We found ourselves choosing the Coros Vertix 2 whenever we needed extra battery life and weren't doing high-output activities with lots of arm movement
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Coros Vertix 2 review: A battery and GPS beast
COROS VERTIX 2 review: Big battery and big price tag
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Reviewed: The New Coros Vertix 2 Smartwatch – Triathlete
Coros Vertix 2 Review – iRunFar