The latest Oura ring lands with a dramatic redesign that shrinks the device while stretching its capabilities. Released online June 4, the new Oura Ring 5 is significantly smaller than its predecessor yet promises longer battery life and more precise health tracking—changes that matter for users who wear their ring around the clock.
The headline: Oura says the Ring 5 is about 40 percent thinner, lighter and smaller than the Ring 4, positioning it as the company’s most discreet smart ring to date. That compact profile aims to improve comfort and daily wearability without sacrificing core features.
What changed — at a glance
- Size reduction: ~40% thinner, lighter, smaller than Ring 4.
- Battery life: Extended to roughly 6–9 days, compared with 5–8 days on the previous model.
- Sensors and metrics: Improved sensor precision and continued tracking across 50+ health metrics, including sleep, heart rate, stress, fitness and women’s health.
- Water resistance: Upgraded to full waterproofing (previous model was water resistant).
- Accessories: Optional Charging Case available for $99, providing multiple extra charges for travel.
Oura highlights sensor upgrades as a core improvement, saying the new ring yields more accurate readings across its health ecosystem. For users who monitor trends—sleep stages, resting heart rate, recovery signals, or menstrual and fertility data—those incremental gains can affect daily insights and long-term trend detection.
Smaller size also has practical consequences: it should reduce interference with everyday tasks and make continuous wear during activities such as handwashing or workouts more comfortable. Waterproofing broadens use cases, letting wearers keep the ring on for swimming or showering with less concern.
Models, finishes and pricing
The Ring 5 arrives in six finishes and two price tiers: a $399 entry price and $499 for premium finishes. Available options include silver and black at the lower tier, and redesigned gold, deep rose, brushed silver and a matte “Stealth” black at the higher price point. Each purchase includes a size-specific charger and cable, and Oura bundles a one-year protection plan with the ring.
Oura also reduced prices on older models: Ring 4 and Ring 4 Ceramic are being offered at discounted rates while supplies last—retailers list promotions currently ranging up to roughly 20% off (some offers show savings near $100 depending on the seller).
Sizing and fit
Because the Ring 5 has a different fit than prior Oura models and traditional jewelry sizes, Oura provides a free **sizing kit** at checkout. The kit arrives by mail; users are advised to test the ring on the index, middle or ring finger (Oura recommends these three for optimal sensor contact), then confirm the chosen size online. That process helps reduce returns and ensures the sensors sit properly against the skin.
The ring’s slimmer profile may change how sizes feel compared with older models, so trying the kit before finalizing is a practical step for first-time buyers or those switching generations.
Who might benefit most
Wearers who prioritize continuous health monitoring—especially sleep and recovery metrics—stand to gain from longer battery life and tighter sensor data. Travelers and people who dislike bulky wearables will notice the smaller footprint and the convenience of an optional charging case with multiple backup charges.
Conversely, buyers should weigh the higher-tier finishes and accessory costs against their needs. The core tracking functions remain the headline feature, but premium colors and extras push the total spend closer to $500 or more.
Bottom line
Oura’s fifth-generation ring tightens the design and leans into improved accuracy and wearability. For users who wear a ring all day and night, the combination of smaller size, longer battery and waterproofing is a meaningful upgrade. The company’s simultaneous discounts on the Ring 4 provide a lower-cost alternative for shoppers less concerned with the latest hardware refinements.
Ring 5 sales began June 4 via Oura’s website, where detailed sizing information, finish comparisons and current promotions are listed.
