score adds stress tracking, showing how well your body handles daily pressures.

Design and Comfort

The Gen 4 is thinner and lighter than its predecessor, weighing just 4-6g depending on size. The titanium construction is durable and attractive, available in silver, black, stealth, and gold finishes. It looks like a regular ring — nobody will know you are wearing a health tracker unless you tell them. The flat inner surface sits comfortably against your finger, and 100m water resistance means you never need to take it off for swimming, showering, or washing dishes.

Battery Life: Set and Forget

Seven days of battery life is excellent and consistent with Oura's claims. In practice, we averaged 6-7 days depending on how often we checked live heart rate. Charging takes about 60-80 minutes on the magnetic charger. Compared to smartwatches that need daily charging, the Oura Ring's weekly charge cycle is liberating — you genuinely forget it needs power.

The Subscription Question

The biggest drawback is the $5.99/month subscription required for full features. Without it, you get basic sleep and readiness data but lose detailed insights, trends, guided content, and some health metrics. Competitors like the RingConn Gen 2 and Ultrahuman Ring Air offer no-subscription alternatives. Whether Oura's superior accuracy and insights justify the ongoing cost is a personal decision, but we think the data quality difference is worth it for serious health trackers.

The Verdict: 4.5/5

The Oura Ring Gen 4 is the best smart ring and arguably the best wearable health tracker available. Its sleep tracking is unmatched, the Readiness Score is genuinely useful, and the discreet titanium design is beautiful. The subscription is a valid concern, but the accuracy and insight quality justify it. If sleep and recovery optimization are priorities for you, this is the wearable to buy.

Price: $349 — Check Price →