Polar - Runners! Stride sensor support for Polar M400 is here. We've also improved the GPS fix! Learn more: http://bit.ly/1GJC6jr | Facebook
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Polar M400 Montre GPS de course à pied, Avec ceinture cardiaque, Noir : MainApps: Amazon.fr: Sports et Loisirs
![Amazon.com: POLAR Vantage V Sports Watch for Running, Cycling, Swimming, Etc. Precision Prime Sensor Fusion Technology Enabled, Waterproof, GPS Watch : Electronics Amazon.com: POLAR Vantage V Sports Watch for Running, Cycling, Swimming, Etc. Precision Prime Sensor Fusion Technology Enabled, Waterproof, GPS Watch : Electronics](https://m.media-amazon.com/images/I/61Sptf6KySL._SY350_PKmb-play-button-overlay_.jpg)