Oura Oura Ring 4 Ceramic vs Oura Oura Ring 5
Oura Oura Ring 4 Ceramic ($399) vs Oura Oura Ring 5 ($399) — side-by-side specs, weight, pros and cons to help you pick the right smart ring.
Spec-by-spec
| Spec | Oura Oura Ring 4 Ceramic | Oura Oura Ring 5 |
| Price | $399 | $399 |
| Weight | 6.6g | 2g |
| Material | Zirconia ceramic, titanium interior | Titanium, PVD coating |
| Battery | 5-8 days | 6-9 days |
| WR | 100m | — |
| Sensors | HR, HRV, SpO2, Temp, Accel | — |
| Weight | 5.1-8.1g by size (Oura published range) | From 2g, varies by size (Oura published) |
| Sizes | — | 6 to 13 |
Pros & Cons
Oura Oura Ring 4 Ceramic
- Ceramic finish in four colors
- Full Oura sleep, readiness and heart health scoring
- 100 m water resistance
- $399 on sale, $499 list, above most rivals
- Heavier than other smart rings at up to 8.1 g
- Oura membership is billed separately
Oura Oura Ring 5
- Thinner and smaller than the Ring 4
- Six finishes, Silver and Black at $399
- 6 to 9 days of battery
- $499 for Gold, Deep Rose, Stealth and Brushed Silver
- Oura publishes only a lightest weight, not a full range
- Oura membership is billed separately
Oura Oura Ring 4 Ceramic is the better value at $399. If weight matters most, Oura Oura Ring 5 carries lighter at 2g. Both are part of our curated smart ring index — tap through to check current pricing.