Polar - Grit X2 Pro vs Polar - Pacer Pro

These two are nearly even on the Mars Score (42.6 vs 39.7). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.

Pick the Grit X2 Pro if you care most about smartwatch mode / gps mode. The biggest gaps in its favor are smartwatch mode, gps mode, multi-band gps, among others.

The Pacer Pro similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.

Both ship with comparable solar charging, so those specs do not separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.