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Polar Sleep Plus now available on Polar M430 running watch - endurancebusiness.com
Polar has announced the availability of Polar Sleep Plus on its latest running watch, the Polar M430. The Polar M430 is available now for US$229/€229 at polar.com/M430. According to Polar, the Sleep Plus features: Delivers a complete picture of the user’s fitness based on the intersection of activity, rest and recovery Provides precise measurements, via …