Sigma's ROX 10. 0 Set GPS Computer incorporates the same advanced metric measurement, route mapping, and trip planning features as the Basic model, but with the added measuring power of speed and cadence meters and a heartrate monitor, giving you all the accessories you need for training purposes short of a power meter. Of course, the computer itself is still the star, and the ROX 10. 0's GPS capabilities mean it not only tells you were you've been, but it can now tell you where you're going. Included Data Center software lets you map your route before you even throw a leg over the top tube. Included features like waypoint, wrong way, and off track alarms serve as virtual gendarmes to keep you on course, whether it's as serious as making the right turn into Roubaix's velodrome or as casual as finding the country lane that leads to the next winery. The ROX 10. 0 also performs the usual functions of mapping body metrics and is compatible with virtually all ANT power meters. It keeps you on course by displaying intensity and target zones, and the lap counter makes sure you don't overextend yourself or inadvertently cut a workout short. This data is stored and, with the included micro USB cable, can be uploaded, analyzed, and admired with the same Data Center software that plots your course.