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Lijinlan Silicone Wristband for Polar M400/M430, Classic Soft Adjustable Replacement Wrist Watch Band for Polar M400/M430 Watch Accessories (A1-black) : Cell Phones & Accessories
Polar M430 review
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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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Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
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