Oura Ring 5 vs Oura Ring 4: Should You Upgrade?
Oura released the Ring 5 on June 4, 2026, calling it the world's smallest smart ring — thinner and lighter than the Ring 4, with premium finishes at a premium price. At the same time, the Ring 4 has dropped to its lowest prices ever. That makes this less a question of which ring is better, and more a question of whether the Ring 5's refinements are worth paying roughly full price when the Ring 4 does almost everything the Ring 5 does.
At a glance
Full comparison
| Feature | Oura Ring 5 💍 | Oura Ring 4 💍 |
|---|---|---|
| Launch | June 2026 | October 2024 |
| Form factor | Titanium ring, thinnest Oura yet | Titanium ring |
| Sensors | Updated sensor platform | Ring 4 sensor platform |
| Sleep & readiness tracking | Full Oura platform | Full Oura platform |
| Cycle Insights & female-physiology AI (2026) | Yes | Yes — same app features |
| Subscription | Required for full features | Required for full features |
| Finishes | 6 (incl. Gold, Stealth, Deep Rose) | Multiple, incl. Ceramic line |
| Price position (2026) | New flagship pricing | Heavily discounted |
Round 1: Hardware & comfort
The Ring 5's headline change is physical: Oura says it is the smallest smart ring on the market, noticeably thinner and lighter than the Ring 4. For a device worn 24/7 — including sleep, workouts, and formal settings — every fraction of a millimeter matters, and early launch coverage consistently highlights the improved wearability.
The Ring 4 remains an excellent piece of hardware. It was already light enough that most wearers stop noticing it within days. If you have smaller fingers or found previous Oura rings bulky between the knuckles, the Ring 5's slimmer profile is the stronger argument for upgrading; otherwise the difference is comfort refinement, not a new capability.
Round 2: Tracking & app features
This is the round that decides the purchase for most people: the Oura app experience is essentially identical on both rings. Sleep staging, Readiness, HRV, temperature trends, Cycle Insights, and Oura's 2026 AI model trained on clinical research of female physiology all run on the Ring 4 as well as the Ring 5.
Oura has historically kept older rings supported with new software features for years. Unless Oura ships Ring 5-exclusive features that depend on its updated sensor platform — none confirmed as essential at launch — a Ring 4 buyer today gets the same daily experience in the app.
Round 3: Price & value
The Ring 5 launched at flagship pricing, with premium finishes costing meaningfully more than the base colors. The Ring 4, meanwhile, has seen discounts of up to half off its original price since the Ring 5 announcement — while remaining fully supported.
Both rings require the same Oura subscription for full functionality, so the ongoing cost is identical. The value gap is entirely in the upfront hardware price, and right now that gap is large. For first-time smart ring buyers on any kind of budget, the discounted Ring 4 is one of the best values in wearables.
Round 4: Who should actually upgrade?
Coming from an Oura Ring 3 or older: the jump to either the Ring 4 or Ring 5 is significant — better sensors, better fit, better battery behavior. Coming from a Ring 4: you are paying primarily for size and finish, not for new health data.
If you wear your ring through weight training or gripping exercises, note that ring damage risk and comfort under load depend heavily on profile height — the Ring 5's slimmer build is a practical advantage there. For everyone else, waiting a generation is a reasonable choice.
Cost & subscription
Both rings use the same subscription for full app access, so total cost of ownership differs only by the hardware price you pay on day one. With Ring 4 discounts running deep since June 2026, the Ring 4 is the clear value pick; the Ring 5 is the pick if you want the newest hardware and premium finishes.
Buy Oura Ring 5 if: you want the thinnest, lightest Oura ever made, you're upgrading from a Ring 3 or older anyway, or you want the premium finishes (Gold, Stealth, Deep Rose) and don't mind paying flagship price for launch-year hardware.
Buy Oura Ring 4 if: you want the same app, same subscription, and nearly the same experience at a fraction of the current flagship price. While discounted stock lasts, this is the smart-money choice for most people.
💍 Oura Ring 5
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