New Polar M450 GPS cycling computer pushes all the right buttons, V650 gets maps! - Bikerumor
Hands-on with the Polar M450 bike computer - CNET
Polar - The wait is over. The Polar M450 bike computer is now globally available! Everything you need, for less than you thought: http://bit.ly/1FfueH5 #Ridethewayyouwant | Facebook
Hands-on with Polar's new M450 GPS cycling computer | DC Rainmaker