Thanks to this clock, I started to go jogging regularly and always find motivation to do more. Within a few months I was so fit that I could participate in a 10km run without overexert myself. In my eyes, a nice motivator who harmonizes perfectly with Nike shoes. Those who do not necessarily want to buy Nike shoes, can also do without it and use the built-in GPS sensor for tracking its path. In my opinion, this is even much more precisely than with the shoe sensor. During the running itself, I can let me show the diverse values in real time. Speed in km / h, Pace (time that you need a one-kilometer run course), the elapsed time, calories burned and a few more. The synchronization with my PC works perfectly. Ingeniously, it is also that you can compare with his friends, + also use the Nike. Nike + itself offers in addition to the run statistics such as the mileage and different averages, and a sort of calendar that can display an all runs. Additional motivation there by "Achievements / success" as we know it from playing! For example, you will be rewarded run x times a week or to have x managed kilometers a month. A LevelUp system is one of them, the number of required kilometers from level to level is significantly more. Overall I'm really happy with this sports watch.