Oura Ring 4 Ceramic Review: A Colorful Glow-Up for the Smart Ring

Let’s be honest — most wearables lean more toward tech than style. But if you’re wearing something on your hand every day, you probably want it to look good, feel natural, and blend in with the rest of your jewellery. That’s precisely what Oura is aiming for with its latest release, the Oura Ring 4 Ceramic.

The new collection trades in metallic finishes for zirconia ceramic, a durable, scratch-resistant material that promises both comfort and sophistication. After spending three weeks testing it, here’s what stood out.

Design and Feel

The Oura Ring 4 Ceramic is available in four colours — Midnight (dark blue), Cloud (white), Tide (light teal), and Petal (light pink) — each priced at $500, approximately $150 more than the standard titanium Oura Ring 4. Available in sizes 4 through 15, the Ceramic version is slightly thicker and heavier but still impressively sleek.

The Midnight colour I tested often appeared black — sometimes even dark green — depending on the lighting. It doesn’t scream “tech gadget” at first glance, which is a plus for anyone who prefers subtlety over flash.

The Ceramic ring measures 3.51 mm thick, compared with 2.88 mm for the titanium version, and weighs between 5.1 and 8.1 grams, depending on size. Despite the added heft, it feels light on the hand, similar to a standard metal band.

The zirconia ceramic surface is smooth and fingerprint-resistant, though it can feel slightly “sticky” compared to the cooler, slicker titanium finish. That sensation faded after a day or two of wear.

We claim the colours originate from natural minerals embedded in the ceramic itself, so they shouldn’t fade. After three weeks, the finish still looked just as vibrant as it did on day one.

Durability and Everyday Use

Oura cautions that the Ceramic model may scuff if it brushes against softer metals, such as cookware or dumbbells. It ships with a Polishing Pad to buff out minor marks, though my review unit didn’t include one.

The company also recommends wearing it on your non-dominant hand. Still, I wore it on my dominant index finger for testing — putting it through a realistic (and arguably more challenging) routine.

From airport travel and luggage handling to bumping against counters and even leaning on an aeroplane window, the ring held up without visible scratches. It survived contact with a rusty railing at Point Arena Lighthouse and even an accidental round of dishwashing, despite Oura advising against it.

While it’s water-resistant up to 100 meters, the Ceramic ring may still scuff from contact with certain metals, so caution is advised. Over time, minor wear is inevitable, especially if worn daily on a dominant hand.

Performance and Battery Life

Like the titanium Oura Ring 4, the Ceramic model tracks heart rate, sleep quality, stress, and readiness scores via the Oura app. The insights were clear, consistent, and surprisingly motivating — I found myself checking my “readiness score” every morning to see how well-rested I was.

Battery life has been steady, lasting five to eight days per charge — in my case, I only had to recharge it once per week, matching Oura’s estimates.

Verdict

The Oura Ring 4 Ceramic is a beautiful evolution of one of the smartest rings available. Functionally, it mirrors the titanium version, but the ceramic finish brings a refreshing blend of colour, texture and luxury that makes it feel more like jewellery than tech.

If you want your health tracker to stand out — or blend in beautifully — this might be the one for you.
However, if you prefer a lighter, more classic look and want to save $150, the titanium Oura Ring 4 remains an excellent choice.

Either way, Oura continues to set the standard for discreet, data-driven wearables.