Polar F55 - Watches
(Michael Heiko)

Polar F55 – Watches: Reviews

Polar F55 - Watches

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This genius watch measures your resting heart rate (collected while you take a five-minute break) and automatically builds a weekly training regimen. Then it tracks your progress and updates your workouts accordingly. www.polarusa.com

From Outside Magazine, April/May 2021 Lead Photo: Michael Heiko