Perfect for ambitious runners: The M400 Multi-Function watch by Polar. The GPS based recording allows you to see exactly how long and how far you have run. The separately available heart rate belt allows you to set the specific heart frequencies you wish to exercise within. The watch can of course also automatically measure this. With its practical interval timer, the M400 Multi-function watch helps to optimize your training sessions. Simply enter the desired intervals and you are on your way. When you have finished, the small computer will even let you know how much your training paid off. The data can also be uploaded to the Polar online portal for better evaluation. Here you can have a look at detailed evaluations of your training data. The watch's display can be individually set and the integrated activity tracker will get you off your backside when it is time to keep moving. The M400 Multi-function watch is a practical littler helper for anyone who don't want to leave their training to chance. "