The M400 Sports Watch is built for runners interested in advanced features like GPS tracking and training monitoring. With the Polar Flow web service and mobile app. atheletes can create workout goals and gain deeper insight on activity. The M400 syncs wirelessly via Bluetooth and is compatible with Windows-based PCs and Macs. The watch retails for $199.95 and can be packaged with a Polar H7 heart rate sensor for an additional $50.