Fitbit Charge 6 (Pro)
Fitness · 2023 · Pro
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, Fitbit Charge 6 (Pro) lands at 82 and Apple Watch Ultra 3 Aluminum 45mm at 95. That puts Apple Watch Ultra 3 Aluminum 45mm ahead by 13 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Fitbit Charge 6 (Pro) if…
- ✓Extended battery life vs smartwatches
- ✓Sleep + recovery metrics
- ✓Activity-specific modes
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 | Fitbit Charge 6 (Pro) | Apple Watch Ultra 3 Aluminum 45mm |
|---|---|---|
| Type | Fitness tracker / ring / bike computer | — |
| Variant | Pro | — |
| Release year | 2023 | 2025 |
| Chip | — | S11 SiP |
| Case | — | Aluminum 45mm |
Fitbit Charge 6 (Pro)
- +Extended battery life vs smartwatches
- +Sleep + recovery metrics
- +Activity-specific modes
- −Notifications limited
- −No smartwatch app store
- −Some require subscription
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: Fitbit Charge 6 (Pro) vs Apple Watch Ultra 3 Aluminum 45mm
Which is better, Fitbit Charge 6 (Pro) or Apple Watch Ultra 3 Aluminum 45mm? +
Apple Watch Ultra 3 Aluminum 45mm scores 95 on our weighted rubric — ahead by 13. Your best pick depends on the sub-scores above.
Is Fitbit Charge 6 (Pro) worth the price? +
At $210, Fitbit Charge 6 (Pro) delivers a Specdex score of 82 — strongest in battery.
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 Fitbit Charge 6 (Pro) 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.