Oura Ring 4 Review: Four Months of Wearable Health Tracking 2026

My four-month Oura Ring 4 review starts on April 23, when I slipped the ring onto my right index finger. Four weeks later, my first daughter was born. Those two events are inseparable: the four months with the Oura Ring 4 match, minute by minute, the most intense, happiest, and most sleep-deprived period of my life.

Any experience with this ring was bound to be colored by that context. Mine is completely. And that's a good thing, because that's exactly where the ring became more interesting to me: when it stopped being a metrics toy and became the only thing giving me reliable information about a body I no longer knew how to read.

Oura Ring 4 Pricing and Subscription Costs

Before diving into the experience, we need to talk about money, because it's the part that most conditions the purchase decision and the part brands always leave for last.

The Oura Ring 4 starts at €379, although now that its successor has launched, you can find it on Amazon for €265. The Ring 5, presented in late May, starts at €429 and goes up to €529 for premium finishes. On top of that, there's a subscription of €5.99 per month or €69.99 per year, with the first month free.

It's not an optional subscription in any useful sense of the word. Without it, the app lets you see three daily scores (sleep, activity, and readiness), battery level, and little else. Everything else—detailed sleep analysis, continuous heart rate, temperature, and more—requires the subscription.

Design and Comfort: The Oura Ring 4 on My Finger

The Oura Ring 4 is noticeably lighter and more comfortable than previous models. I barely notice it during the day, and at night it doesn't bother me while sleeping—which is crucial when you're waking up every few hours for feedings.

The ring's sensors are flush with the inner surface, so there's no uncomfortable bump. The battery lasts about four to seven days, depending on usage, and charges quickly on its dock.

Sleep Tracking: What the Ring Revealed

Sleep tracking is where the Oura Ring 4 truly shines. It breaks down sleep stages (deep, light, REM) and provides a sleep score each morning. During those first weeks with a newborn, the ring showed me that even when I thought I'd slept enough, my deep sleep was minimal. Context on how this played out before sits in Oura Ring 4 Review: Four Months of Wearable Health Tracking. A companion piece, PHP Powering 70% of Web Has Just One Full-Time Employee, approaches the same subject from another angle.

That insight was a wake-up call. I started prioritizing naps and adjusting my bedtime routine, and the ring's data helped me see the impact of those changes. The background to this story is set out in Oura Smart Ring Maker Files for Nasdaq IPO After Revenue Surge. A related thread runs through Alan Jones Trial: Four Months That Will Define His Legacy.

Readiness Score and Heart Rate Variability

The readiness score is another standout feature. It combines heart rate variability (HRV), resting heart rate, body temperature, and previous day's activity to tell you how ready you are for the day. On days when I felt exhausted but the score was high, I learned to trust the data and push through. On days when the score was low, I took it easier. Earlier coverage in Technology: latest articles shows how the argument developed. A closer look at the same subject appears in O2 Fiber Outage Returns as A-5 Tunnel Works Disrupt Internet.

Continuous heart rate monitoring is also useful, especially for spotting trends. I noticed my resting heart rate was higher on days after poor sleep, which motivated me to prioritize rest. Anyone following the wider picture can start with Toyota's 700-Ton Komatsu Press: 90 Years Old and Running Again. The same theme surfaces in Lenovo Yoga Laptops and Tablets Bring Local AI and 4K Screens to Creatives, which takes a different angle.

Pros and Cons of the Oura Ring 4

• Pros: Comfortable design, accurate sleep tracking, actionable readiness score, long battery life.
• Cons: Expensive subscription required for full features, limited without subscription, no GPS.
• Best for: People who want detailed sleep and recovery insights without a screen.
• Not for: Those who want a standalone device without ongoing costs.

Oura Ring 4 vs. Oura Ring 5: Key Differences

FAQ

After four months, the Oura Ring 4 has become an essential tool for understanding my body during a transformative period. Despite the subscription cost, the insights it provides are invaluable for anyone serious about sleep and recovery.