The NavCom 400 is a super device for all technology enthusiasts athletes (running, cycling, walking, hiking). I have now tested him at cycling and running and am very satisfied with the accuracy. The NavCom 400 GPS receiver is a very closely the current distance and speed. The GPS positioning function is also very accurate. Because of its small size (it is the wrist always there and does not interfere) and the precision NavCom 400 is well suited for the waypoint navigation to trace eg PC designed routes (by bicycle). Plus the simple installation of the software, simple yet useful bicycle holder, light weight (wrist), easy to read display with illumination option, long term of the accus, easy and quick access to the satellite (also in greenwood and in your pocket) , problem-free transfer of logs to Google Earth or Google Maps. The GPS computer NavCom 400 also offers various intelligent pedometer and GPS Analysis menus that allow you to monitor your activities in an efficient manner. Conclusion: Top GPS receiver, great outdoor instrument with practical software! Suitable for The NavCom 400 is a super device for all technophiles (runners, cyclists, hikers) who want to record your sports activities, then evaluate them at home and are willing to pay the rather high price for such a "toy" ,