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 with heart rate sensor review - The Gadgeteer
Track Your Workout Like a Pro Athlete With This Fancy Smartwatch | WIRED
Buy For POLAR M400 M430 GPS Sport Smart Watch Tempered Glass 9H 2.5D Premium Screen Protector Film at affordable prices — free shipping, real reviews with photos — Joom