By Billy G. · Founder & Lead EditorVerified May 27 by Billy G.
Garmin Fenix 8 47mmvsApple Watch Series 10
✓VerifiedConfidence: 86%
Verdict: Garmin Fenix 8 47mm outperforms on battery (29 days vs 18 hours) and sports metrics per RTINGS and Notebookcheck data, making it the pick for endurance athletes. Apple Watch Series 10 wins on ecosystem integration and lighter design (36.4 g vs 79 g) for iPhone users focused on notifications and health apps. The Fenix 8 takes the overall edge for dedicated fitness tracking.
How we scored itSpec verificationOwner sentimentLive pricing (4h refresh)Editorial reviewOur methodology →
Winner: Garmin Fenix 8 47mm
Garmin Fenix 8 47MM: 8.5/10
Apple Watch Series 10: 7.5/10
Spec-by-spec comparison
Garmin Fenix 8 47MM
Apple Watch Series 10
battery_life
Up to 29 days (smartwatch mode)
Up to 18 hours (typical use)
display
1.3-inch AMOLED, 416x416
1.9-inch LTPO OLED, 416x496
weight
79 g
36.4 g (aluminum)
water_resistance
10 ATM
50 meters
Garmin Fenix 8 47MM
What works
Exceptional multi-day battery life for extended adventures
Advanced multi-band GPS and comprehensive training metrics
Rugged build with dive-rated water resistance
What doesn't
Limited third-party app ecosystem compared to iOS watches
Higher price point for non-Apple users
Apple Watch Series 10
What works
Seamless integration with iPhone and extensive app ecosystem
Bright always-on display with fast charging
Advanced health sensors including sleep apnea detection