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$229.99
Polar's AXN300 is a great choice for anyone who lives or plays in the mountains. Like any Polar, it measures heart rate with unerring accuracy, but there's much more. The AXN300 keeps track of your runs with a slope counter, checks vertical speed up or down the rock and monitors the weather with its built-in barometer. Plus, the OwnCal feature lets you know when it's time to pause the fun and refuel.
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