I want to import GPX files into ArcMap. There is a good answer Adding GPX files into Arcmap? for version 10.1 using the GPX to Features tool but that is not available in 10.3. I think it has been superceded by Smart Mapping in 10.3, which is not in ArcGIS 10.3 for Desktop, Basic.
Currently I am using QGIS and the GPS plug-in http://docs.qgis.org/2.0/en/docs/user_manual/working_with_gps/plugins_gps.html