Garmin - Fenix 8 CE (47mm) vs Polar - Grit X2 Pro

The Fenix 8 CE (47mm) edges ahead on the Mars Score (50 vs 42.6), but the 7.4-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Fenix 8 CE (47mm) if you care most about gps mode and smartwatch mode. The biggest gaps in its favor are gps mode, smartwatch mode.

The Grit X2 Pro similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.

Both ship with comparable multi-band gps, solar charging, ecg, so those specs don't separate the two — focus on the differences below.

Bottom line: the Fenix 8 CE (47mm) is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.