4.5 von 5. Half point deduction because of the bumpy operation on the clock itself. The clock is a good buy for an ambitious athlete in the field running, swimming and cycling. However, I am watching so that only my legs, so I can only comment on. The comfort when walking is very good, that you hardly notice that one wears a clock. GPS and heart rate belt function properly. I can only agree with me other judgments that the GPS is very accurate. When running, you can let up to 4 lines show, for example, average speed, heart rate, running distance, duration. There are the English system of units (miles, feet, pounds, ..) by default available and the metric system (kilometers, kilograms, ..). In the metric system you have to set the clock. The settings you can make to the clock directly or through the software on the PC. Supports here is Windows and Apple. Charging the clock takes place via the included cable via USB. The software must be downloaded, is not present delivery. The software really can adjust everything on the clock, and configure the time synchronization up to 3 different display modes for running, or areas, and alarms for heart rate. The evaluation is carried out by uploading the data stored in the clock runs. Therefore you have to create an account with Trainingspeaks.com. The evaluation is then extremely Comprehensive and also offers optional unlockable professional tools. With the help of Google Maps, the running track is displayed. Charts for UA heart rate, speed is available on the website. There are, among other things errrechnet calorie consumption, as well as various training stressors (eg RTSS). One can enter his equipment and for example monitor wear his shoes, create Trainigspläne and diet plans. However, the data are all only available online. There are apps for smartphones and pads Trainigspeaks that are quite nice, but show only a portion of the stored data.
Without PC and Internet makes the purchase of this clock in my opinion little sense. But I do not see as a disadvantage, because this is standard nowadays.
The successor model 2.0 is probably a bit more friendly by the operator, but looks not so suitable for everyday use, and of course has not the reduced price.