![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 announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker Polar announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMGL18921.jpg)
Polar announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker
Polar - #TeamPolar, we've got a bunch of updates for you: - M400 and V800 firmware - Flow web service - Flow app iOS And the icing on the cake: Flow app
![Polar Electro Polar RS400 Garmin Foot Pod Heart rate monitor Sensor, big foot, foot, speed, sensor png | PNGWing Polar Electro Polar RS400 Garmin Foot Pod Heart rate monitor Sensor, big foot, foot, speed, sensor png | PNGWing](https://w7.pngwing.com/pngs/305/305/png-transparent-polar-electro-polar-rs400-garmin-foot-pod-heart-rate-monitor-sensor-big-foot-foot-speed-sensor.png)
Polar Electro Polar RS400 Garmin Foot Pod Heart rate monitor Sensor, big foot, foot, speed, sensor png | PNGWing
![Polar announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker Polar announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3977.jpg)
Polar announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker
![Polar announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker Polar announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker](https://media.dcrainmaker.com/images/2015/01/IMG_3981.jpg)
Polar announces M400 footpod support, also smartphone notifications for V800/M400/A300 | DC Rainmaker
![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)