What the Oura Ring 5 Upgrade Is Really About
The Oura Ring 5 upgrade is a next-generation smart ring that refines Oura’s finger-based health tracking with a slimmer titanium design, reworked sensors, and software aimed at more accurate, everyday insights for sleep, readiness, and activity. For current Ring 4 owners, the big question is whether these physical and functional changes justify the higher price and the effort of switching. Both rings measure heart rate, heart rate variability, SpO2, respiratory rate, temperature, and movement, then translate that data into scores for sleep, activity, and readiness. The Ring 5’s appeal rests on comfort, greater accuracy, and live workout tracking packed into a noticeably smaller band. At the same time, Ring 4 remains a capable, comfortable smart ring that already delivers reliable health insights, so the decision hinges on how much you value size, precision, and new live-tracking features over price and sizing flexibility.
Design and Comfort: Thinner, Smaller, and More Scratch-Resistant
Oura Ring 5 is 40% thinner than Ring 4, shrinking to 0.24 inches wide and 0.09 inches thick while keeping a titanium body and 100 m water resistance. That slimmer form factor makes it look and feel closer to a regular ring, which should help with all-day wear and comfort during activities like weight training where Ring 4 can sometimes feel intrusive. It also gains a tougher physical vapor deposition coating, making it the most scratch-resistant Oura ring so far. However, Ring 4 still wins on flexibility: it is available in more sizes (4 through 15) and even in an extra-durable ceramic exterior. Oura recommends a fresh sizing kit for Ring 5 due to the redesign, and the size range is now 6 through 13. If your fingers fall at either extreme, Ring 4 may simply fit better, despite the appeal of a slimmer band.
Sensors, Accuracy, and Live Tracking Features
Both rings share a similar sensor suite: red and green infrared LEDs for heart and SpO2, temperature sensors, and an accelerometer that together power sleep, activity, and stress tracking. Ring 4 uses 18 signal pathways through the finger, while Ring 5 uses 12 stronger pathways paired with more powerful LEDs and low-profile sensor domes to improve skin contact. According to TechGuide, arteries in the finger provide a cleaner pulse signal than the wrist, and Oura says Ring 5’s optical sensors are one hundred times stronger than those on a smartwatch. That, plus redesigned internals, underpins its claim of greater accuracy. Both models now support live workout tracking in the Oura app and can sync with a third-party heart rate monitor for real-time pulse data, addressing a key limitation of earlier generations that only offered broad heart rate zones rather than precise workout readings.
Battery Life, Membership, and Price: Premium vs Value
Battery expectations are close. Oura estimates Ring 5 will last six to nine days on a charge, while Ring 4 is rated for five to eight days and has already proven it can reach about a week in real use. Both work with a size-specific charging base, and you can add an optional aluminum charging case (an extra accessory) that stores about a month of top-ups and supports both Ring 4 and Ring 5. Pricing, however, tilts the value equation. Oura Ring 5 starts at USD 399 (approx. RM1,840) for black or silver, rising to USD 499 (approx. RM2,300) for brushed silver, deep rose, gold, or stealth. Oura Ring 4 starts at USD 349 (approx. RM1,610) in silver or stealth, and its gold or ceramic finishes are now discounted. Both require a USD 69.99 (approx. RM320) annual membership to unlock most app features, so ongoing costs are effectively the same.
Should Oura Ring 4 Owners Upgrade to Ring 5?
For current Ring 4 owners, upgrading hinges on three factors: comfort, accuracy, and how much you care about the latest hardware. If the Ring 4 feels bulky, catches during workouts, or clashes with your style, the Ring 5’s 40% thinner body and more scratch-resistant finish are meaningful improvements. If you want the most precise finger-based tracking Oura offers, Ring 5’s more powerful optical system and refined sensing architecture are designed for cleaner signals and more reliable data. However, Ring 4 remains the better value and still delivers strong sleep, readiness, and activity insights alongside the same membership experience. If you are happy with your current comfort and scores, Ring 4 owners can comfortably wait. The Oura Ring 5 upgrade makes sense if you wear the ring constantly, train often, and want the smallest, most accurate Oura ring available today.
