![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
![Tecnofit/ Enerfit Tapis Roulant Tf 6 W Polar App Hrc Mp3 Bluetooth 6hp 10 Anni Garanzia Portata 155 Kg | EnerfitSport Tecnofit/ Enerfit Tapis Roulant Tf 6 W Polar App Hrc Mp3 Bluetooth 6hp 10 Anni Garanzia Portata 155 Kg | EnerfitSport](https://www.enerfitsport.it/enerfitsport-far-1500x1500-tecnofit/tapis-/tapis_roualant_elettrico_tf6w_intero.jpg)
Tecnofit/ Enerfit Tapis Roulant Tf 6 W Polar App Hrc Mp3 Bluetooth 6hp 10 Anni Garanzia Portata 155 Kg | EnerfitSport
![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/c8491aa9bc5c5774f26a9734ccabe646ddff30b1/hub/2014/11/18/b27e0fe0-3ac7-4980-b3b6-9c78eb666205/polar-m400-product-photos-12.jpg?auto=webp&width=1200)
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 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/b8c3cdcf7de13896a35ecfe7b69108d9a65309c4/hub/2014/11/18/45a2abcb-a881-4df1-b4ec-bddb41cef8ce/polar-m400-product-photos-13.jpg?auto=webp&width=1200)
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 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/e30a762c23e356287abeecb843d958f2fffe3036/hub/2014/11/18/97390ec4-0385-495c-bcf4-4496555bb14c/polar-m400-product-photos-09.jpg?auto=webp&width=1200)
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 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/7aa3f56d7debd4147132a43c31af53d8a0397bb8/hub/2014/11/18/616b2599-c792-4105-b6c0-f449f8c3ab5f/polar-m400-product-photos-10.jpg?auto=webp&width=1200)