![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/6352cfa856c6cf716f3fa03772d3528df84ecfda/hub/2014/11/18/7fd83273-3937-4341-a29b-a62381f42cc5/polar-m400-product-photos-11.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 - Not only a color, but a state of mind! For those of you who fancy a little splash of color to brighten up your day. Polar M400 is now available
![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
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Watch Strap For Polar M400 M430 GPS Running Smart Sports Watch Band Silicone Wristband Wrist Bracelet Belt Strap Present|Smart Accessories| - AliExpress
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