Your body heat and the layers of clothing you wear will keep it protected. I had mine on all day in very cold temps when sledding and it was still fully charged according to the site even though on the device itself the battery power looked low.
I have been thinking about purchasing a Fitbit. Before I do, does anyone know how well they withstand the cold? During the winter, our temperatures plunge to -30 to -40, and I generally walk or run for about an hour outdoors. I am still able to use my iPod, though the battery ends up getting zapped quite quickly. Will the Fitbit be able to cope?
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