Garmin
Garmin fēnix 8
Multi-sport GPS · AMOLED · 16-day battery
90
/ 100
From $999
VS
Apple Watch Ultra 3 wins by 4
Apple
Apple Watch Ultra 3
S10 chip · 49 mm titanium · 3000 nits
94
/ 100
From $799
Specdex verdict
Apple Watch Ultra 3 takes it — here’s why.
In our weighted Specdex score, Garmin fēnix 8 lands at 90 and Apple Watch Ultra 3 at 94. That puts Apple Watch Ultra 3 ahead by 4 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Garmin fēnix 8 if…
- ✓Two-week battery even with AMOLED
- ✓Best-in-class GPS tracking
- ✓Mic + speaker for calls
Pick Apple Watch Ultra 3 if…
- ✓49 mm titanium chassis
- ✓3000 nit peak display
- ✓Up to 42 hours normal use
Garmin fēnix 8 90
vs 94 Apple Watch Ultra 3
Score breakdown
Garmin fēnix 8
90 battery 96
display 90
fitness 96
health 88
durability 92
Apple Watch Ultra 3
94 battery 84
display 96
fitness 96
health 96
durability 96
Specs side-by-side
| Spec | Garmin fēnix 8 | Apple Watch Ultra 3 |
|---|---|---|
| Display | AMOLED, 1.4″ | ▲ Up to 3000 nits |
| Battery | Up to 16 days | ▲ Up to 42 hours; up to 72 hours in Low Power Mode |
| Water | 10 ATM | — |
| GPS | Multi-band GNSS | — |
| Chip | — | Apple S10 chip |
| Case | — | 49 mm titanium |
| Water resistance | — | 100 m (ISO 22810:2010) |
| Starting price | — | $799 |
Garmin fēnix 8
Pros
- +Two-week battery even with AMOLED
- +Best-in-class GPS tracking
- +Mic + speaker for calls
Cons
- −Dated companion app
- −Expensive
- −Android notifications limited
Apple Watch Ultra 3
Pros
- +49 mm titanium chassis
- +3000 nit peak display
- +Up to 42 hours normal use
Cons
- −Same chassis as Ultra 2
- −Expensive at $799
- −Battery only extends to 72 h in low-power
FAQ: Garmin fēnix 8 vs Apple Watch Ultra 3
Which is better, Garmin fēnix 8 or Apple Watch Ultra 3? +
Apple Watch Ultra 3 scores 94 on our weighted rubric — ahead by 4. Your best pick depends on the sub-scores above.
Is Garmin fēnix 8 worth the price? +
At $999, Garmin fēnix 8 delivers a Specdex score of 90 — strongest in battery.
Is Apple Watch Ultra 3 worth the price? +
At $799, Apple Watch Ultra 3 delivers a Specdex score of 94 — strongest in display.
Does Garmin fēnix 8 or Apple Watch Ultra 3 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.