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COROS APEX 4 (46 mm) vs Polar Grit X2 Pro
The specs that matter for triathlon, side by side, from each maker’s own published figures.
| Spec | COROS APEX 4 (46 mm) | Polar Grit X2 Pro |
|---|---|---|
| GPS battery | 53 h | 43 h |
| Smartwatch battery | 24 days | 10 days |
| Triathlon / multisport mode | Yes | Yes |
| Onboard maps | Yes | Yes |
| Open-water GPS (our rating) | 5 / 5 | 5 / 5 |
| Weight | 64 g | 79 g |
| Screen | MIP | AMOLED |
Open-water GPS is our 1–5 rating from the satellite systems each maker lists: multi-band receivers score 5. Everything else is the maker’s own figure.
Which should you pick?
COROS
Pick the APEX 4 (46 mm) if…
- you want the longer GPS battery: 53 h vs 43 h
- you want the longer smartwatch battery: 24 days vs 10 days
- you want the lighter one: 64 g vs 79 g
Polar
Pick the Grit X2 Pro if…
On the specs above it doesn’t pull ahead, so choose on fit, feel or price.
Check price →Specs from the makers’ own pages: COROS, Polar.
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Triathlon Watch Comparison
Battery life, open-water GPS and maps across the watches triathletes buy.
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