![Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET](https://www.cnet.com/a/img/resize/3311f833880d7e308321b7ad92f39552d9f68bbe/hub/2014/11/18/616b2599-c792-4105-b6c0-f449f8c3ab5f/polar-m400-product-photos-10.jpg?auto=webp&fit=crop&height=172&width=306)
Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
![Polar M400 {A Review}- Confessions of a Fitness Instructor Fitness | Nutrition | Recipes | Lifestyle Polar M400 {A Review}- Confessions of a Fitness Instructor Fitness | Nutrition | Recipes | Lifestyle](https://confessionsofafitnessinstructor.com/wp-content/uploads/2014/11/DSC07078.jpg)
Polar M400 {A Review}- Confessions of a Fitness Instructor Fitness | Nutrition | Recipes | Lifestyle
![Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET](https://www.cnet.com/a/img/resize/2b801963ea3df437c926c8204a277e93e199bc1a/hub/2014/11/18/d4058596-e577-4eda-8536-a2398b2f808e/polar-m400-product-photos-19.jpg?auto=webp&fit=crop&height=360&width=640)
Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
![Pulsometer Polar M400 HR Schwarz mit GPS | R-GOL.com - Fußballschuhe und Fußballbekleidung günstig kaufen Pulsometer Polar M400 HR Schwarz mit GPS | R-GOL.com - Fußballschuhe und Fußballbekleidung günstig kaufen](https://gfx.r-gol.com/media/res/products/897/103897/465x605/pulsometr-polar-m400-hr-black-z-gps_1.png)