Apple Watch Ultra 3 Aluminum 45mm
S11 SiP · Aluminum 45mm · 2025
Pixel Watch 4
Snapdragon W5+ Gen 2 · 45 mm · Fitbit Premium
Apple Watch Ultra 3 Aluminum 45mm takes it — here’s why.
In our weighted Specdex score, Apple Watch Ultra 3 Aluminum 45mm lands at 95 and Pixel Watch 4 at 89. That puts Apple Watch Ultra 3 Aluminum 45mm ahead by 6 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Apple Watch Ultra 3 Aluminum 45mm if…
- ✓Satellite connectivity (Ultra 3)
- ✓Blood pressure trends (Series 11)
- ✓watchOS 12
Pick Pixel Watch 4 if…
- ✓Better battery than Watch 3
- ✓Improved Fitbit integration
- ✓Gemini on wrist
Winner by scenario
Derived from the sub-score breakdown · not a separate testHealth
Apple Watch Ultra 3 Aluminum 45mmCompared on the health sub-score
Apple Watch Ultra 3 Aluminum 45mm leads on health (96 vs 92).
Display
Apple Watch Ultra 3 Aluminum 45mmCompared on the display sub-score
Apple Watch Ultra 3 Aluminum 45mm leads on display (95 vs 92).
Fitness
Apple Watch Ultra 3 Aluminum 45mmCompared on the fitness sub-score
Apple Watch Ultra 3 Aluminum 45mm leads on fitness (94 vs 92).
Value for money
Pixel Watch 4Specdex score per dollar at MSRP
Pixel Watch 4 more score per dollar ($399 vs $799).
Score breakdown
Specs side-by-side
| Spec | Apple Watch Ultra 3 Aluminum 45mm | Pixel Watch 4 |
|---|---|---|
| Chip | S11 SiP | Snapdragon W5+ Gen 2 |
| Case | Aluminum 45mm | — |
| Release year | 2025 | 2025 |
| Battery | — | 36 h |
| Water | — | 5 ATM |
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
Pixel Watch 4
- +Better battery than Watch 3
- +Improved Fitbit integration
- +Gemini on wrist
- −Still 36h battery
- −Premium LTE tier
- −Limited third-party watchfaces
FAQ: Apple Watch Ultra 3 Aluminum 45mm vs Pixel Watch 4
Which is better, Apple Watch Ultra 3 Aluminum 45mm or Pixel Watch 4? +
Apple Watch Ultra 3 Aluminum 45mm scores 95 on our weighted rubric — ahead by 6. Your best pick depends on the sub-scores above.
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.
Is Pixel Watch 4 worth the price? +
At $399, Pixel Watch 4 delivers a Specdex score of 89 — strongest in display.
Does Apple Watch Ultra 3 Aluminum 45mm or Pixel Watch 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 health, Apple Watch Ultra 3 Aluminum 45mm or Pixel Watch 4? +
Apple Watch Ultra 3 Aluminum 45mm — leads on health (96 vs 92). Compared on the health sub-score.
Which is better for display, Apple Watch Ultra 3 Aluminum 45mm or Pixel Watch 4? +
Apple Watch Ultra 3 Aluminum 45mm — leads on display (95 vs 92). Compared on the display sub-score.