What Changes in the Oura Ring 5 vs Ring 4?
Oura Ring 5 vs Ring 4 is the comparison between two health-focused smart rings that track sleep, readiness and activity, with the newer Ring 5 promising a much thinner design, more accurate sensing and slightly longer battery life while challenging existing Ring 4 owners to decide whether its physical and performance upgrades make a smart ring upgrade worth it. On paper, the shift seems modest: Oura Ring 5 is 40% thinner than Ring 4, shrinking to about 0.24 inches wide and 0.09 inches thick while keeping the same titanium build and deep water resistance. Under the surface, though, Oura redesigned the mechanical, electrical, optical, battery and sensing architecture, added more powerful LEDs, refined algorithms and claims better health tracking than many smartwatches. The result is a fitness ring comparison that is less about new app tricks and more about feel, precision and subtle quality-of-life gains.

Design and Comfort: The Smallest Fitness Ring Gets Easier to Forget
Ring 4 was already slim for a smart ring, but Ring 5 takes comfort much further. According to hands-on reviewers, the fifth‑generation model is “visibly smaller and lighter” and, more importantly, easier to ignore in daily use. Lifehacker notes that it is the smallest smart ring they have seen and that it starts to resemble a regular jewelry ring rather than a gadget. That matters when gripping weights, typing, or even pressing your fingers together; users report that Ring 4 could leave a gap between fingers, while Ring 5 lets them close comfortably. The low‑profile sensor domes improve skin contact without adding bulk, and the titanium body remains lightweight and hypoallergenic. If you wear a fitness ring 24/7, these refinements make a clear case that the slimmer form is a real upgrade in everyday comfort, not a cosmetic tweak.

Health Tracking and Accuracy: Subtle but Meaningful Sensor Gains
Most of the headline software features on Ring 5 will also be available on Ring 4, so the real difference lies in hardware. Oura Ring 5 adds more powerful LEDs, precision‑engineered sensor domes and 12 stronger signal pathways, all tuned for more reliable skin contact across different finger types and skin tones. Oura stresses that the finger is an optimal place to measure health signals because finger arteries deliver a cleaner pulse than the wrist, and the company positions Ring 5 as more accurate than smartwatches for biometric readings. These changes should help with sleep staging, heart‑rate trends and readiness scoring, even if the app experience feels familiar. For existing Ring 4 owners, the question is whether these incremental yet meaningful sensing upgrades translate into noticeably better insights day to day, or whether their current ring already feels accurate enough.

Battery Life and Real-World Use: Marginal Gains for Heavy Trackers
Battery life was already a strong point for Ring 4, and Ring 5 tries to stretch it a bit further. Oura redesigned the battery to fit the slimmer band and estimates that Ring 5 can last between six and nine days on a charge, which is at least on par with Ring 4 and, in some cases, an extra day of wear. For most people, that means charging roughly once a week while keeping continuous sleep, activity and readiness tracking running in the background. Because both generations rely on the same app and membership for their core insights, daily routines like overnight charging, airplane travel or workout days will feel similar. The advantage for Ring 5 owners is that slightly better endurance pairs with a more comfortable form, so there are fewer reasons to take the ring off and interrupt long‑term trend data.
Is the Oura Ring 5 Price Worth It for Ring 4 Owners?
The value question centers on the Oura Ring 5 price and what you gain versus staying with Ring 4. PCMag reports that Oura Ring 5 starts at USD 399 (approx. RM1,850), a USD 50 (approx. RM230) increase over the previous generation, while Ring 4 now starts at USD 349 (approx. RM1,620) in some finishes and has discounted premium options. Both require a USD 69.99 (approx. RM325) annual membership for full app features. If you already own Ring 4 and it fits comfortably, the smarter financial choice is to keep it; performance and software remain close, and Ring 4 is the better value on paper. If your priority is the smallest fitness ring available, with the most comfortable design and improved sensor architecture, then Ring 5 becomes a more convincing smart ring upgrade worth it—provided you are willing to pay a higher entry price for subtle but long‑term gains.






