Oura Ring 4
Smart ring · 8-day battery · No screen
Apple Watch Ultra 3 Aluminum 45mm
S11 SiP · Aluminum 45mm · 2025
Apple Watch Ultra 3 Aluminum 45mm takes it — here’s why.
In our weighted Specdex score, Oura Ring 4 lands at 87 and Apple Watch Ultra 3 Aluminum 45mm at 95. That puts Apple Watch Ultra 3 Aluminum 45mm ahead by 8 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Oura Ring 4 if…
- ✓Most comfortable wearable ever
- ✓8-day battery life
- ✓Best sleep tracking we've tested
Pick Apple Watch Ultra 3 Aluminum 45mm if…
- ✓Satellite connectivity (Ultra 3)
- ✓Blood pressure trends (Series 11)
- ✓watchOS 12
Score breakdown
Specs side-by-side
| Spec | Oura Ring 4 | Apple Watch Ultra 3 Aluminum 45mm |
|---|---|---|
| Form | Titanium ring (8 sizes) | — |
| Sensors | PPG + temp + accel + ECG-ready | — |
| Battery life | 8 days | — |
| Connectivity | BT 5.3 | — |
| Water resist | 100 m | — |
| Weight | ~3.3 g | — |
| Chip | — | S11 SiP |
| Case | — | Aluminum 45mm |
| Release year | — | 2025 |
Oura Ring 4
- +Most comfortable wearable ever
- +8-day battery life
- +Best sleep tracking we've tested
- −No display — phone required
- −$5.99/mo subscription gates most data
- −Sizing requires order kit
Apple Watch Ultra 3 Aluminum 45mm
- +Satellite connectivity (Ultra 3)
- +Blood pressure trends (Series 11)
- +watchOS 12
- −iPhone-required
- −Battery ~18 h on Series, ~48 h on Ultra
- −Premium pricing
FAQ: Oura Ring 4 vs Apple Watch Ultra 3 Aluminum 45mm
Which is better, Oura Ring 4 or Apple Watch Ultra 3 Aluminum 45mm? +
Apple Watch Ultra 3 Aluminum 45mm scores 95 on our weighted rubric — ahead by 8. Your best pick depends on the sub-scores above.
Is Oura Ring 4 worth the price? +
At $349, Oura Ring 4 delivers a Specdex score of 87 — strongest in health.
Is Apple Watch Ultra 3 Aluminum 45mm worth the price? +
At $799, Apple Watch Ultra 3 Aluminum 45mm delivers a Specdex score of 95 — strongest in health.
Does Oura Ring 4 or Apple Watch Ultra 3 Aluminum 45mm last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.