Polar - Introducing the new Polar M450 bike computer! A perfect riding companion for everyone who has a passion for cycling. Discover more: http://bit.ly/1cz04kj #RideTheWayYouWant. | Facebook
New Polar M450 GPS cycling computer pushes all the right buttons, V650 gets maps! - Bikerumor
M450 User Manual | Charge the Battery
Review - Polar M450
Polar M450 Review - GPS Bike Computer - YouTube
Hands-on with Polar's new M450 GPS cycling computer | DC Rainmaker