Activity Tracker Polar M400 - GPS Running Watch

Polar M400 Watch has advanced features from general activity tracking to more in depth running analysis and customized personal goals. Best price on the market for the best personal tracker. Buy online NOW. Enjoy this blue color watch and track your improvements.

Best Buy: Polar M400 GPS Watch with Heart Rate Black 90051339

Polar M400 running watch review

Polar M400 review

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Used but works great

POLAR M400 watch, integrated gps, activity tracker, Black With Charger