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Polar - Not only a color, but a state of mind! For those of you who fancy a little splash of color to brighten up your day. Polar M400 is now available
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Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
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Amazon.com : Polar M400 GPS Smart Sports Watch with Heart Rate Monitor (Black) : Sports & Outdoors
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Amazon.com : Polar M400 GPS Smart Sports Watch with Heart Rate Monitor (Black) : Sports & Outdoors
Polar M400 Review | Tested by GearLab
