Apple Watch Ultra 3 Stainless 45mm
S11 SiP · Stainless 45mm · 2025
Oura Ring 4
Smart ring · 8-day battery · No screen
Apple Watch Ultra 3 Stainless 45mm takes it — here’s why.
In our weighted Specdex score, Apple Watch Ultra 3 Stainless 45mm lands at 95 and Oura Ring 4 at 87. That puts Apple Watch Ultra 3 Stainless 45mm ahead by 8 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Apple Watch Ultra 3 Stainless 45mm if…
- ✓Satellite connectivity (Ultra 3)
- ✓Blood pressure trends (Series 11)
- ✓watchOS 12
Pick Oura Ring 4 if…
- ✓Most comfortable wearable ever
- ✓8-day battery life
- ✓Best sleep tracking we've tested
Winner by scenario
Derived from the sub-score breakdown · not a separate testHealth
TieCompared on the health sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Durability
Apple Watch Ultra 3 Stainless 45mmCompared on the durability sub-score
Apple Watch Ultra 3 Stainless 45mm leads on durability (96 vs 92).
Battery
Oura Ring 4Compared on the battery sub-score
Oura Ring 4 leads on battery (96 vs 82).
Value for money
Oura Ring 4Specdex score per dollar at MSRP
Oura Ring 4 more score per dollar ($349 vs $999).
Score breakdown
Specs side-by-side
| Spec | Apple Watch Ultra 3 Stainless 45mm | Oura Ring 4 |
|---|---|---|
| Chip | S11 SiP | — |
| Case | Stainless 45mm | — |
| Release year | 2025 | — |
| 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 |
Apple Watch Ultra 3 Stainless 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
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
FAQ: Apple Watch Ultra 3 Stainless 45mm vs Oura Ring 4
Which is better, Apple Watch Ultra 3 Stainless 45mm or Oura Ring 4? +
Apple Watch Ultra 3 Stainless 45mm scores 95 on our weighted rubric — ahead by 8. Your best pick depends on the sub-scores above.
Is Apple Watch Ultra 3 Stainless 45mm worth the price? +
At $999, Apple Watch Ultra 3 Stainless 45mm delivers a Specdex score of 95 — strongest in health.
Is Oura Ring 4 worth the price? +
At $349, Oura Ring 4 delivers a Specdex score of 87 — strongest in health.
Does Apple Watch Ultra 3 Stainless 45mm or Oura Ring 4 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.
Which is better for durability, Apple Watch Ultra 3 Stainless 45mm or Oura Ring 4? +
Apple Watch Ultra 3 Stainless 45mm — leads on durability (96 vs 92). Compared on the durability sub-score.
Which is better for battery, Apple Watch Ultra 3 Stainless 45mm or Oura Ring 4? +
Oura Ring 4 — leads on battery (96 vs 82). Compared on the battery sub-score.