![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/c7c441cb6aaaaaab2c03f0c0e833b6fdf744cccf/hub/2014/11/20/2b4eef50-b6e6-4a90-a19e-755b53f16f30/polarm400.jpg?auto=webp&fit=cover&height=482&width=856)
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)
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/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
![Polar M400 GPS Sports Watch & Activity Tracker With Heart Rate Monitor : Buy Online at Best Price in KSA - Souq is now Amazon.sa: Sporting Goods Polar M400 GPS Sports Watch & Activity Tracker With Heart Rate Monitor : Buy Online at Best Price in KSA - Souq is now Amazon.sa: Sporting Goods](https://m.media-amazon.com/images/I/411Fcvie4PL._AC_UF894,1000_QL80_.jpg)
Polar M400 GPS Sports Watch & Activity Tracker With Heart Rate Monitor : Buy Online at Best Price in KSA - Souq is now Amazon.sa: Sporting Goods
![Polar M400 Activity Tracker/GPS Running Watch With Heart Rate Sensor! | Gadget Explained Reviews Gadgets | Electronics | Tech Polar M400 Activity Tracker/GPS Running Watch With Heart Rate Sensor! | Gadget Explained Reviews Gadgets | Electronics | Tech](https://2.bp.blogspot.com/--i8ZsMSh9LI/VsiNLt-VfxI/AAAAAAAAB38/do-lTA-ylFI/s640/IMG_20160218_152720.jpg)
Polar M400 Activity Tracker/GPS Running Watch With Heart Rate Sensor! | Gadget Explained Reviews Gadgets | Electronics | Tech
![Polar M400 Activity Tracker/GPS Running Watch With Heart Rate Sensor! | Gadget Explained Reviews Gadgets | Electronics | Tech Polar M400 Activity Tracker/GPS Running Watch With Heart Rate Sensor! | Gadget Explained Reviews Gadgets | Electronics | Tech](https://1.bp.blogspot.com/-96kJ_YcnjL4/VsiPBiWUzVI/AAAAAAAAB40/Xc32uC6eIp4/w1200-h630-p-k-no-nu/IMG_20160218_153142.jpg)