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Polar M400 GPS Smart Sport Watch pink + Schärfer Image 7 in 1 Total Widerstand Fitness Kit : Amazon.de: Sport & Freizeit
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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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